Sony SDX 1100V User Manual

SDX-1100V  
SDX-1100V/R  
5.25”Model  
Product Specification Manual  
Version 1.0  
August, 2006  
Copyright © 2006, Sony Corporation.  
All right reserved.  
NOTE:  
This Product Specification Manual is applicable for AIT-5 drive.  
Table of Contents  
1. INTRODUCTION............................................................................................. 1-1  
1.1. About this Product Specification Manual................................................................ 1-1  
1.2. Introducing the Sony AIT Technology..................................................................... 1-1  
1.3. Features of the Drive................................................................................................. 1-1  
1.4. Reference................................................................................................................... 1-3  
1.4.1. How to get ECMA-329 Standard Document ............................................................ 1-3  
2. SPECIFICATIONS .......................................................................................... 2-1  
2.1. Specifications............................................................................................................ 2-1  
2.1.1. Dimensions.............................................................................................................. 2-1  
2.1.1.1. Mounting Holes....................................................................................................... 2-2  
2.1.2. Weight ..................................................................................................................... 2-4  
2.1.3. Connectors .............................................................................................................. 2-4  
2.1.3.1. SCSI Cables and Terminators................................................................................. 2-4  
2.2. Environmental Specifications .................................................................................. 2-4  
2.2.1. Temperature and Humidity Range ........................................................................... 2-4  
2.2.2. Altitude..................................................................................................................... 2-5  
2.2.3. Suspended Particulate............................................................................................. 2-5  
2.2.4. Vibration .................................................................................................................. 2-5  
2.2.5. Shock....................................................................................................................... 2-5  
2.2.6. Acoustic Noise......................................................................................................... 2-5  
2.2.7. EMC......................................................................................................................... 2-5  
2.2.8. Orientation............................................................................................................... 2-5  
2.3. Performance Specification....................................................................................... 2-6  
2.3.1. Data Capacity.......................................................................................................... 2-6  
2.3.2. Data transfer Rate ................................................................................................... 2-7  
2.3.2.1. Sustained Data Transfer Rate to and from the Tape............................................... 2-7  
2.3.2.2. Burst Transfer Rate to and from the SCSI Bus ....................................................... 2-7  
2.3.3. Initialize Time........................................................................................................... 2-7  
2.3.4. Load Time................................................................................................................ 2-7  
2.3.5. Unload Time ............................................................................................................ 2-7  
2.3.6. Search Time ............................................................................................................ 2-7  
2.3.7. Rewind Time............................................................................................................ 2-7  
2.3.8. Long Erase Time ..................................................................................................... 2-8  
2.3.9. Error Rate................................................................................................................ 2-8  
2.3.10. Definition of Failure ............................................................................................... 2-8  
2.3.11. Mean Time Between Failures ................................................................................ 2-8  
2.3.12. Mean Time to Repair............................................................................................. 2-8  
2.3.13. Component Life..................................................................................................... 2-8  
2.3.14. Durability ............................................................................................................... 2-8  
2.4. Safety ......................................................................................................................... 2-9  
2.4.1. Conditions of Acceptability....................................................................................... 2-9  
2.5. Installation Requirements ........................................................................................ 2-9  
2.5.1. Power Requirements ............................................................................................... 2-9  
2.6. Data Compression................................................................................................... 2-10  
SDX-1100V series Ver.1.0 Table of Contents  
3. INSTALLATION .............................................................................................. 3-1  
3.1. Installation Guide ...................................................................................................... 3-1  
3.1.1. SCSI ID Number Jumper......................................................................................... 3-2  
3.1.2. Termination Power Switch ....................................................................................... 3-2  
3.1.3. Parity Disable Jumper.............................................................................................. 3-3  
3.1.4. Data Compression ON Switch................................................................................. 3-3  
3.1.5. Power Connector..................................................................................................... 3-3  
3.1.6. SCSI 68 pin Connector............................................................................................ 3-3  
3.1.7. Attaching and Removing the Dust Cover................................................................. 3-6  
3.1.7.1. Attaching the Dust Cover........................................................................................ 3-6  
3.1.7.2. Removing the Dust Cover....................................................................................... 3-7  
4. OPERATION................................................................................................... 4-1  
4.1. Summary of LED Indications.................................................................................... 4-1  
4.2. Operator Action......................................................................................................... 4-2  
4.2.1. Powering up the Drive ............................................................................................. 4-2  
4.2.2. Inserting Cassettes.................................................................................................. 4-2  
4.2.3. Removing Cassettes................................................................................................ 4-2  
4.2.4. Hard Reset Hole ...................................................................................................... 4-2  
4.2.5. Write-Protecting Cassettes...................................................................................... 4-2  
4.3. Internal Function ....................................................................................................... 4-3  
4.3.1. The Load Sequence ................................................................................................ 4-3  
4.3.2. The Unload Sequence............................................................................................. 4-3  
4.3.3. Power-Fail or SCSI Reset Handling......................................................................... 4-3  
4.3.4. Diagnostic and Normal Status Displays................................................................... 4-4  
4.3.4.1. Diagnostic Status Display....................................................................................... 4-4  
4.3.4.2. Normal Status Display ............................................................................................ 4-4  
4.4. Tape Alert................................................................................................................... 4-5  
4.5. Tape Format............................................................................................................... 4-5  
4.6. Maintenance, Troubleshooting and Service............................................................ 4-6  
4.6.1. Head Cleaning......................................................................................................... 4-6  
4.6.1.1. Message When Cleaning Cassette is Necessary ................................................... 4-6  
4.6.1.2. The condition of Cleaning Request......................................................................... 4-6  
4.6.1.3. Usage of Cleaning Cassette................................................................................... 4-6  
4.6.2. Troubleshooting Guide............................................................................................. 4-6  
4.6.2.1. Operational Problems............................................................................................. 4-6  
4.6.2.2. Read/Write Problems.............................................................................................. 4-9  
4.6.2.3. Replace Tape.......................................................................................................... 4-9  
4.6.2.4. Media Warning........................................................................................................ 4-9  
5. SCSI INTERFACE .......................................................................................... 5-1  
5.1. Introduction ............................................................................................................... 5-1  
5.2. SCSI Bus Operation .................................................................................................. 5-3  
5.3. Message Specification.............................................................................................. 5-4  
5.3.1. COMMAND COMPLETE (00h)................................................................................ 5-5  
5.3.2. EXTENDED MESSAGE (01h) ................................................................................. 5-5  
5.3.2.1. PARALLEL PROTOCOL REQUEST (04h) ............................................................. 5-5  
5.3.2.2. SYNCHRONOUS DATA TRANSFER REQUEST (01h).......................................... 5-6  
SDX-1100V series Ver.1.0 Table of Contents  
5.3.2.3. WIDE DATA TRANSFER REQUEST...................................................................... 5-8  
5.4. Status Specification................................................................................................ 5-12  
6. COMMAND SPECIFICATION ........................................................................ 6-1  
6.1. ERASE 19h................................................................................................................. 6-2  
6.2. INQUIRY 12h .............................................................................................................. 6-3  
6.3. LOAD/UNLOAD 1Bh.................................................................................................. 6-8  
6.4. LOCATE 2Bh............................................................................................................ 6-10  
6.5. LOG SELECT 4Ch.....................................................................................................6-11  
6.6. LOG SENSE 4Dh...................................................................................................... 6-13  
6.6.1. The Log Page Descriptor....................................................................................... 6-14  
6.6.2. The Log Parameter Descriptor............................................................................... 6-15  
6.6.3. Summary List of Supported Pages (00h)............................................................... 6-17  
6.6.4. Write and Read Error Counters Pages (02h or 03h).............................................. 6-17  
6.6.5. Last N Error Events List (07h) ............................................................................... 6-18  
6.6.6. Tape Alert Log Page (2Eh)..................................................................................... 6-19  
6.6.7. Tape Log Page (30h) (Sony Unique) ..................................................................... 6-24  
6.6.8. Tape Capacity Log Page (31h) (Sony Unique)....................................................... 6-25  
6.6.9. Drive Usage Log Page (33h) (Sony Unique) ......................................................... 6-26  
6.6.10. Read and Write Frame Error Counter Page (34h & 35h) .................................... 6-27  
6.6.11. Data Compression Transfer Log Page (39h) (Sony Unique) ............................... 6-30  
6.6.12. AIT Log Page (3Ch) (Sony Unique)..................................................................... 6-31  
6.6.13. MIC Fixed Length Information Page (3Dh) (Sony Unique).................................. 6-33  
6.6.14. MIC Variable Length Information Page (3Eh) (Sony Unique) .............................. 6-38  
6.7. MODE SELECT(6/10) 15h and 55h ......................................................................... 6-40  
6.7.1. Disconnect-Reconnect Page (02h)........................................................................ 6-44  
6.7.2. Control Mode Page (0Ah)...................................................................................... 6-45  
6.7.3. Data Compression Control Page (0Fh).................................................................. 6-46  
6.7.4. Device Configuration Page (10h)........................................................................... 6-47  
6.7.5. Medium Partitions Parameter Page (11h).............................................................. 6-49  
6.7.6. Informational Exceptions Control Page (1Ch)........................................................ 6-51  
6.7.7. AIT Device Configuration Page (31h) .................................................................... 6-52  
6.8. MODE SENSE (6/10) 1Ah and 5Ah ......................................................................... 6-54  
6.9. PERSISTENT RESERVE IN 5Eh.............................................................................. 6-57  
6.10. PERSISTENT RESERVE OUT 5Fh ....................................................................... 6-60  
6.11. PREVENT ALLOW MEDIUM REMOVAL 1Eh........................................................ 6-62  
6.12. READ 08h .............................................................................................................. 6-63  
6.13. READ ATTRIBUTE 8Ch......................................................................................... 6-65  
6.13.1. ATTRIBUTE VALUES service action................................................................... 6-66  
6.13.2. ATTRIBUTE LIST service action ......................................................................... 6-67  
6.13.3. PARTITION LIST service action.......................................................................... 6-68  
6.13.4. VOLUME LIST service action.............................................................................. 6-68  
6.14. READ BLOCK LIMITS 05h.................................................................................... 6-69  
6.15. READ BUFFER 3Ch .............................................................................................. 6-70  
6.16. READ POSITION 34h ............................................................................................ 6-73  
6.17. RECEIVE DIAGNOSTIC RESULTS 1Ch................................................................ 6-75  
6.18. RELEASE (6/10) 17h and 57h............................................................................... 6-77  
6.19. REPORT DENSITY SUPPORT 44h....................................................................... 6-79  
6.20. REPORT DEVICE IDENTIFIER A3h ...................................................................... 6-82  
6.21. REPORT LUNS A0h............................................................................................... 6-83  
SDX-1100V series Ver.1.0 Table of Contents  
6.22. REQUEST SENSE 03h .......................................................................................... 6-84  
6.23. RESERVE (6/10) 16h and 56h............................................................................... 6-93  
6.24. REWIND 01h.......................................................................................................... 6-95  
6.25. SEND DIAGNOSTIC 1Dh....................................................................................... 6-96  
6.26. SET DEVICE IDENTIFIER A4h.............................................................................. 6-98  
6.27. SPACE 11h............................................................................................................. 6-99  
6.27.1. CHECK CONDITION......................................................................................... 6-101  
6.28. TEST UNIT READY 00h....................................................................................... 6-102  
6.29. WRITE 0Ah .......................................................................................................... 6-103  
6.30. WRITE ATTRIBUTE 8Dh...................................................................................... 6-104  
6.31. WRITE BUFFER 3Bh........................................................................................... 6-106  
6.32. WRITE FILEMARKS 10h ..................................................................................... 6-108  
7. DRIVE DIAGNOSTICS ................................................................................... 7-1  
7.1. Overview .................................................................................................................... 7-1  
7.2. Diagnostic Test.......................................................................................................... 7-1  
7.2.1. Power-on Self Test................................................................................................... 7-1  
7.2.2. SEND DIAGNOSTIC command - Self Test.............................................................. 7-2  
7.2.3. SEND DIAGNOSTIC command - Individual Test..................................................... 7-2  
7.2.4. Diagnostic Test Number Summary .......................................................................... 7-3  
7.2.5. RECEIVE DIAGNOSTIC RESULT command .......................................................... 7-4  
8. APPENDIX A: ASC & ASCQ ALPHABETIC ORDER.................................... 8-1  
9. APPENDIX B: ASC & ASCQ NUMERIC ORDER.......................................... 9-1  
10. APPENDIX C: ASC & ASCQ FOR AIT (SONY UNIQUE).......................... 10-1  
11. APPENDIX D: SCSI COMMANDS (OP CODE ORDER) ........................... 11-1  
12. APPENDIX E: MEDIUM AUXILIARY MEMORY ATTRIBUTE ................... 12-1  
12.1. INTRODUCTION .................................................................................................... 12-1  
12.2. OVERVIEW............................................................................................................. 12-1  
12.3. MEDIUM AUXILIALY MEMORY ATTRIBUTE TYPES AND STATES .................... 12-1  
12.4. MEDIUM AUXILIARY MEMORY ATTRIBUTE DATA ............................................. 12-2  
12.4.1. Attribute Format................................................................................................... 12-2  
12.4.2. Attribute Identifier Values..................................................................................... 12-3  
12.4.3. Standard Device Type Attributes ......................................................................... 12-3  
12.4.4. Standard Medium Type Attributes ....................................................................... 12-9  
12.4.5. Standard Host Type Attributes........................................................................... 12-10  
13. APPENDIX F: AIT BASED WORM SYSTEM............................................. 13-1  
13.1. Important Notice ................................................................................................... 13-1  
13.2. Write-Protected (WP) Bit in Mode Sense Data.................................................... 13-1  
13.3. How to detect a WORM cartridge. ....................................................................... 13-1  
13.4. How to initialize a WORM cartridge..................................................................... 13-1  
13.5. How to handle the WORM cartridge in the drive................................................ 13-2  
SDX-1100V series Ver.1.0 Table of Contents  
14. APPENDIX G: CD-ROM DEVICE EMULATION FOR DISASTER  
RECOVERY ...................................................................................................... 14-1  
14.1. Overview................................................................................................................ 14-1  
14.2. Creating Disaster Recovery Tape........................................................................ 14-1  
14.3. Configuring The Drive For Disaster Recovery Operation.................................. 14-1  
14.4. Exiting DR Mode ................................................................................................... 14-1  
14.5. Supported CD-ROM DR Command Set............................................................... 14-1  
14.5.1. Inquiry (12h)........................................................................................................ 14-1  
14.5.2. Read 10 (28h) ..................................................................................................... 14-1  
14.5.3. Read Capacity (0x25).......................................................................................... 14-1  
14.5.4. Read TOC (0x43)................................................................................................ 14-2  
14.5.5. Mode Sense/Select Page Code 0x3C................................................................. 14-2  
14.6. Reset Handling...................................................................................................... 14-2  
SDX-1100V series Ver.1.0 Table of Contents  
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SDX-1100V series Ver.1.0 Table of Contents  
1.Introduction  
1. Introduction  
1.1. About this Product Specification Manual  
This Product Specification Manual is applicable for AIT-5 drive.  
This manual provides information about the Sony SDX-1100V series Advanced Intelligent Tape Drives which is  
necessary to integrate the drives into OEM products. This manual describes the specifications, SCSI Interface,  
diagnostics, operation and installation of the Sony AIT-5 Tape Drives.  
The Sony SDX-1100V drive uses data compression to achieve high capacity and high transfer rates. Actual  
capacity and transfer rate depends on the source file type. The capacity ratings listed in the next subsection are  
based on a 246 meter tape AIT-5 cassette. The Sony SDX-1100V drive is a high capacity data storage device  
using Advanced intelligent tape (AIT) technology. The Sony SDX-1100V drive achieves high data integrity through  
read-after-write, an additional level of Error Correction Code, and other features.  
The Sony SDX-1100V drives provide MIC technology that automatically enhance reliability and performance. The  
Sony SDX-1100V drives provide read and write capability for MIC user data area.  
1.2. Introducing the Sony AIT Technology  
While magnetic storage technologies continue to push the envelope of recording density and provide higher  
capacities and transfer rates every 18 to 24 months, improvements in time to access this data have become very  
limited. Since 1990, tape recording densities have increased up to ten fold, while the time to access this data  
has increased less than two fold, creating a large mismatch between the amount of stored data and the ability to  
access it.  
This large “gap” between data access latency and area density has created a dilemma in application development  
and limited the potential to implement truly cost-effective tertiary storage solutions. Many applications  
compensated for this deficiency by incorporating multiple redundant tape drives, at higher cost, to achieve an  
acceptable level of service for their users. Sony’s new Advanced Intelligent Tape design has recognized this need  
and provided an innovative approach to solving the data latency problem while increasing capacity and data  
transfer rates.  
Traditional, older tape technologies relied mostly on conventional mechanical means, such as faster search  
speeds or an on-tape index to improve access to stored data. While improvements in electronics and magnetics  
have been the main enablers of increased capacity and transfer rates, rarely have these same technologies been  
employed to significantly improve access to data.  
Sony’s Advanced Intelligent Tape (AIT) architecture has deviated from conventional designs and employed  
electronic enhancements to significantly improve access to stored data, using a captive, non-volatile memory  
chip contained within the magnetic data cartridge. Known as Memory-In-Cassette, or MIC, this memory chip  
provides a direct and immediate connection to the tape drive’s on-board processors to enable quick media  
load, fast access to user files and provide a wealth of data about the history and current state of the data  
cartridge.  
1.3. Features of the Drive  
Major features of the Sony SDX-1100V include:  
• Capacity  
100 Gbyte typical when using 230 meter tape AIT-3 cassette (SDX3-100C)  
260 Gbyte with 2.6:1 Data Compression  
150 Gbyte typical when using 246 meter tape AIT-3Ex cassette (SDX3X-150C)  
390 Gbyte with 2.6:1 Data Compression  
200 Gbyte typical when using 246 meter tape AIT-4 cassette (SDX4-200C)  
520 Gbyte with 2.6:1 Data Compression  
400 Gbyte typical when using 246 meter tape AIT-5 cassette (SDX5-400C)  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
1-1  
1.Introduction  
1040 Gbyte with 2.6:1 Data Compression  
• Sustained transfer rate  
16 Mbyte/sec when using AIT-3 cassette  
18 Mbyte/sec when using AIT-3Ex cassette  
24 Mbyte/sec when using AIT-4 cassette and AIT-5 cassette  
• Supported Format  
AIT-3 (Read/Write)  
AIT-3Ex (Read/Write)  
AIT-4 (Read/Write)  
AIT-5 (Read/Write)  
• Not compatible with the DDS and EXABYTE format tapes  
• Burst transfer rate  
12 Mbyte/sec Asynchronous  
160 Mbyte/sec Synchronous  
• Large 96 MB Buffer Memory  
• 3.5” Standard Height, 5.25” Half Height  
• Embedded SCSI interface (Ultra 160 LVD, Single-ended or Low Voltage differential)  
• Supports Variable or Fixed record length  
• Supports SCSI Disconnection/Arbitration  
• Read After Write (RAW) On and Off capability  
• Read Retry On and Off capability  
• Frame rewrite function –AIT-3  
• Fragment rewrite function – AIT-3Ex, AIT-4 and AIT-5  
• Three levels of Error Correction Code (ECC) – AIT-3  
• Two levels of Error Correction Code (ECC) – AIT-3Ex, AIT-4 and AIT-5  
• High Speed search  
• Random read, Append write  
• MIC Support (Automatic reliability and performance enhancement.)  
• MIC Support (Read and write capability for MIC user data area.)  
• Remote-MIC Support  
• Tape Alert  
1-2  
SONY AIT-5 drive SDX-1100V series Ver. 1.0  
1.Introduction  
1.4. Reference  
Please refer to the following documents for additional information:  
1
•SCSI-2 ANSI X3.131.-1996 Small Computer Systems Interface-2 (SCSI-2).  
• SCSI Parallel Interface-2 (SPI-2) ANSI X3T10-1142D rev 20b.  
ANSI X3T9.2/86-109 (Revision 10H, or above), available through ANSI.  
• SCSI Parallel Interface-3 (SPI-3) ANSI INCITS 336-2000  
• SCSI Architecture Model-2 (SAM-2) ANSI INCITS 366-2003  
• ALDC - Adaptive Lossless Data Compression (ALDC) Algorithm;  
2
ECMA-222, available through ECMA.  
1.4.1. How to get ECMA-329 Standard Document  
You can get the ECMA-329 Standard Document file from the following URL.  
http://www.ecma-international.org/publications/standards/standard.html  
1
ANSI (American National Standard for Industry)  
2
ECMA (European Computer Manufacturers Association)  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
1-3  
1.Introduction  
This page intentionally left blank.  
1-4  
SONY AIT-5 drive SDX-1100V series Ver. 1.0  
2.Specification  
2. Specifications  
Physical, environmental and performance specifications for the SDX-1100V and SDX-1100V/R.  
2.1. Specifications  
2.1.1. Dimensions  
The SDX-1100V  
Height  
Width  
Depth  
41.2 mm (1.62 in)  
101.6 mm (4.00 in)  
155.0 mm (6.10 in)  
± 0.5 mm (0.02 in)  
± 0.5 mm (0.02 in)  
± 0.5 mm (0.02 in)  
The SDX-1100V/R  
Height  
Width  
Depth  
41.2 mm (1.62 in)  
146.0 mm (5.75 in)  
155.0 mm (6.10 in)  
± 0.5 mm (0.02 in)  
± 0.5 mm (0.02 in)  
± 0.5 mm (0.02 in)  
Note: The above dimensions do not include the front panel thickness, eject button and SCSI connector.  
_
+
7.6 0.5mm  
_
+
[0.30" 0.02"]  
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+
Height 41.2 0.5mm  
_
+
[1.62" 0.02"]  
_
+
Depth 155.0 0.5mm  
_
+
[6.10" 0.02"]  
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+
Width 101.6 0.5mm  
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+
[4.00" 0.02"]  
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+
7.4 0.6mm  
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+
[0.29" 0.02"]  
Figure 2-1: Dimensions (SDX-1100V)  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
2-1  
2.Specification  
2.1.1.1. Mounting Holes  
Figure 2-2a gives details of the mounting holes for the Sony SDX-1100V and figure 2-2b for the Sony  
SDX-1100V/R.  
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+
60.0 0.3mm  
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[2.36" 0.01"]  
_
+
21.0 0.3mm  
_
_
_
+
+
+
[0.83" 0.01"]  
90.0 0.3mm [3.54" 0.01"]  
_
+
7.4 0.6mm  
_
_
+
_
+
[0.29" 0.02"]  
+
155.0 0.5mm [6.10" 0.02"]  
_
_
+
+
9.8 0.6mm [0.39" 0.02"]  
_
_
+
+
31.0 0.3mm  
42.0 0.3mm  
_
_
+
+
[1.22" 0.01"]  
[1.65" 0.01"]  
_
_
+
+
70.0 0.3mm [2.76" 0.01"]  
Figure 2-2a: SDX-1100V Mounting Holes  
2-2  
SONY AIT-5 drive SDX-1100V series Ver. 1.0  
2.Specification  
_
+
7.0 0.5mm  
_
_
_
+
+
+
[0.28" 0.02"]  
79.2 0.3mm [3.12" 0.01"]  
_
+
8.4 0.5mm  
_
+
[0.33" 0.02"]  
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+
47.5 0.3mm  
_
_
+
_
+
79.2 0.3mm [3.12" 0.01"]  
[1.87"  
+
0.01"]  
_
_
+
+
7.6 0.5mm  
7.4 0.6mm  
_
_
_
_
+
+
+
+
155.0 0.5mm [6.10" 0.02"]  
[0.30" 0.02"]  
[0.29" 0.02"]  
_
+
9.8 0.6mm  
_
+
[0.39" 0.02"]  
_
_
+
+
70.0 0.3mm [2.76" 0.01"]  
_
_
+
31.0 0.3mm  
42.0  
+
0.3mm  
_
[1.65"+0.01"]  
_
+
[1.22" 0.01"]  
_
+
47.5 0.3mm  
_
_
_
+
+
+
79.2 0.3mm [3.12" 0.01"]  
[1.87" 0.01"]  
Figure 2-2b: SDX-1100V/R Mounting Holes  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
2-3  
2.Specification  
2.1.2. Weight  
SDX-1100V  
0.8 kg, without a cassette and a front bezel.  
1.1 kg, without a cassette and a front bezel.  
SDX-1100V/R  
2.1.3. Connectors  
The SDX-1100V has a SCSI connector with a power connector and Jumpers at the positions shown in Figure 2-3.  
All other connectors are for use by Sony’s manufacturing and service facilities only.  
Jumpers  
Figure 2-3: Connector Positions  
Power Connector  
SCSI 68 pin Connector  
2.1.3.1. SCSI Cables and Terminators  
The Single-Ended SCSI configuration and Low-Voltage-differential SCSI configuration are supported by  
SDX-1100V, and SDX-1100V/R The hardware specification of this interface can be found in Clause 3. Physical  
Characteristics, of the X3T10/1142D (SCSI Parallel Interface2) standard. Only unshielded connectors are  
supported. Possible cable and connector sources are listed below. This does not imply that these are the only  
sources for SCSI accessories.  
Note: When using high speed data transfer with the SDX-1100V it is recommended that total length of the SCSI  
data cable not exceeded 1.5m for Single Ended SCSI configuration. As for Low-Voltage-differential SCSI  
configuration, less than 12m is recommended.  
Cable  
30 AWG Ribbon  
Hitachi UL 20848 (or equivalent)  
Connector  
AMP 1-786090-7 (or equivalent)  
2.2. Environmental Specifications  
The specifications which apply when media is present may be different than these.  
2.2.1. Temperature and Humidity Range  
Temperature  
Operating  
Non-Operating(mech.)  
Non-Operating(tape)  
5 ºC to 40 ºC (ΔT < 10 ºC/h)  
-40 ºC to 70 ºC (ΔT < 20 ºC/h)  
-40 ºC to 45 ºC (ΔT < 20 ºC/h)  
Humidity  
Operating  
20 to 80% RH, non-condensing  
Maximum wet bulb temperature = 26 ºC  
5 to 95%RH(ΔRH<30%/h)  
Maximum wet bulb temperature = 45 ºC  
20 to 80%RH(ΔRH<30%/h)  
Non-operating (mech.)  
Non-operating (tape)  
.
2-4  
SONY AIT-5 drive SDX-1100V series Ver. 1.0  
2.Specification  
2.2.2. Altitude  
Operating  
0 to 10,000 feet  
2.2.3. Suspended Particulate  
3
Operating  
Less than 150 microgram/m  
Based Sampling period 24 hours  
2.2.4. Vibration  
Operating  
Swept Sine 5 to 500Hz, @0.25G Peak 1 Octave/min.  
3 axis, 3 directions  
Non-operating  
Swept Sine 5 to 500Hz, @ 0.5G Peak 1 Octave/min.  
3 axis, 3 directions  
2.2.5. Shock  
Operating  
No Data Loss  
Half Sine  
Performance  
5 G Peak 3 ms  
3 axes, 3 directions  
*Interval 10 seconds  
Non-operating  
No Device Damage  
Half Sine  
90 G Peak 3 ms  
(30 G Peak 11 ms)  
3 axes, 3 directions  
*
Interval 10 seconds  
2.2.6. Acoustic Noise  
The ambient noise level is no greater than 25 dB (A). The sound-meter on (A) scale is located 1m in front of the  
center of the drive front panel. (A): A curve weight  
Streaming Write/Read  
Insert/Eject  
35dB(A)  
60dB(A)  
2.2.7. EMC  
EMI/EMS  
Radiated Emissions /  
EN 55022 / 94 + EN 55022 A1 / 95 class B  
Conducted noise  
Emissions  
EMS  
ESD  
Discharge Voltage  
(Front Panel Only,  
integrated product)  
Less than 15kV: No operation failure  
Less than 20kV: No drive damage  
2.2.8. Orientation  
The SDX-1100V can be installed in three different mounting positions as shown in the figure below. Each position  
has a maximum tolerance of ± 10 degrees.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
2-5  
2.Specification  
10 10  
10 10  
10  
10  
10  
10  
Figure 2-4: Mounting Attitude and Tolerance  
2.3. Performance Specification  
The data capacity, data transfer rate and data reliability specifications this chapter require the media to conform to  
the AIT-3, AIT-3Ex, AIT-4 and AIT-5 Media Specification and also require the drive and media to remain within their  
respective operating and non-operating environmental specifications. The specifications below also assume that  
the C3 ECC frame (AIT-3) or C3 ECC fragment (AIT-3Ex, AIT-4 and AIT-5) is generated on writing and used as  
necessary on reading, and further assumes that read-after-write rewrites are used as necessary on writing.  
2.3.1. Data Capacity  
The SDX-1100V includes a data compression capability. When data compression is enabled the drive capacity can  
increase from 2 times to 3 times. The efficiency of the data compression depends on the actual data that is being  
compressed and cannot be predicted precisely prior to compression.  
Format  
Native  
Capacity  
AIT-3 Standard Format  
100.0 Gbyte typical When using 230 meter tape AIT-3 cassette (SDX3-100C)  
Format  
Native  
Capacity  
AIT-3Ex Standard Format  
150.0 Gbyte typical When using 246 meter tape AIT-3Ex cassette (SDX3X-150C)  
Format  
Native  
Capacity  
AIT-4 Standard Format  
200.0 Gbyte typical When using 246 meter tape AIT-4 cassette (SDX4-200C)  
Format  
Native  
Capacity  
AIT-5 Standard Format  
400.0 Gbyte typical When using 246 meter tape AIT-5 cassette (SDX5-400C)  
2-6  
SONY AIT-5 drive SDX-1100V series Ver. 1.0  
2.Specification  
2.3.2. Data transfer Rate  
2.3.2.1. Sustained Data Transfer Rate to and from the Tape  
The sustained transfer rate to and from the tape is 24Mbyte per second with AIT-4 and AIT-5 cassette, 18Mbyte  
per second with AIT-3Ex cassette, 16Mbyte per second with AIT-3 cassette. For this sustained rate to be achieved,  
the drive must be streaming.  
2.3.2.2. Burst Transfer Rate to and from the SCSI Bus  
The SDX-1100V will transmit and receive data bursts to and from the SCSI bus at a maximum burst rate of  
12Mbyte per second, using Ultra 160 asynchronous transfers and maximum of 160Mbyte per second, using  
Ultra160 synchronous transfers.  
2.3.3. Initialize Time  
Initialize Time means the period from the time the drive is powered on to the time when the drive is ready and  
waiting for a SCSI command such as INQUIRY or TEST UNIT READY. Initialize Time is less than 7 seconds.  
The drive will respond with BUSY status until the completion of the Initialize Time. The Initialize Time does not  
include the time necessary for drive diagnostics to complete and the drive to become ready for tape insertion.  
2.3.4. Load Time  
Load Time means the period from the time when the operator inserts a cassette into the drive to the time  
when the drive is ready. The data in the below table represents the average time for SDX-1100V. The time it  
may take for retrying is not reflected here.  
SDX3-100C (230 m)  
SDX3X-150C (246 m)  
SDX4-200C (246 m)  
SDX5-400C (246 m)  
Load Time  
40 sec  
14 sec  
14 sec  
14 sec  
2.3.5. Unload Time  
Unload Time means the period from the beginning of the unload sequence caused by Unload Command or Eject  
button to the time when a cassette is ejected from the slot. Unload Time does not include Rewind time. The data in  
the below table represents the average time for SDX-1100V. The time it may take for retrying is not reflected here.  
SDX3-100C (230 m)  
SDX3X-150C (246 m)  
SDX4-200C (246 m)  
SDX5-400C (246 m)  
Unload Time  
24 sec  
24 sec  
24 sec  
24 sec  
2.3.6. Search Time  
Search Time means the period for the drive to find the position that is required by a command. This time also  
depends on the tape length and the position of the head along the tape. The data in the below table represents the  
average time for SDX-1100V. The time it may take for retrying is not reflected here.  
SDX3-100C (230 m)  
SDX3X-150C (246 m)  
SDX4-200C (246 m)  
SDX5-400C (246 m)  
Search Time  
130 sec  
130 sec  
130 sec  
130 sec  
2.3.7. Rewind Time  
Rewind Time means the period from the beginning to the end of rewinding sequence. This value depends on the  
tape length and the position of the head along the tape. The data in the below table represents the average  
time for SDX-1100V. The time it may take for retrying is not reflected here.  
SDX3-100C (230 m)  
SDX3X-150C (246 m)  
SDX4-200C (246 m)  
SDX5-400C (246 m)  
Rewind Time  
105 sec  
115 sec  
115 sec  
115 sec  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
2-7  
2.Specification  
2.3.8. Long Erase Time  
Long Erase Time means the period from the beginning of the Erase (long) sequence caused by Erase Command  
at BOT. The data in the below table represents the average time for SDX-1100V. The time it may take for retrying  
is not reflected here.  
SDX3-100C (230 m)  
SDX3X-150C (246 m)  
SDX4-200C (246 m)  
SDX5-400C (246 m)  
Long Erase Time  
2 hrs  
2.5 hrs  
2.5 hrs  
5 hrs  
2.3.9. Error Rate  
The un-correctable bit error rate is expected to be less than 1 in 10 to the 17th.  
2.3.10. Definition of Failure  
A failure is defined as any permanent manufacture of the drive that prevents the user from retrieving data from  
tape. This includes failure to power up, failure to unload or eject a cassette, or failure to write and read data to and  
from the tape, providing that both the drive and tape are being used within specification.  
Faults are not considered failures when they are related to operator error mishandling and abuse, system-related  
faults (cabling problems unsupported systems, operating software and so on) no trouble found, and transportation  
damage.  
2.3.11. Mean Time Between Failures  
The Mean Time Between Failures (MTBF) for the SDX-1100V is 400,000 power-on hours, assuming a duty cycle  
of 100%, where:  
Tape Motion Time  
DutyCycle =  
×100  
PowerOn Time  
2.3.12. Mean Time to Repair  
The Mean Time To Repair (MTTR) of the SDX-1100V is 30 minutes. Since at the field level the entire drive is  
considered a Field Replaceable Unit (FRU) the time to replace the drive with a new one is less that 30 minutes.  
2.3.13. Component Life  
The specified life of the SDX-1100V is 5 years average.  
2.3.14. Durability  
The durability of the components in the SDX-1100V will exceed the number of operations listed on the following  
table:  
Start/Stop  
Reposition  
Thread/Unthread  
Load/Eject  
400,000 times  
3,000,000 times  
100,000 times  
100,000 times  
2-8  
SONY AIT-5 drive SDX-1100V series Ver. 1.0  
2.Specification  
2.4. Safety  
The SDX-1100V conforms to the following safety standards:  
UL/cUL  
UL60950  
CE (LVD)  
CE (EMC)  
C-Tick (EMC)  
EN60950-1  
EN55024 + EN55022: Class B  
EN55022: Class B  
AS/NZS CISPR22: Class B  
CISPR22 + CISPR24  
CISPR22  
MIC  
RPC/DoC  
IEC60950-1  
CB report  
IEC60950-1  
2.4.1. Conditions of Acceptability  
The SDX-1100V is for use only in equipment where the suitability of the combination has been determined by an  
appropriate certification organization (for example, Underwriters Laboratories, Inc. or the Canadian Standards  
Association in North America, and the British Standards Institution or Verband Deutscher Elektrotechniker in  
Europe). Other considerations include the following:  
1. An enclosure must be supplied to limit the operator’s access to live parts, to provide system stability, and to  
furnish the drive with the necessary grounding integrity.  
2. The necessary voltage supplies must be provided. These supplies are Extra Low Voltage SEC for UL and  
CSA, or Safety Extra Low Voltage for BSI, VDE, and so on, of +5V and +12V DC.  
2.5. Installation Requirements  
Note: Do not move the drive while it is operating. It may cause malfunction.  
2.5.1. Power Requirements  
Voltage  
Max Ripple  
Current  
Typical  
Maximum  
5V ± 5%  
12V ± 10%  
100 mV p-p  
150 mV p-p  
1.7A  
0.87A  
2.5A  
3.0A  
* exclude SCSI terminator power  
5V  
4.75V  
T
12V  
0V  
0V  
10.8V  
-300 ms < T < 300 ms  
Figure 2-5: Power-up Sequence  
Note: Voltage has to increase constantly during Power-up until Maximum is reached.  
Do not turn off the drive while the tape is in the drive.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
2-9  
2.Specification  
2.6. Data Compression  
The tape capacity is increased by compressing data prior to writing it to the tape. Data compression is a well  
established technology for reducing the number of bits used to represent data in order to improve data transfer  
rate as well as reduce the amount of storage space consumed by the data. The compression ratio depends on the  
source file type. The SDX-1100V uses the ALDC Data Compression algorithm. ALDC is ECMA standard data  
compression algorithm. (ECMA-222) The Data Compression control page allows the host computer to enable data  
compression and decompression and also configure the way in which the drive responds to  
compressed/uncompressed data boundaries on the tape. The AIT-3, AIT-3Ex, AIT-4 and AIT-5 Format allows both  
compressed and uncompressed data to reside on the same tape.  
The Sony SDX-1100V has a DIP switch to disable the Data Compression/ Decompression. After power-on reset  
with this DIP switch set, both data compression and data decompression are disabled However, a MODE SELECT  
command can override the setting of this DIP switch. After power-on reset without this DIP switch set, both data  
compression and data decompression are enabled. (See clause 3.1.4)  
2-10  
SONY AIT-5 drive SDX-1100V series Ver. 1.0  
3.Installation  
3. Installation  
3.1. Installation Guide  
This Product Specification Manual is applicable for AIT-5 drive.  
Dip switch  
Jumpers  
SCSI 68 pin Connector  
Power Connector  
Figure 3-1: DIP switch & Connector  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
3-1  
3.Installation  
1 DR (Desaster Recovery) Mode  
2 Emulation Mode  
3 AIT Library Interface Mode  
4 Reserved  
ON  
5 Terminator Power (ON)  
6 Periodic Cleaning Req (ON)  
7 DC Control-1  
OFF  
1
2
3
4
5
6
7
8
8 DC Control-2  
Figure 3-2: DIP Switch Positions  
Table 3-1: Drive Mode  
DIP SW  
1
2
3
ON  
4
OFF  
MODE  
Normal  
OFF OFF  
ON  
OFF  
OFF OFF  
OFF OFF OFF  
ON OFF OFF  
ON OFF  
DR Mode  
SDX-900V Emulation Mode  
Library Mode  
Table 3-2: Periodic Cleaning Request (Refer to 4.6.1.2)  
DIP SW 6  
OFF  
Definition  
Disable Periodic Cleaning Request  
Enable Periodic Cleaning Request  
ON  
3.1.1. SCSI ID Number Jumper  
The SCSI ID number of the SDX-1100V is selected by the SCSI ID number jumpers. The figure below shows the  
jumper configuration for each of the possible SCSI IDs.  
SCSI  
ID3 ID2 ID1 ID0  
0
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
:
:
:
:
:
:
:
:
|
|
|
|
|
:
:
:
:
|
|
|
|
:
:
:
:
|
|
|
|
:
:
|
:
|
:
|
:
|
:
|
:
|
:
|
:
|
:
|
Parity Disable  
No Connection  
ID3  
|
:
:
|
ID2  
ID1  
|
ID0  
:
:
|
|
:
:
|
|
|
|
|
Figure 3-3: Jumper positions  
: = OPEN  
| = CLOSED  
Jumper not installed  
Jumper installed  
3.1.2. Termination Power Switch  
Position 5 of DIP switch is used to set whether SDX-1100V provides the termination power to pin 17,18,51,52 on  
SCSI bus, or not.  
3-2  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
3.Installation  
3.1.3. Parity Disable Jumper  
Parity check function can be disabled by Jumper. Parity check is disabled while left end jumper is installed. Parity  
generate function is always enabled.  
Parity  
Setting  
Disable  
Enable  
|
:
: = OPEN  
| = CLOSED  
Jumper not installed  
Jumper installed  
3.1.4. Data Compression ON Switch  
Data compression can be selected by DIP switch.  
Table 3-3: Data Compression Switches  
DC Control-2 Definition  
DC Control-1  
OFF  
OFF  
Compression disabled at power-on. The host is allowed to control  
compression.  
OFF  
ON  
ON  
Compression disabled at power-on. The host is not allowed to  
control compression.  
Compression enabled at power-on. The host is allowed to control  
compression.  
Compression enabled at power-on. The host is not allowed to  
control compression.  
OFF  
ON  
ON  
3.1.5. Power Connector  
The power connector is illustrated as Figure 3-4.  
4 3 2 1  
5V GND GND 12V  
Figure 3-4: Power Connector  
3.1.6. SCSI 68 pin Connector  
Figure 3-5 illustrates SCSI 68 pin connector, and table 3-4 shows the assignments for the pins of the connector.  
Pin 34  
1
Pin 68  
35  
Figure 3-5: Non-shielded SCSI Device Connector  
SDX-1100V supports both Low-Voltage-Differential SCSI configuration as shown table 3-4 and Single-Ended SCSI  
configuration as shown table 3-5. SDX-1100V detects and switches SCSI configuration between  
Low-Voltage-Differential and single-ended modes by monitoring DIFFSENS signal assigned pin 16 in SCSI bus.  
(Refer to table 3-4)  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
3-3  
3.Installation  
Table 3-4: SDX-1100V SCSI Signals  
(Low-Voltage-Differential Type BUS P Cable Signal Assignment)  
Signal Name  
Cable Conductor Number  
Signal Name  
-DB(12)  
-DB(13)  
-DB(14)  
-DB(15)  
-DB(P1)  
-DB(0)  
-DB(1)  
-DB(2)  
-DB(3)  
-DB(4)  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
1
2
3
4
5
6
7
8
+DB(12)  
+DB(13)  
+DB(14)  
+DB(15)  
+DB(P1)  
+DB(0)  
+DB(1)  
+DB(2)  
+DB(3)  
+DB(4)  
+DB(5)  
+DB(6)  
+DB(7)  
+DB(P)  
GROUND  
DIFFSENS  
TERMPWR  
TERMPWR  
RESERVED  
GROUND  
+ATN  
GROUND  
+BSY  
+ACK  
+RST  
+MSG  
+SEL  
+C/D  
+REQ  
+I/O  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
-DB(5)  
-DB(6)  
-DB(7)  
-DB(P)  
GROUND  
GROUND  
TERMPWR  
TERMPWR  
RESERVED  
GROUND  
-ATN  
GROUND  
-BSY  
-ACK  
-RST  
-MSG  
-SEL  
-C/D  
-REQ  
-I/O  
-DB(8)  
-DB(9)  
-DB(10)  
-DB(11)  
+DB(8)  
+DB(9)  
+DB(10)  
+DB(11)  
3-4  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
3.Installation  
Table 3-5: SDX-1100V SCSI Signals (Single-Ended Type BUS P Cable Signal Assignment)  
Signal Name  
-DB(12)  
-DB(13)  
-DB(14)  
-DB(15)  
-DB(P1)  
-DB(0)  
Cable Conductor Number  
Signal Name  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
1
2
3
4
5
6
7
8
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
TERMPWR  
TERMPWR  
RESERVED  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
GROUND  
-DB(1)  
-DB(2)  
-DB(3)  
-DB(4)  
-DB(5)  
-DB(6)  
-DB(7)  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
-DB(P)  
GROUND  
GROUND  
TERMPWR  
TERMPWR  
RESERVED  
GROUND  
-ATN  
GROUND  
-BSY  
-ACK  
-RST  
-MSG  
-SEL  
-C/D  
-REQ  
-I/O  
-DB(8)  
-DB(9)  
-DB(10)  
-DB(11)  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
3-5  
3.Installation  
3.1.7. Attaching and Removing the Dust Cover  
3.1.7.1. Attaching the Dust Cover  
(1) Align the dust cover’s hinge clips (one on each side) with the pins of the drive bezel.  
• The dust cover should be positioned so that the six magnets on the cover’s back face the drive bezel.  
• Holding the dust cover at an angle as shown in the figure below, set the hinge clips on top of the bezel  
pins, positioning them so that they bracket the pins.  
(2) Press down at an angle on each side in turn until you hear the hinge clips click into place.  
Caution:  
Do not press the dust cover in horizontally from the side. Doing so could cause the dust cover to break.  
(3) Close the dust cover.  
This completes attachment of the dust cover.  
3-6  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
3.Installation  
3.1.7.2. Removing the Dust Cover  
(1) Open the dust cover.  
(2) Holding the dust cover at both corners, carefully raise the dust cover.  
The dust cover hinge clips and drive bezel pins uncouple.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
3-7  
3.Installation  
This page intentionally left blank.  
3-8  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
4.Operation  
4. Operation  
4.1. Summary of LED Indications  
The drive has 3 LEDs. Each LED shows "Tape Motion", "Cleaning Request", and "Replace Tape" as defined.  
"Tape Motion" means to show the tape motion in the drive.  
"Cleaning Request" to be on means that CLEANING is required.  
"Replace Tape" to be on means that the tape needs to be replaced. It should be on when a medium error  
occurred.  
All of the three LEDs flash fast simultaneously when the drive is in malfunction.  
The following table shows the meaning of each LED indications:  
Table 4-1: Meaning of each LED indications  
LED  
Tape Motion  
No Tape  
Tape Loaded  
Cleaning Request  
Cleaning is Not Necessary  
Cleaning Request  
Replace Tape  
No Media Error Occurred  
Media Error Occurred  
Off  
On  
Flash Slowly  
Tape Access in Progress Cleaning is Not Completed  
(Write/Read)  
Flash Fast  
Tape Access in Progress  
(Others)  
All LED Flash Fast  
H/w Error Occurred  
Flash Fast (0.3sec on/ 0.3sec off)  
0.3 sec  
Flash Slowly (0.9sec on/ 0.3sec off)  
0.9sec  
0.3sec  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
4-1  
4.Operation  
4.2. Operator Action  
4.2.1. Powering up the Drive  
After the initial installation of the drive has been verified, power can be applied to the unit. The +12V and +5V  
power must be applied simultaneously. (See Figure 2-5) The drive will execute a power-up diagnostic and then  
comes ready.  
Once the tape has been loaded the drive sends a CHECK CONDITION response on receipt of the next SCSI  
command from the host. The UNIT ATTENTION key is set in the returned REQUEST SENSE data to indicate that  
the tape may have been changed. (Sense Key/ASC/ASCQ = 06/28/00)  
4.2.2. Inserting Cassettes  
The operator inserts a cassette into the slot on the front panel. As the cassette is inserted, the drive takes it and  
automatically loads it into the drive mechanism. The drive performs a tape load sequence as described in clause  
4.3.1  
4.2.3. Removing Cassettes  
The cassette can be removed from the drive either in response to a SCSI UNLOAD command, or by pressing the  
Eject button. The operator uses the Eject button to initiate the unload sequence (see clause 4.3.2). The  
mechanism rewinds the tape to Beginning of Media (BOM), unthreads it, and ejects the cassette from the slot.  
The operation of the Eject button is disabled if the host has previously sent a SCSI PREVENT ALLOW MEDIA  
REMOVAL command with prevent bit set to one. In this case, pressing the Eject button has no effect, and  
does not initiate an Unload sequence. The operation of the Eject button returns to normal operation following  
receipt of an PREVENT ALLOW MEDIA REMOVAL command with prevent bit clear.  
4.2.4. Hard Reset Hole  
Hard reset hole  
In case of emergency, you can immediately reset the drive itself by pushing the switch in the “Hard Reset Hole”  
with the tip of a pin. However, there is a risk of losing data upon execution of this operation in the Write or Read  
mode. The hardware reset operation is only for manufacturing and repair purposes.  
4.2.5. Write-Protecting Cassettes  
The cassettes can be write-protected by sliding the tab on the back of the cassette open. In this state, data can be  
read from the tape but not written to it.  
4-2  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
4.Operation  
AIT-3/3Ex/4/5  
4.3. Internal Function  
4.3.1. The Load Sequence  
During load sequence, the following occurs:  
(1) The drive mechanism accepts the cassette and threads the tape. The tape is then moved to  
Beginning-of-Tape(BOT). If the format is not AIT-3, AIT-3Ex, AIT-4 and AIT-5, the drive rewinds the tape to  
BOT and awaits an UNLOAD command.  
(2) Finally the drive goes on-line.  
4.3.2. The Unload Sequence  
The drive will always write any buffered data out to tape followed by an EOD prior to initiating the Unload  
sequence.  
During this sequence the tape is rewound to BOT and, if the tape is write-enabled, the copy of the tape log held in  
RAM is written back to tape. The tape is then rewound to BOM and the tape unthreaded from the mechanism. At  
this stage the tape is either retained in the drive or ejected, depending on media removal is enabled by the  
Prevent Allow Media Removal command.  
4.3.3. Power-Fail or SCSI Reset Handling  
If there is a power-fail, the drive performs the following actions, and reverts to its default configuration:  
(1) The drive remains positioned at the point where the power-fail or SCSI Reset occurred.  
(2) It executes the Power-Up sequence of self-tests. (When power is restored.)  
(3) The drive returns a CHECK CONDITION status for the first command after the power-fail or Reset. The next  
command from the initiator should be a REQUEST SENSE. The drive will return sense data including a  
sense key that will indicate that the drive has been reset. (Sense Key / ASC / ASCQ = 06/29/00)  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
4-3  
4.Operation  
4.3.4. Diagnostic and Normal Status Displays  
This clause describes LED displays while the drive is starting up. When the power is turned on, the drive will go  
through its diagnostics to reach normal status. When a failure is detected during diagnostics, the LEDs show that  
the drive is out of order and needs to be repaired.  
4.3.4.1. Diagnostic Status Display  
The drive starts with its Diagnostic function. This is made up of the Front Panel Test and the Kernel Test.  
Front Panel Test  
LED display sequence:  
TAPE  
CLEANING  
REPLACE  
MOTION  
REQUEST  
TAPE  
0.3sec  
0.3sec  
0.3sec  
0.3sec  
0.3sec  
0.3sec  
0.3sec  
0.3sec  
0.3sec  
0.3sec  
0.3sec  
on  
-
on  
-
on  
-
-
on  
-
-
on  
-
on  
-
-
on  
-
-
on  
-
-
on  
-
on  
-
-
-
on  
-
-
on  
-
Front Panel Test  
Kernel Test  
on  
This function is for checking TAPE MOTION, CLEANING REQUEST and REPLACE TAPE LEDs and the related  
circuits. No errors can be generated as this test is only for operator verification of indicator operation.  
Kernel Test  
After the Front Panel Test, the drive checks its internal units. When a Diagnostic error occurs, the drive must be  
powered off. The drive will not work and should be checked or repaired immediately.  
The purpose of the diagnostic is to test the drive electronics for functionality. If the diagnostic request comes from  
the host through SCSI, then the results are reported through SCSI.  
4.3.4.2. Normal Status Display  
After the Diagnostic Display, when no failures are detected, the drive is in the Normal Status. The LEDs show  
various Normal Status (No Error) indications as shown in the table below:  
4-4  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
4.Operation  
Table 4-2: Normal LED indications  
LED  
Tape Motion  
No Tape  
Tape Loaded  
Cleaning Request  
Cleaning is Not Necessary  
Cleaning Request  
Replace Tape  
No Media Error Occurred  
Media Error Occurred  
Off  
On  
Flash Slowly  
Tape Access in Progress Cleaning is Not Completed  
(Write/Read)  
Flash Fast  
Tape Access in Progress  
(Others)  
All LED Flash Fast  
H/w Error Occurred  
4.4. Tape Alert  
1. Tape Alert is a new specification for tape drive and library diagnostics. With this specification, any storage  
software application can access detailed device diagnostic information and interpret the information in a  
standard way.  
2. Tape Alert information shall be accessed using LOG SENSE page 2Eh. Tape Alert configuration shall be  
performed using MODE SELECT page 1Ch. The MODE SENSE and MODE SELECT configuration of the  
Tape Alert interface is compatible with the information exceptions control page (1Ch). The application client  
shall first check the tape drive to determine whether it supports the Tape Alert log page (0x2Eh). The default  
application client access to the Tape Alert log page shall be performed using a polling method, with the page  
control bits in the LOG SENSE command set to 00h.  
3. At minimum, the Tape Alert log page shall be read from the tape drive/autoloader device for the following:  
a. At the beginning of a Write/read job, even if the media is not loaded  
b. Immediately after an unrecoverable error during the write/read job  
c. At the end of each tape when the write/read job spans multiple tapes. If the tape is to be ejected then the  
log page shall be read before the tape cartridge is ejected  
d. At the end of a write/read job  
4. The application client may also poll the Tape Alert log page at regular intervals (e.g. every 60 seconds) while  
the tape drive is idle. The application client may use the Tape Alert mode page (1Ch) to configure other  
access methods, depending on what options are supported by the tape drive.  
5. Each time the application client reads the Tape Alert log page, it shall check all 64 flags to discover which are  
set (there may be more than one). The definitions of the 64 flags are device type specific. There is one  
definition for tape drive/autoloader devices, and a different definition for stand-alone changer devices (in  
libraries). For each flag set, the application client shall communicate the defined error message and severity  
for that flag to the user and log it. If multiple flags are set simultaneously, they shall be displayed together in  
ascending order of severity. The information read in the Tape Alert flags shall not in itself cause the application  
client to stop a current backup or restore operation.  
4.5. Tape Format  
The drive is an implementation of the Advanced Intelligent Tape format, a standard developed by Sony for 8mm  
data storage drives.  
AIT-3  
- C1,C2, first and second level Error Correction Code, providing correction for random and Burst Symbol errors.  
- C3 ECC, third level Error Correction Code, providing correction across frames within groups  
AIT-3Ex, AIT-4, AIT-5  
- C1, first level Error Correction Code, providing correction for random and Burst Symbol errors.  
- C3 ECC, third level Error Correction Code, providing correction across frames within groups  
- Read-After-Write, where data is verified immediately after it is written and re-written if there is any error.  
- Randomizer, to reduce inter-symbol interference.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
4-5  
4.Operation  
4.6. Maintenance, Troubleshooting and Service  
4.6.1. Head Cleaning  
In case of SDX-1100V,a cleaning function which prevents and recovers from head contamination is built in the  
drive. However, to keep optimum Read/Write performance, cleaning cassette is recommended to use.  
4.6.1.1. Message When Cleaning Cassette is Necessary  
When drive displays cleaning cassette requirement, (Cleaning Request LED is on or in case of SCSI, CLN bit is  
set at Request Sense.) use specified cleaning cassette (model name: SDX5-CL)  
4.6.1.2. The condition of Cleaning Request  
Cleaning Request is required under the Condition of (1) and (2).  
(1) Every 168 hours (7days x 24hours) of operation when Periodic Cleaning Request of DIP switch is On .  
(2) When the rate of Rewrite/Reread is high.  
4.6.1.3. Usage of Cleaning Cassette  
(1) Drive displays cleaning cassette requirement.  
(2) When specified cleaning cassette is inserted, automatic cleaning operation starts and when it’s over, the  
cassette is ejected.  
(3) One cleaning cassette can be used approximately 50 times in average.  
(4) When the cleaning cassette is not ejected without doing cleaning, it is possible that there were no more  
cleaning tape left. Since cleaning tape cannot be used twice, please insert new cleaning cassette in this  
case.  
(5) Cleaning casette can be inserted in other drives or consumer 8 mm drives, but you cannot expect good  
effect.  
(6) The drive will not eject cleaning cassette for consumer drives or for any other format. “Cleaning is Not  
Completed” is indicated by the Cleaning Request LED.  
4.6.2. Troubleshooting Guide  
Problems encountered while operating the Sony SDX-1100V tape drive fall into two categories: Operational  
problems and Read/Write problems.  
Operational problems include any conditions that prevent the tape drive from operating. Operational problems  
usually are discovered the first time the drive is installed on a system or when the system configuration is changed  
or physically moved.  
Read/Write problems include conditions that effect the transfer of data to and from the tape drive. Commands such  
as REWIND, REQUEST SENSE and UNLOAD perform normally but data transfers fail.  
The following clauses describe the recommended procedures for solving operational and read/write problems.  
4.6.2.1. Operational Problems  
The tape drive will not accept a tape cartridge.  
Withdraw the tape cassette and turn the power to drive off, wait 5 seconds, then back on. Observe the drive for a  
normal power up sequence (see clause 4.3.4). If the LEDs do not light, check the power supply and power cable  
connection. If the drive completes the power on sequence normally but still won’t accept the tape cassette, the  
drive may be defective.  
A tape may already be in the drive. Tape LED is on. Press EJECT to remove the first tape. The power has been  
removed from the drive with a tape loaded. When the power is restored to the drive, it will detect the tape and  
rewind the tape to BOT. Press EJECT remove the cassette.  
4-6  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
4.Operation  
A tape is in the drive and will not eject.  
If the SCSI command PREVENT ALLOW MEDIA REMOVAL (with Prevent bit set to one) has been sent to the  
drive, the cartridge will be retained in the drive even after an UNLOAD command. The EJECT button is also  
disabled. Send an PREVENT ALLOW MEDIA REMOVAL (with prevent bit clear) command, issue a SCSI bus  
reset, or power the drive off and back on to override this condition.  
If Tape is still in the drive after following the above procedure. the drive has a serious problem and should be  
returned to Sony for repair with the tape in place.  
Note: If it is absolutely mandatory that the tape cassette be removed prior to returning the drive for repair the  
following Emergency Cassette Removal procedure should be followed:  
Caution: This procedure should only be attempted by a mechanically qualified person and will probably result in  
the tape being unusable. Do not proceed if further damage to the tape drive would be done.  
Reel motor  
Loading motor  
Photo 1: Emergency Tape Removal Procedure  
Emergency Cassette Removal Procedure  
1. Remove the drive from the chassis or enclosure to allow access to the bottom of the drive.  
2. Remove the drive’s top cover.  
3. Locate the small opening in the bottom of the drive and insert the tip of a precision screwdriver so that the  
Loading motor shaft can be rotated.  
4. Rotate the motor shaft clockwise to bring the threading mechanism back to the initial position.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
4-7  
4.Operation  
A
Tape guide surface  
Tape guide surface  
C
C
Cartridge  
B
Detail A  
Photo 2: The Initial Position of the Threading Mechanism  
Caution:  
Stop rotating the motor shaft immediately, when the guide B (see detail A of Photo 2) gets to the area  
below the line C-C (This line is defined by 2 circular tape guide surfaces of the cartridge).  
Otherwise the gear of the drive can be damaged.  
5. Before manual eject procedure, tape slack must be removed in order to prevent tape damage. Rotate the  
gear mechanism located on the bottom of the drive counterclockwise to tighten the tape.  
6. After the tape slack has been removed, continue to turn the Loading moter shaft located on the bottom of the  
drive clockwise by a precision screwdriver until the tape cartridge is lifted out of the drive mechanism and is  
ejected.  
7. Return the drive to Sony for repair.  
4-8  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
4.Operation  
The drive powers up properly and loads and unloads tapes but will not respond to any SCSI commands.  
(A) If SCSI bus reset does not cause the drive to reset (same as power-on self test):  
- Check the SCSI cable connectors  
- Check SCSI cable pin one is aligned with the SCSI connector pin one  
- Check for a broken cable or defective connector  
- Try another known good SCSI device in the same location  
(B) If SCSI bus reset causes the drive to reset then the problem is with the SCSI bus addressing or termination.  
- Check that the SCSI bus ID jumper is set for the proper address (see clause 3.1.1)  
- Check SCSI bus termination. The two SCSI devices at the ends of the bus should be terminated. No  
other units should have terminators installed  
Note: The strength of the SCSI bus signals can be affected if too many terminators are installed (Signal drivers  
can be damaged as well)  
4.6.2.2. Read/Write Problems  
To prevent read/write errors, follow the cleaning recommendation in clause 4.6.1 If a read/write error occurs, a  
combination of the following steps should correct the problem.  
- Remove the tape.  
- Clean the drive with the AIT cleaning cartridge.  
- Load a new tape in the drive.  
- Retry the operation.  
Note: If these steps do not correct the problem the drive may be defective and should be returned to Sony for  
service.  
4.6.2.3. Replace Tape  
When Media Error occur drive will indicate that tape is bad by turning on the Replace Tape LED. If this condition  
occurs, a combination of the following steps should correct the problem.  
- Remove the tape.  
- Clean the drive with the AIT cleaning cartridge.  
- Load a new tape in the drive.  
- Retry the operation.  
Note: If these steps do not correct the problem the drive may be defective and should be returned to Sony for  
service.  
4.6.2.4. Media Warning  
When a Media Warning threshold is exceeded the drive will indicate that the tape is bad by flashing the Replace  
Tape LED MEW (Media Warning) bit is 1. The indicator will be on for 0.9 seconds, off for 0.3 seconds. The Tape  
Motion and Cleaning Request LEDs will operate normally. If this occurs, the data on the cassette should be copied  
onto a new one and the old cassette discarded. This status is cleared by unloading the cassette.  
4.6.3. Clearance for Service  
All servicing is performed only after removal of the drive from is mounting. It is recommended that in mounting the  
drive into a chassis provisions should be made to allow easy access to the mounting screws (see Figure 2-2).  
4.6.4. Packaging for Return to Sony  
The drive should be returned in its original packaging. Sony will not take responsibility for shipping damage  
caused to an improperly packaged drive.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
4-9  
4.Operation  
This page intentionally left blank.  
4-10  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
5.SCSI Interface  
5. SCSI Interface  
5.1. Introduction  
The Sony SDX-1100V uses the SCSI interface to connect to the host system. The Small Computer System  
Interface (SCSI) is an industry standard interface, approved by the American National Standards Institute (ANSI).  
It is recommended that this document be used along with the ANSI standard document. The ANSI specification  
defines the interface in general while this document describes the specific implementation for this unit. The SCSI  
documents, listed in detail in clause 1.2, offer the information required to integrate this unit with SCSI-compatible  
computer systems. This clause includes four sub-clauses:  
• Introduction  
• SCSI Bus Operation  
• SCSI Messages  
• SCSI Status  
Note: The details of each SCSI Command are covered in Section 6.  
The Introduction provides general, high-level information. For the hardware description and the installation  
requirements, see Section 2.The SCSI protocol supported by the unit are covered in the Bus Operation, Message,  
and Status clauses.  
5.1.1. Overview of the SCSI Interface  
The SCSI implementation provides the unit with a standard set of features and functions. These include:  
• Asynchronous and Synchronous communication modes  
• Single-ended / Differential Configurations  
• Full implementation of Mandatory commands  
• Implementation of most sequential non-Mandatory commands  
Ultra160 SCSI Interface  
i.  
ii.  
Cyclic Redundancy Check (CRC)  
Double Transition Clocking (DT)  
iii. Domain Validation  
5.1.2. Supported Messages  
The following messages are supported: (alphabetic order)  
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Abort  
Bus Device Reset  
Command Complete  
Disconnect  
Extended Message - Synchronous Data Transfer Request  
Extended Message - Wide Data Transfer Request  
Extended Message - Parallel Protocol Request  
Identify (w/ & w/o disconnect)  
Ignore Wide Residue  
Initiator Detected Error  
Message Parity Error  
Message Reject  
No Operation  
Restore Pointers  
Save Data Pointer  
For implementation details on these messages, see clause 5.3.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
5-1  
5.SCSI Interface  
5.1.3. Supported Commands  
The following commands are supported. They include all Mandatory and Extended commands, most Optional  
commands.  
Table 5-1: Supported SCSI Commands  
Command Name  
Operation Code  
19h  
ERASE  
INQUIRY  
12h  
LOAD/UNLOAD  
LOCATE  
LOG SELECT  
1Bh  
2Bh  
4Ch  
4Dh  
15h  
LOG SENSE  
MODE SELECT (6)  
MODE SELECT (10)  
MODE SENSE (6)  
MODE SENSE (10)  
PERSISTENT RESERVE IN  
PERSISTENT RESERVE OUT  
55h  
1Ah  
5Ah  
5Eh  
5Fh  
1Eh  
08h  
PREVENT ALLOW MEDIUM REMOVAL  
READ  
READ ATTRIBUTE  
READ BLOCK LIMITS  
READ BUFFER  
READ POSITION  
RECEIVE DIAGNOSTIC RESULTS  
RELEASE (6)  
8Ch  
05h  
3Ch  
34h  
1Ch  
17h  
RELEASE (10)  
57h  
REPORT DENSITY SUPPORT  
REPORT DEVICE IDENTIFIER  
REPORT LUNS  
REQUEST SENSE  
RESERVE (10)  
44h  
A3h  
A0h  
03h  
16h  
RESERVE (10)  
56h  
REWIND  
01h  
SEND DIAGNOSTIC  
SET DEVICE IDENTIFIER  
SPACE  
1Dh  
A4h  
11h  
TEST UNIT READY  
WRITE  
WRITE ATTRIBUTE  
WRITE BUFFER  
00h  
0Ah  
8Dh  
3Bh  
10h  
WRITE FILEMARKS  
5-2  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
5.SCSI Interface  
5.2. SCSI Bus Operation  
5.2.1. Typical SCSI Operation  
This example describes the typical SCSI bus sequence between the host and the drive.  
1. After waiting for the bus clear time the Host arbitrates for the SCSI bus. It does this by asserting BSY and  
the data line corresponding to its bus ID. If any other devices wish to compete for the bus, they also assert  
BSY and the appropriate data line. Each arbitrating device then inspects the data bus. The device with the  
highest ID wins the bus. All the other devices must release BSY and their data lines.  
2. The Host attempts to select the target by asserting SEL and releasing BSY. The Host maintains its ID and  
asserts the target’s ID on the data bus. Each target then checks the data lines. If the target’s ID matches that  
on the data bus, it accepts selection by asserting BSY. Once the Host has detected BSY being asserted, it  
asserts ATN to indicate that it wants the target to go to the MESSAGE OUT phase. The Host releases SEL.  
3. The target now has control of the SCSI bus and it is the target which switches between phases. The target  
responds to the ATTENTION condition and initiates the MESSAGE OUT phase. The Host sends an  
IDENTIFY message which tells the target which logical unit the Host wishes to talk to. The fact that the  
target responds to the ATN indicates to the Host that the target can accommodate more than just a  
COMMAND COMPLETE message.  
4. The target initiates the COMMAND phase and transfers the Command Descriptor Block from the Host. In the  
COMMAND phase, the target decodes the command and either executes the command (TEST UNIT  
READY) or sets itself up for a data transfer to the Host (READ, WRITE, and INQUIRY etc.). The target then  
either switches to the STATUS phase, if the command is completed, or if it is ready to transfer data, the  
DATA phase.  
5. The data transfer length is set by the Host in the Command Descriptor Block. The target will remain in the  
DATA phase until all the data is transferred.  
6. The target then initiates a STATUS phase and transfers one byte to the Host to indicate whether the target  
has successfully completed the command. If the target has detected an error, the next command that the  
Host is expected to send is REQUEST SENSE. This allows the target to return further status information to  
the Host.  
7. The target completes the SCSI sequence by going to the MESSAGE IN phase and transferring a  
COMMAND COMPLETE message to the Host. The target then releases BSY allowing the bus to go to the  
BUS FREE state.  
5.2.2. Disconnect  
In order to improve bus usage and performance, the unit is capable of temporarily disconnecting from the bus,  
consequently allowing other initiator-target communications to take place. To do so, however, the Host needs to  
support Disconnect/ Re-select. The mechanism for performing the Disconnect/ Re-select procedure is  
implemented as follows:  
1. The Host arbitrates for the SCSI bus and upon winning the bus it proceeds to select target device. Prior to  
releasing SEL and completing the selection phase, the Host asserts the ATN line. The Host then releases  
SEL and BSY to allow the target to assume control of the SCSI bus. By asserting ATN, the host indicates  
that the target should go to a MESSAGE OUT phase.  
2. At this point, the target responds to the Host ATTENTION condition by initiating a MESSAGE OUT phase  
and receiving a message from the Host which tells it whether or not the Host allows Disconnects for the  
desired logical unit on the target.  
3. If the Host does not send an Identify message, the target assumes that Disconnects are not permitted.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
5-3  
5.SCSI Interface  
4. The I/O activity from this point is controlled entirely by the target. The target initiates the COMMAND phase  
and reads in the Command Descriptor Block (CDB) from the Host. If the Host has sent an Identify message  
with the Disconnect permission bit set, then the target will immediately disconnect from the bus after the  
entire CDB has been received.  
5. The Disconnect process occurs when the target initiates a MESSAGE IN phase and sends a DISCONNECT  
message back to the Host. This message may be preceded by a SAVE DATA POINTERS message byte if  
the Disconnect is performed in the middle of the DATA phase. Following the MESSAGE IN phase, the target  
frees the bus by releasing the BSY.  
6. The host now waits for the target to perform Re-selection. When ready, the target re-selects the Host and  
sends an Identify message via a MESSAGE IN phases, indicating the specific logical unit with which the  
subsequent communications are to take place. Usually, the target will proceed from the MESSAGE IN phase  
to either a DATA or a STATUS phase. If the Host had been previously told to SAVE DATA POINTERS, then  
the target’s Identify message implies that the Host restores its data pointers upon re-selection; in other  
words, it is not necessary for the target to send a specific RESTORE DATA POINTERS to the Host in such  
context.  
7. When doing a large data transfer, the target may choose to divide the entire transfer into several smaller  
transfers. This allows the target to free the SCSI bus whenever it needs to perform its own system tasks not  
immediately related to the actual data transfer over the SCSI bus. The target will not lock the bus into the  
DATA phase if it is not presently ready to efficiently execute the transfer. After the data transfer is completed,  
the target enters a STATUS phase and sends a single status byte to the Host. It then proceeds to a  
MESSAGE IN phase, during which the target sends a COMMAND COMPLETE message. Finally, the target  
frees the bus and the current command is considered completed.  
8. The Host may change Disconnect permission at any time after the SELECTION phase by asserting ATN and  
sending an Identify message via a MESSAGE OUT phase. If the Host, however, performs this action during  
a DATA phase, it is possible that the target will not notice the change in Disconnect permission status until  
past the end of the current bus phase.  
5.3. Message Specification  
This clause includes all SCSI messages. Both supported and non-supported messages are listed. Elements of this  
clause come from clause 5, Logical Characteristics, of the SCSI standard. The message system allows  
communication between an initiator and a target for the purpose of physical path management. The table below  
lists the Messages supported by the SDX-1100V.  
The SDX-1100V supports the Synchronous Data Transfer Request Extended Message, and the Wide Data  
Transfer Request Message.  
Table 5-2: Message Descriptions  
Code  
Description  
Direction  
In  
*
*
*
*
Out  
00  
01  
02  
03  
04  
COMMAND COMPLETE  
EXTENDED MESSAGE  
SAVE DATA POINTER  
RESTORE POINTERS  
DISCONNECT  
*
*
05  
06  
INITIATOR DETECTED ERROR  
ABORT  
*
*
*
*
*
07  
08  
09  
0C  
23  
MESSAGE REJECT  
NO OP  
MESSAGE PARITY ERROR  
BUS DEVICE RESET  
IGNORE WIDE RESIDUE  
IDENTIFY  
*
*
*
80-CO  
*
5-4  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
5.SCSI Interface  
5.3.1. COMMAND COMPLETE (00h)  
This message is sent from a target to an initiator to indicate that the execution of a command or a series of linked  
commands has completed and valid status has been sent to the initiator. After successfully sending this message,  
the target goes to the BUS FREE phase by releasing BSY.  
When received as a target, it will be handled as an illegal message, the unit will return MESSAGE REJECT and  
will enter the status phase reporting CHECK CONDITION with the sense key set to COMMAND ABORTED.  
5.3.2. EXTENDED MESSAGE (01h)  
5.3.2.1. PARALLEL PROTOCOL REQUEST (04h)  
PARALLEL PROTOCOL REQUEST messages are used to negotiate a synchronous data transfer  
agreement, a wide data transfer agreement, and set the protocol options between two SCSI devices.  
Negotiations using this message shall only be initiated by initiators. A Parallel Protocol Request message has  
the following format:  
PARALLEL PROTOCOL REQUEST  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
EXTENDED MESSAGE (01h)  
EXTENDED MESSAGE LENGTH (06h)  
PARALLEL PROTOCOL REQUEST (04h)  
TRANSFER PERIOD FACTOR  
RESERVED  
1
2
3
4
5
6
7
REQ/ACK OFFSET  
TRANSFER WIDTH EXPONENT (m)  
RESERVED  
QAS_REQ DT_REQ  
IU_REQ  
TRANSFER PERIOD FACTOR FIELD  
Description  
Code  
Transfer period equals 12.5 ns (Fast-80 data is latched every 12.5 ns). This code is only  
valid if the protocol options field has a value selected that supports double transition data  
transfer (DT_REQ is one)  
09h  
0Ah  
0Bh  
0Ch  
Transfer period equals 25 ns (Fast-40 data is latched every 25 ns or 30.3 ns).  
Transfer period equals 30.3 ns (Fast-40 data is latched every 25 ns or 30.3 ns).  
Transfer period equals 50 ns (Fast-20).  
0Dh-18h  
19h-31h  
32h-FFh  
Transfer period equals the period factor x 4 (Fast-20).  
Transfer period equals the period factor x 4 (Fast-10).  
Transfer period equals the period factor x 4  
For single transition (ST) synchronous data transfer the REQ/ACK OFFSET is the maximum number of REQ  
assertions allowed to be outstanding before a corresponding ACK assertion is received at the target. The size of a  
data transfer may be 1 or 2 bytes depending on the values in the transfer width exponent field.  
For double transition (DT) synchronous data transfer the REQ/ACK OFFSET is the maximum number of REQ  
transitions allowed to be outstanding before a corresponding ACK transition is received at the target. The size of a  
data transfer shall be 2 bytes.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
5-5  
5.SCSI Interface  
The TRANSFER WIDTH EXPONENT field defines the transfer width to be used during DATA IN phases, and  
DATA OUT phases. The transfer width that is established applies to both SCSI devices. Valid transfer widths are 8  
bits (m=00h) and 16 bits (m=01h) if all the protocol options bits are zero. The only valid transfer width is 16 bits  
(m=01h) if any of the protocol options bits are one.  
QAS_REQ bit is not supported and shall be set to zero.  
IU_REQ bit is not supported and shall be set to zero.  
DT_REQ bit of zero indicates that DT DATA phases are to be disabled when received from the initiator and that DT  
DATA phases are disabled when received from the target. A DT_REQ bit of one indicates that DT DATA phases  
are to be enabled when received from the initiator and that DT DATA phases are enabled when received from the  
target.  
A data transfer agreement only applies to the two SCSI devices that negotiate the agreement. Separate data  
transfer agreements are negotiated for each pair of SCSI devices. The data transfer agreement only applies  
to DATA phases.  
A PARALLEL PROTOCOL REQUEST message exchange shall be initiated by an initiator whenever a previously  
arranged parallel protocol agreement may have become invalid. The agreement becomes invalid after any  
condition that may leave the parallel protocol agreement in an indeterminate state such as:  
a) After a hard reset  
b) After a TARGET RESET message  
c) After a power cycle  
d) After a change in the transceiver mode (e.g., LVD mode to SE mode)  
5.3.2.2. SYNCHRONOUS DATA TRANSFER REQUEST (01h)  
This is sent by either the initiator or the target as the first byte of a multiple-byte message. When acting as an  
initiator, the unit will not send any Extended Messages. No Vendor Unique codes are implemented and only the  
Synchronous Data Transfer Request code is supported. Any other message code is handled as an illegal  
message; the unit will return MESSAGE REJECT and will continue. A Synchronous Data Transfer Request  
message has the following format:  
Table 5-3: Synchronous Data Transfer Request  
Byte  
Value  
01h  
03h  
01h  
M
Description  
0
1
2
3
4
Extended message  
Extended message length  
SYNCHRONOUS DATA TRANSFER REQUEST code  
Transfer period (m times 4 nanoseconds)  
REQ/ACK offset  
X
A SYNCHRONOUS DATA TRANSFER REQUEST (SDTR) message exchange shall be initiated by a SCSI device  
whenever a previously-arranged data transfer agreement may have become invalid. The agreement becomes  
invalid after any condition which may leave the data transfer agreement in an indeterminate state such as:  
(1) after a hard reset condition  
(2) after a BUS DEVICE RESET message and  
(3) after a power cycle.  
In addition, a SCSI device may initiate an SDTR message exchange whenever it is appropriate to negotiate a new  
data transfer agreement (either synchronous or asynchronous). SCSI devices that are capable of synchronous  
data transfers shall not respond to an SDTR message with a MESSAGE REJECT message.  
The SDTR message exchange establishes the permissible transfer periods and the REQ/ACK offsets for all logical  
units and target routines on the two devices. This agreement only applies to data phases. The transfer period  
factor times four is the value of the transfer period.  
Transfer period is the minimum time allowed between leading edges of successive REQ pulses and of successive  
ACK pulses. The SDX-1100V supports the following transfer periods:  
5-6  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
5.SCSI Interface  
Table 5-4: Synchronous Data Transfer Rates  
Transfer Period (hex)  
9
0A  
0C  
19  
1F  
26  
2C  
32  
38  
Transfer Rate (MB/s) - narrow  
Transfer Rate (MB/s)- wide  
80  
160  
40.0 20.0 10.0  
80.0 40.0 20.0 16.0 13.34 11.42 10.00 8.88  
8.0  
6.67 5.71 5.00 4.44  
REQ/ACK offset: is the maximum number of REQ pulses allowed to be outstanding before the leading edge of its  
corresponding ACK pulse is received at the target. A REQ/ACK offset value of ZERO shall indicate asynchronous  
data transfer mode. The SDX-1100V supports synchronous data transfer REQ/ACK offset values from 1 to 127.  
The originating device (the device that sends the first of the pair of SDTR messages) sets its values according to  
the rules above to permit it to receive data successfully. If the responding device can also receive data  
successfully with these values (or smaller transfer periods or larger REQ/ACK offsets or both), it returns the same  
values in its SDTR message. If it requires a larger transfer period, a smaller REQ/ACK offset, or both in order to  
receive data successfully, it substitutes values in its SDTR message as required, returning unchanged any value  
not required to be changed. Each device when transmitting data shall respect the limits set by the other’s SDTR  
message, but it is permitted to transfer data with larger transfer periods, smaller REQ/ACK offsets, or both than  
specified in the other’s SDTR message. The successful completion of an exchange of SDTR messages implies an  
agreement as follows:  
Responding Device SDTR response  
Implied Agreement  
(1) Non-ZERO REQ/ACK offset  
Each device transmits data with a transfer period equal to or  
greater than and a REQ/ACK offset equal to or less than the  
values received in the other device’s SDTR message.  
Asynchronous transfer  
(2) REQ/ACK offset equal to ZERO  
(3) MESSAGE REJECT message  
Asynchronous transfer  
If the initiator recognizes that negotiation is required, it asserts the ATN signal and sends a SDTR message to  
begin the negotiating process. After successfully completing the MESSAGE OUT phase, the target shall respond  
with the proper SDTR message. If an abnormal condition prevents the target from returning an appropriate  
response, both devices shall go to asynchronous data transfer mode for data transfers between the two devices.  
Following target response (1) above, the implied agreement for synchronous operation shall be considered to be  
negated by both the initiator and the target if the initiator asserts the ATN signal and the first message out is either  
MESSAGE PARITY ERROR or MESSAGE REJECT. In this case, both devices shall go to asynchronous data  
transfer mode for data transfers between the two devices. For the MESSAGE PARITY ERROR case, the implied  
agreement shall be reinstated if a re-transmittal of the second of the pair of messages is successfully  
accomplished. After two retry attempts, if the target receives a MESSAGE PARITY ERROR message, it shall  
terminate the retry activity. This may be done either by changing to any other information transfer phase and  
transferring at least one byte of information or by going to the BUS FREE phase. The initiator shall accept such  
action as aborting the negotiation, and both devices shall go to asynchronous data transfer mode for data transfer  
between the two devices.  
If the target recognizes that negotiation is required, it sends an SDTR message to the initiator. Prior to releasing  
the ACK signal on the last byte of the SDTR message from the target, the initiator shall assert the ATN signal and  
respond with its SDTR message or with a MESSAGE REJECT message. If an abnormal condition prevents the  
initiator from returning an appropriate response, both devices shall go to asynchronous data transfer mode for  
data transfers between the two devices.  
Following an initiator's responding SDTR message, an implied agreement for synchronous operation shall not be  
considered to exist until the target leaves the MESSAGE OUT phase, indicating that the target has accepted the  
negotiation. After two retry attempts, if the target has not received the initiator's responding SDTR message, it  
shall go to the BUS FREE phase without any further information transfer attempt. This indicates that a catastrophic  
error condition has occurred. Both devices shall go to asynchronous data transfer mode for data transfer between  
the two devices.  
If, following an initiator's responding SDTR message, the target shifts to MESSAGE IN phase and the first  
message in is MESSAGE REJECT, the implied agreement shall be considered to be negated and both devices  
shall go to asynchronous data transfer mode for data transfers between the two devices.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
5-7  
5.SCSI Interface  
The implied synchronous agreement shall remain in effect until a BUS DEVICE RESET message is received, until  
a hard reset condition occurs, or until one of the two SCSI devices elects to modify the agreement. The default  
data transfer mode is asynchronous data transfer mode. The default data transfer mode is entered at power on,  
after a BUS DEVICE RESET message, or after a hard reset condition.  
5.3.2.3. WIDE DATA TRANSFER REQUEST  
Byte  
Value  
01  
02  
03  
m
0
1
2
3
Extended message  
Extended message length  
WIDE DATA TRANSFER REQUEST code  
Transfer Width exponent  
A WIDE DATA TRANSFER REQUEST (WDTR) message exchange shall be initiated by a SCSI device whenever  
a previously-arranged transfer width agreement may have become invalid. The agreement becomes invalid after  
any condition which may leave the data transfer agreement in an indeterminate state such as:  
(1) after a hard reset condition;  
(2) after a BUS DEVICE RESET message and;  
(3) after a power cycle.  
In addition, a SCSI device may initiate a WDTR message exchange whenever it is appropriate to negotiate a new  
transfer width agreement. SCSI devices that are capable of wide data transfers (greater than eight bits) shall not  
respond to a WDTR with a MESSAGE REJECT message.  
The WDTR message exchange establishes an agreement between two SCSI devices on the width of the data  
path to be used for DATA phase transfers between the two devices. This agreement applies to DATA IN and DATA  
OUT phases only. All other information transfer phases shall use an eight-bit data path.  
If a SCSI device implements both wide data transfer option and synchronous data transfer option, then it shall  
negotiate the wide data transfer agreement prior to negotiating the synchronous data transfer agreement. If a  
synchronous data transfer agreement is in effect, then a SCSI device that accepts a WDTR message shall reset  
the synchronous agreement to asynchronous mode.  
The transfer width is two to the transfer width exponent bytes wide. The transfer width that is established applies  
to logical units on both SCSI devices. Valid transfer widths are 8 bits (m=00h), and 16 bits (m=01h). Values of  
m=02 and greater are reserved.  
The originating SCSI device (the SCSI device that sends the first of the pair of WDTR messages) sets its transfer  
width value to maximum data path width it elects to accommodate. If the responding SCSI device can also  
accommodate this transfer width, it returns the same value in its WDTR message. If it requires a smaller transfer  
width, it substitutes the smaller value in its WDTR message. The successful completion of an exchange of WDTR  
messages implies an agreement as follows:  
Responding device WDTR response  
Implied agreement  
a) Non-ZERO transfer width  
Each device transmits and receives data with a transfer  
width equal to the responding SCSI device's transfer width.  
Eight -bit data transfer  
b) Transfer width equal to ZERO  
c) MESSAGE REJECT message  
Eight -bit data transfer  
If the initiator recognizes that negotiation is required, it asserts the ATN signal and sends a WDTR message to  
begin the negotiating process. After successfully completing the MESSAGE OUT phase, the target shall respond  
with the proper WDTR message. If an abnormal condition prevents the target from returning an appropriate  
response, both devices shall go to eight-bit data transfer mode for data transfers between the two devices.  
5-8  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
5.SCSI Interface  
Following target response (1) above, the implied agreement for wide data transfers shall be considered to be  
negated by both the initiator and the target if it the initiator asserts ATN and the first message out is either  
MESSAGE PARITY ERROR or MESSAGE REJECT. In this case, both devices shall go to eight-bit data transfer  
mode for data transfers between the two devices. For the MESSAGE PARITY ERROR case, the implied  
agreement shall be reinstated if a re-transmittal of the second of the pair of messages is successfully  
accomplished. After a vendor-specific number of retry attempts (greater than ZERO), if the target receives a  
MESSAGE PARITY ERROR message, it shall terminate the retry activity. This may be done either by changing to  
any other information transfer phase and transferring at least on byte of information or by going to the BUS FREE  
phase. The initiator shall accept such action as aborting the negotiation and both devices shall go to eight -bit data  
transfer mode for data transfers between the two devices.  
The implied transfer width agreement shall remain in effect until a BUS DEVICE RESET message is received, until  
a hard reset condition occurs, or until one of the two SCSI devices elects to modify the agreement. The default  
data transfer width is eight-bit data transfer mode. The default data transfer mode is entered at power on m, after a  
BUS DEVICE RESET message, or after a hard reset condition.  
5.3.3. SAVE DATA POINTER (02h)  
This message is sent from a target to the initiator at the end of a Data Phase to request that the initiator save a  
copy of the present active data pointer for the currently attached logical unit. The unit will accept this message  
when in the initiator mode. As a target, it will send this message prior to a disconnect. When received as a target, it  
will be handled as an illegal message, the unit will return MESSAGE REJECT and will enter the status phase  
reporting CHECK CONDITION with the sense key set to COMMAND ABORTED.  
5.3.4. RESTORE POINTERS (03h)  
This message is sent from a target to direct the initiator to restore the most recently saved pointers for the  
currently attached logical unit to the active state. Pointers to the command, data, and status locations for the  
logical unit will be restored to the active pointers. Command and status pointers will be restored to the beginning of  
the present command and status areas. The data pointer will be restored to the value at the beginning of the data  
area in the absence of a SAVE DATA POINTER message or to the value at the point at which the last SAVE DATA  
POINTER message occurred for that logical unit.  
The unit sends a RESTORE POINTERS message. Rather, it relies on the implicit restore pointers inherent in a  
re-selection.  
When acting as initiator, the unit will accept a RESTORE POINTERS message before resending a previously  
unsuccessful status or data transfer. It doesn’t send a RESTORE POINTERS for re-selection but relies on the  
implicit restore pointers in re-selection.  
When received as a target, it will be handled as an illegal message; the unit will return MESSAGE REJECT and  
will continue.  
5.3.5. DISCONNECT (04h)  
This message is sent from a target to inform an initiator that the present physical path is going to be broken (the  
target plans to disconnect by releasing BSY). Later, reelection will be required in order to complete the current  
operation.  
Note: The initiator detects a catastrophic error condition when the BUS FREE phase occurs (other than as result  
of a RESET condition) without first receiving a DISCONNECT or COMMAND COMPLETE message. If the target  
intentionally creates this condition, the target clears the current command. This message does not cause the  
initiator to save the data pointer.  
The unit will support this message as an initiator. As a target, the unit supports this message and will disconnect if  
allowed by the initiator.  
When received as a target, it will be handled as an illegal message; the unit will return MESSAGE REJECT and  
will continue.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
5-9  
5.SCSI Interface  
5.3.6. INITIATOR DETECTED ERROR (05h)  
This message is sent from an initiator to inform a target that an error (e.g.: parity error) has occurred that does not  
prevent the target from re-trying the operation. At this point, present pointer integrity is not assured. A RESTORE  
POINTERS message or a disconnect followed by a re-selection, will cause the pointers to be restored to their  
previously defined state.  
This message will not be sent by the drive, when the drive is acting as an initiator. When received as a target the  
unit will enter the status phase reporting CHECK CONDITION with the sense key set to COMMAND ABORTED.  
5.3.7. ABORT (06h)  
This message is sent from the initiator to the target to clear the present operation. All pending data and status from  
the affected logical unit is cleared, and the target goes to the BUS FREE phase. This message can be sent to a  
logical unit that is not currently performing an operation for the initiator.  
A transaction which has not yet been acknowledged with a good Status byte will cause the transaction to be  
aborted. If a transaction has already been acknowledged, the abort will force a Write of any pending data. The  
device will proceed directly to BUS FREE state.  
5.3.8. MESSAGE REJECT (07h)  
This message is sent from either the initiator or target to indicate that the last message it received was  
inappropriate or has not been implemented.  
In order to indicate its intentions of sending this message, the initiator asserts the ATN signal prior to its release of  
ACK for the REQ ACK handshake of the message that is to be rejected. Message Reject is issued in response to  
any messages which the unit considers to be illegal or not supported. The illegal message will cause the current  
command to be aborted and the unit will enter the status phase reporting CHECK CONDITION with the sense key  
set to COMMAND ABORTED.  
When received as a target, if the unit was previously in Message In phase (i.e.: sending messages to the host)  
then MESSAGE REJECT will cause the unit to go straight to the Status phase with a CHECK CONDITION status  
and a sense key of COMMAND ABORTED. If the unit was not previously in Message In phase then MESSAGE  
REJECT will be handled as an illegal message.  
If the initiator sends MESSAGE REJECT message in response to the units DISCONNECT message, the unit will  
disable disconnects for the rest of the nexus and continue.  
5.3.9. NO OPERATION (08h)  
This message is sent by an initiator in response to a target’s request for a message when the initiator does not  
currently have any other valid message to send. This message is accepted when the drive is acting as a target,  
and may be sent when it is an initiator. When a NO-OP is received during any phase, the unit will continue as  
though nothing had happened.  
5.3.10. MESSAGE PARITY ERROR (09h)  
This message is sent from the initiator to the target to indicate that one or more bytes in the last message it  
received had a parity error.  
To indicate its intentions of sending this message, the initiator will send the ATN signal prior to its release of ACK  
for the REQ/ACK handshake of the message that has the parity error. This provides an interlock so that the target  
can determine which message has the parity error.  
This message will not be sent by the drive, when the drive is acting as an initiator. When received as a target, the  
unit will enter the Status phase reporting CHECK CONDITION with the sense key set to COMMAND ABORTED.  
5-10  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
5.SCSI Interface  
5.3.11. BUS DEVICE RESET (0Ch)  
This message is sent from an initiator to direct a target to clear all current commands. Upon recognizing this  
message, the currently executing command will be aborted and the drive will proceed to the BUS FREE state. The  
drive will then execute a hard reset which will leave the drive in a state as if it had been power-cycled. All data in  
the buffer will be written to tape before the reset is performed.  
A BUS DEVICE RESET message should be used to reset the drive, rather than a hard reset, as this will only reset  
the drive rather than all the devices on the bus.  
Due to the catastrophic nature of this command, it should be used cautiously in a multiple initiator system.  
5.3.12. IDENTIFY (80h-FFh)  
These messages are sent by either the initiator or the target to establish the physical connection path between an  
initiator and target for a particular logical unit. This message byte can have the following bits set:  
Bit 7  
Bit 6  
This bit is always set to one to distinguish these messages from other messages.  
This bit is only set to one by the initiator. When set to one, it indicates that the initiator has the ability to  
disconnect and reconnect.  
Bit 5  
LUNTAR: This bit is always ZERO to indicate that the LUNTRN field below is valid.  
Bits 4-3 Reserved.  
Bits 2-0 LUNTRN: These bits specify a logical unit number in a target, and must always be set to ZERO as the  
unit is a single target, single logical unit device on the SCSI bus. The Logical Unit Number for the drive  
is fixed and is set to ZERO. Any other value will cause the unit to enter the status phase reporting  
CHECK CONDITION with the sense key set to COMMAND ABORTED.  
Therefore, only the values 80h and C0h are supported.  
When sent from a target to an initiator during reconnection, an implied RESTORE POINTERS message will be  
performed by the initiator prior to completion of this message, since at no time will a RESTORE POINTERS be  
sent.  
5.3.13. IGNORE WIDE RESIDUE (23h)  
Table 5-5: Ignore Wide Residue Message  
Byte  
0
1
Value  
23  
01  
Message Code  
Ignore  
The IGNORE WIDE RESIDUE message (see table 5-5) shall be sent from the SDX-1100V to indicate that the  
number of valid bytes sent during the last REQ/ACK handshake and REQB/ACKB handshake of a DATA IN phase  
is less than the negotiated transfer width. The ignore field indicates the number of invalid data bytes transferred.  
This message shall be sent immediately following that DATA IN phase and prior to any other messages. The  
ignore field is defined in table 5-6. More than one IGNORE WIDE RESIDUE message may occur during an I/O  
process.  
Table 5-6: Ignore Field  
Ignore  
Invalid data bits  
16-bit transfers  
Reserved  
00h  
01h  
DB (15-8)  
02-FFh  
Reserved  
Even though a byte is invalid its corresponding parity bit shall be valid for the value transferred.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
5-11  
5.SCSI Interface  
5.4. Status Specification  
A Status byte is sent from the drive to the Host during the STATUS phase at the termination of each command as  
specified in the SCSI specification, unless the command has been cleared by an ABORT message, by a BUS  
DEVICE RESET message, or by a hard RESET.  
The Status bytes that will be return are:  
00h  
02h  
GOOD: This status indicates that the drive has successfully completed the command.  
CHECK CONDITION: Any error, exception, or abnormal condition that causes sense data to be set  
returns CHECK CONDITION. The REQUEST SENSE command should be sent following this status to  
determine the nature of the error.  
08h  
BUSY: The drive is busy. This status is returned whenever the drive is unable to accept a command from  
an otherwise acceptable initiator. The BUSY status will be returned by the unit, if, while it is  
DISCONNECTED from the SCSI bus, it receives a command from a different initiator. The unit does not  
stack commands and therefore will not accept the next command until the current one has completed.  
Note that if an initiator sends overlapped commands to the unit (i.e.: it sends a new command while the  
previous one is still executing and the unit is disconnected) then the first command will be aborted and a  
CHECK CONDITION will be returned to the initiator to indicate that the command was aborted. The  
second command will NOT be executed.  
The BUSY status returned by the drive must not be confused with DRIVE NOT READY. DRIVE NOT  
READY will be returned as part of the Sense data following a REQUEST SENSE command and  
indicates that the drive is off-line and no media is loaded in the drive.  
The drive is deemed off-line if the tape is currently unloaded and, normally, ejected from the drive.  
However, the drive will still be off-line if the tape has been retained within the drive following a Host  
issued PREVENT MEDIA REMOVAL command prior to the unload.  
In the off-line state, the Host cannot perform any operation which would cause tape motion. These  
commands will return a CHECK CONDITION status with a DRIVE NOT READY sense key set. The  
command types which are not allowed are write, read, verify or space commands. The Host may load  
the tape when the unit is off-line so long as the tape has been prevented from being ejected via the  
PREVENT/ALLOW MEDIA REMOVAL command.  
While the drive is “Busy” the Host may issue any command, including diagnostic commands, which do  
not access the tape and a GOOD status shall be returned. These commands are:  
INQUIRY  
LOG SELECT  
LOG SENSE  
MODE SELECT  
MODE SENSE  
PREVENT ALLOW MEDIUM REMOVAL  
READ BLOCK LIMITS  
READ BUFFER  
RECEIVE DIAGNOSTIC RESULTS  
RELEASE UNIT  
REQUEST SENSE  
RESERVE UNIT  
SEND DIAGNOSTIC  
WRITE BUFFER  
The TEST UNIT READY command is used to determine the on-line/off-line state of the drive and will,  
therefore, return a CHECK CONDITION status with a DRIVE NOT READY sense key set if no media is  
currently loaded.  
5-12  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
5.SCSI Interface  
10h  
18h  
INTERMEDIATE GOOD: This status is returned for every command in a series of linked commands  
(except the last command), unless an error, exception or abnormal condition causes a CHECK  
CONDITION status or RESERVATION CONFLICT status to be set. If this status is not returned, the  
chain of linked commands is broken; no further commands in the series are executed.  
RESERVATION CONFLICT: This status is returned by the drive whenever the host or another SCSI  
device attempts to access the drive if it has been reserved via the RESERVE command.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
5-13  
5.SCSI Interface  
This page intentionally left blank.  
5-14  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6.Command Specification  
6. Command Specification  
This clause includes all supported SCSI Commands. Elements of this clause come from clauses 7, 8 and 9 of the  
ANSI NCITS 351-2001 (SPC-2), ANSI NCITS 408-2005 (SPC-3), ANSI NCITS.335:2000 (SSC), SCSI interface  
specification.  
The following is a list of the supported SCSI Commands and page index:  
Table 6-1: SCSI Commands and Page Index  
PARA  
6.1  
6.2  
6.3  
6.4  
6.5  
6.6  
6.7  
6.7  
SCSI COMMAND  
ERASE  
INQUIRY  
LOAD /UNLOAD  
LOCATE  
OP CODE  
19h  
12h  
1Bh  
2Bh  
4Ch  
4Dh  
15h  
55h  
1Ah  
5Ah  
5Eh  
5Fh  
1Eh  
08h  
8Ch  
05h  
3Ch  
34h  
1Ch  
17h  
57h  
44h  
A3h  
A0h  
02h  
03h  
16h  
56h  
01h  
0Ch  
1Dh  
A4h  
11h  
PAGE  
6-2  
6-3  
6-8  
6-10  
6-11  
6-13  
6-40  
6-40  
6-54  
6-54  
6-57  
6-60  
6-62  
6-63  
6-65  
6-69  
6-70  
6-73  
6-75  
6-77  
6-77  
6-79  
6-82  
6-83  
LOG SELECT  
LOG SENSE  
MODE SELECT (6)  
MODE SELECT (10)  
MODE SENSE (6)  
MODE SENSE (10)  
PERSISTENT RESERVE IN  
PERSISTENT RESERVE OUT  
PREVENT ALLOW MEDIUM REMOVAL  
READ  
READ ATTRIBUTE  
READ BLOCK LIMITS  
READ BUFFER  
READ POSITION  
RECEIVE DIAGNOSTIC RESULTS  
RELEASE (6)  
6.8  
6.8  
6.9  
6.10  
6.11  
6.12  
6.13  
6.14  
6.15  
6.16  
6.17  
6.18  
6.18  
6.19  
6.20  
6.21  
RELEASE (10)  
REPORT DENSITY SUPPORT  
REPORT DEVICE IDENTIFIER  
REPORT LUNS  
REQUEST BLOCK ADDRESS (obsolete)  
REQUEST SENSE  
RESERVE (6)  
6.22  
6.23  
6.23  
6.24  
6-84  
6-93  
6-93  
6-95  
RESERVE (10)  
REWIND  
SEEK BLOCK (obsolete)  
SEND DIAGNOSTIC  
SET DEVICE IDENTIFIER  
SPACE  
TEST UNIT READY  
VERIFY (obsolete)  
WRITE  
WRITE ATTRIBUTE  
WRITE BUFFER  
WRITE FILEMARKS  
6.25  
6.26  
6.27  
6.28  
6-96  
6-98  
6-99  
6-102  
00h  
13h  
0Ah  
8Dh  
3Bh  
10h  
6.29  
6.30  
6.31  
6.32  
6-103  
6-104  
6-106  
6-108  
Note: In compliance with the SCSI specification, the unit will terminate the command with a CHECK  
CONDITION status and the sense key will be set to ILLEGAL REQUEST when a reserved bit, byte, field or  
code is not ZERO.  
The unit has an embedded SCSI controller interface and therefore is a single target, single logical unit device on  
the SCSI bus. The Obsolete for the drive is fixed and is set to ZERO. In order to be SCSI-2 or SCSI-3 compatible,  
the following scheme is used to check the LUN:  
SCSI-2 states that the LUN addressed by the initiator will appear in the IDENTIFY message sent to the target on  
selection. LUN field inside of CDB will be “obsolete”.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-1  
6.Command Specification  
ERASE  
6.1. ERASE 19h  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
5
Operation Code (19h)  
Reserved  
Immed  
Long  
Reserved  
Reserved  
Reserved  
Control  
The ERASE command causes part or all of the remaining data within a partition to be erased at the current logical  
position. Any write data that is currently held in the buffer is written to tape before the ERASE is executed.  
Immed: If the Immed bit is set to ZERO, the drive will not return status until the selected operation has completed.  
If the bit is set, status will be returned as soon as the operation has been initiated.  
Long: If the Long bit is set to ONE, it will be written from the current logical position until EOM/EOP. If the Long bit  
is set to ZERO, EOD will be written to the current logical position.  
6-2  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
INQUIRY  
6.Command Specification  
6.2. INQUIRY 12h  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
5
Operation Code (12h)  
Reserved  
CmdDT  
EVPD  
Page or Operation Code  
Reserved  
Allocation Length  
Control  
The INQUIRY command requests that the drive send information regarding the drive parameters to the initiator.  
CmdDT: The Command support data (CmdDT) bit of one specifies that the drive returns the optional support data  
specified by the operation code field.  
EVPD: The Enable Vital Product Data (EVPD) bit of one specifies that the drive returns the optional vital product  
data specified by the page code field.  
If both the CmdDT and EVPD bits are zero, the drive returns the standard INQUIRY data. If the page or operation  
code field is not zero when both CmdDT and EVPD are zero, the drive returns a CHECK CONDITION status with  
an ILLEGAL REQUEST Sense Key.  
If the CmdDT and EVPD bits are one, the drive returns a CHECK CONDITION status with an ILLEGAL REQUEST  
Sense Key.  
When the EVPD bit is set to one, the drive returns vital product data that is specified in the page or operation code  
field. If the page or operation code field is reserved or not implemented by the target, the target will terminate the  
command with a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST.  
When the CmdDT bit is set to one, the page or operation field specifies the SCSI operation code for which the  
drive will return command support data.  
Allocation Length: This specifies the maximum number of bytes that the initiator has allocated for returned  
Inquiry data. An Allocation Length of ZERO indicates that no Inquiry data is transferred. This condition is not  
considered an error. The drive will terminate the DATA-IN phase when Allocation Length bytes have been  
transferred or when all available Inquiry data have been transferred to the initiator, whichever is less.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-3  
6.Command Specification  
INQUIRY  
Table 6-2: Standard INQUIRY Data  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Peripheral Qualifier  
Peripheral Device Type (01h)  
Device-Type Modifier (0)  
1
2
3
4
5
6
RMB(1)  
ISO Version (0)  
AENC (0) TrmIOP  
ECMA Version (0)  
Reserved(0)  
ANSI-Approved Version (3)  
Response Data Format (2)  
Additional Length (34h)  
Reserved  
Reserved  
Addr16  
(1)  
RelAdr (0) Reserved WB16 (1) Sync (1) Linked (0) Reserved CmdQ (0) SftRe (0)  
7
8
(MSB)  
(MSB)  
(MSB)  
Vendor Identification  
(SONY)  
Product Identification  
(SDX-1100)  
15  
16  
31  
32  
35  
36  
42  
43  
49  
50  
55  
56  
(LSB)  
(LSB)  
(LSB)  
Product Revision Level  
Reserved  
Drive Mode  
(DR-10)  
Reserved  
Reserved  
CLOCKING (11b)  
QAS (0)  
IUS (0)  
Peripheral Qualifier and Peripheral Device Type: These fields identify the device that is currently connected to  
the logical unit. The drive is a single target, single logical unit device. The logical unit number is set to ZERO.  
Therefore, the drive normally returns Peripheral Qualifier set to 000b the specified peripheral device type is  
currently connected to this logical unit and Peripheral Device Type set to 01h sequential-access device .However,  
if the initiator requests a logical unit number greater than ZERO, the drive returns Peripheral Qualifier set to 011b  
the target is not capable of supporting a physical device on this logical unit and Peripheral Device Type set to 1Fh  
unknown device type.  
RMB: The Removable Medium bit of one indicates that the tape can be removed.  
Device-Type Modifier: This is a seven-bit user defined code, set to 00h.  
ISO Version: This field is ZERO, indicating that the drive does not necessarily comply with the ISO version of  
SCSI.  
ECMA VERSION: This field is ZERO, indicating that the drive does not necessarily comply with the ECMA version  
of SCSI.  
ANSI Approved Version: This field indicates the implemented version of the ANSI version.  
AENC: The drive does not support asynchronous event notification, so this field is ZERO.  
TrmIOP: The drive does not support the Terminate I/O Process message, so this field is ZERO.  
Response Data Format: This field is 2, indicating that the INQUIRY DATA format complies with the ANSI version  
of SCSI-2.  
Additional length: The additional length field specifies the length in bytes of the parameters, in this case, 31  
bytes.  
RelAdr: The drive does not support the Relative Addressing mode, so this bit is never set.  
Wbus16: The drive supports 16-bit wide data transfers, so this bit is set.  
6-4  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
INQUIRY  
6.Command Specification  
Sync: The drive supports synchronous data transfers, so this bit is set.  
Linked: The drive does not support linked command.  
CmdQue: The drive does not support tagged command queuing, so this bit is never set.  
SftRe: The drive responds to the RESET condition with a HARD reset, so this bit is never set.  
Vendor Identification: This field contains eight bytes of ASCII data identifying the vendor of the product as  
"SONY".  
This and the next two fields are left-aligned with the unused bytes at the end of the fields and filled with space  
characters (20h).  
Product Identification: This field contains sixteen bytes of ASCII data identifying the product as "SDX-1100" for  
the data compression model.  
Product Revision Level: This field contains four bytes of ASCII data, which define the SCSI Interface Revision  
Level.  
Addr16: This bit set to 1 indicates the drive supports 16-bit wide SCSI addresses.  
Clocking: This field set to 3 indicates the drive supports both ST (single transition) and DT (double transition).  
QAS: The drive does not support quick arbitration.  
IUS: The drive does not support information units.  
Vital Product Data  
This contains a list of the vital product data codes supported by the drive.  
- Supported Vital Product Data pages  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Peripheral Qualifier  
Peripheral Device Type (01h)  
1
2
3
4
5
6
7
Page Code (00h)  
Reserved (00h)  
Page Length (04h)  
Supported Page List (00h)  
Supported Page List (80h)  
Supported Page List (83h)  
Supported Page List (C0H)  
- Unit Serial Number page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Peripheral Qualifier  
Peripheral Device Type (01h)  
1
2
Page Code (80h)  
Reserved (00h)  
3
4
Page Length (0Ah)  
13  
Product Serial number (in ASCII)  
The page length field specifies the length of the product serial number. If the allocation length is too small to  
transfer all of the pages, the page length will not be adjusted to reflect the truncation.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-5  
6.Command Specification  
INQUIRY  
The product serial number field contains ASCII data that is vendor-specific. The least significant ASCII character of  
the number will appear as the last byte of a successful data transfer.  
- Device Identification page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Peripheral Qualifier  
Peripheral Device Type (01h)  
1
2
Page Code (83h)  
Reserved (00h)  
3
Page Length (32h)  
4
Reserved (00h)  
Reserved (00h)  
Code set (02h)  
5
Identifier type (01h)  
6
Reserved (00h)  
Identifier length (22h)  
Vendor ID (SONY)  
7
8
15  
16  
31  
32  
41  
42  
43  
44  
45  
46  
53  
Product ID (SDX-1100)  
Serial Number of the drive  
Reserved (00h)  
Reserved (00h)  
Code set (01h)  
Identifier type (02h)  
Reserved (00h)  
Identifier length (08h)  
IEEE EUI-64 Code  
IEEE EUI-64: The identifier field a Canonical form IEEE Extended Unique Identifier, 64-bit (EUI-64). (ANSI/IEEE  
394:1995)  
- Product Revision page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Peripheral Qualifier  
Peripheral Device Type (01h)  
1
2
Page Code (C0h)  
Reserved (00h)  
3
Page Length (08h)  
Product Revision Level  
4
7
8
Not Available  
11  
6-6  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
INQUIRY  
6.Command Specification  
Command support data  
If the drive implements the requested SCSI operation code, it will return the data defined in Table 6-3. If the device  
does not implement the requested SCSI operation code it will return the peripheral qualifier and type and 001b in  
the Support field.  
Table 6-3: Command support Data  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Peripheral Quaifier  
Peripheral Device Type (01h)  
Support  
1
2
Reserved (00h)  
ECMA version (0)  
Reserved (00h)  
ISO version (0)  
ANSI – Approved version (03h)  
3
4
Reserved (00h)  
CDB size (m-5)  
CDB usage data  
5
6
m
Support: The drive supports the tested SCSI operation code in conformance with a SCSI standard. The data  
format conforms to the definition in Table 6-3 .  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-7  
6.Command Specification  
LOAD/UNLOAD  
6.3. LOAD/UNLOAD 1Bh  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (1Bh)  
Reserved  
1
2
3
4
5
IMMED  
LOAD  
Reserved  
Reserved  
HOLD  
Control  
Reserved  
EOT (0)  
RETEN  
The LOAD/UNLOAD command requests that the drive enable or disable the media for further operations. This  
command may also be used to request a retension function.  
IMMED: If this bit is set, status is returned as soon as the load or unload operation is initiated. Otherwise, the  
status is returned after the operation has completed.  
LOAD: A LOAD bit of one and a HOLD bit of zero indicates the medium in the drive will be loaded and positioned  
to the beginning-of-partition zero. A LOAD bit of zero and a HOLD bit of zero indicates the medium in the drive will  
be positioned for removal at the extreme position along the medium specified by the EOT bit.  
A LOAD bit of one and a HOLD bit of one indicates if the medium has not been moved into the logical unit, the  
medium will be moved in but not positioned for access. The EOT and RETEN bits will be set to zero. Following  
successful completion, the drive will return GOOD STATUS. If both the medium and drive support MAM, the drive  
will generate a unit attention condition for all initiators with the ASC and ASCQ set to MEDIUM AUXILIARY  
MEMORY ACCESSIBLE.  
A LOAD bit of zero and a HOLD bit of one indicates if the medium is in the drive, the medium will be unthreaded  
but will not be ejected. Following successful completion, the drive will return GOOD STATUS. If both the medium  
and drive support MAM, the drive will generate a unit attention condition for all initiators with the ASC and ASCQ  
set to MEDIUM AUXILIARY MEMORY ACCESSIBLE.  
RETEN: A RETEN bit of one indicates that the drive unit will perform a retension function on the current medium.  
A RETEN bit of zero indicates that the drive will not perform a retension function on the current medium.  
EOT: An end-of-tape (EOT) bit of one and a Load bit of ZERO indicates that the medium will be positioned at  
end-of-medium for removal from the peripheral device. Prior to performing the unload operation, any buffered data  
that is to be written will be transferred to the medium. An EOT bit of ZERO and Load bit of ZERO indicates that the  
medium will be positioned at beginning-of-medium for removal etc. This drive does not support this bit. EOT bit of  
one will cause the target to return CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST  
and the ASC will be set to ILLEGAL FIELD IN CDB. This field is not supported. This field will be set to 0.  
HOLD: A HOLD bit of one indicates MAM will be accessible upon completion of the command but the medium will  
not be positioned for access. A HOLD bit of zero and a LOAD bit of one indicates the medium will be positioned for  
access. A HOLD bit of zero and a LOAD bit of zero indicates MAM will not be accessible upon completion of the  
command.  
If the drive has received an UNLOAD command with the Immediate bit set and then receives either another  
command which would involve tape motion or TEST UNIT READY, the drive will return a CHECK CONDITION  
status with a NOT READY sense key set.  
6-8  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOAD/UNLOAD  
6.Command Specification  
When the drive receives the UNLOAD, the tape is rewound to BOM and ejected. The operator must reload the  
drive manually. If, however, the drive has previously received a PREVENT MEDIA REMOVAL (with prevent bit set)  
command, the tape is retained in the drive. A subsequent LOAD command will load and position the tape at BOP  
ZERO. If an UNLOAD was sent instead, the drive would return NOT READY and the tape would remain within the  
drive. In this case, the drive requires a PREVENT ALLOW MEDIA REMOVAL (with prevent bit clear) command  
before an UNLOAD will eject the tape.  
Note: While the PREVENT MEDIA REMOVAL is in effect, the Front Panel EJECT button is completely disabled.  
If the cassette is unloaded but has not been ejected from the drive because of moisture detection, then a  
subsequent UNLOAD will cause the tape to eject from the drive. All commands except INQUIRY, REQUEST  
SENSE and READ BLOCK LIMITS will return a CHECK CONDITION status with a HARDWARE ERROR sense  
key set. The tape may also be ejected via the Front Panel EJECT button.  
If no cassette is in drive, both LOAD and UNLOAD will return a CHECK CONDITION status with NOT READY  
sense key set  
The valid combinations of the last four fields are given in Table 6-4 below.  
Table 6-4: LOAD UNLOAD Command Parameter Combinations  
HOLD RETEN  
LOAD  
ACTION  
0
0
1 (Load)  
Normal load to access the medium without a retension operation, positioned at BOP0.  
Logical unit in READY state. Immed may be ZERO or 1b.  
1
0
1 (Load)  
Load to access MAM only. logical unit in NOT READY state. Immed may be ZERO or 1b.  
MAM Load Count is not incremented. Unit Attention Condition set for MEDIUM AUXILIARY  
MEMORY ACCESSIBLE.  
0
1
0
1
1
1
0
0
1 (Load)  
1 (Load)  
Normal load to access the medium after a retension operation, positioned at BOP0. Logical  
unit in READY state. Immed may be ZERO or 1b.  
Invalid Combination. Command terminates with CHECK CONDITION Status. The sense key  
is set to ILLEGAL REQUEST and the ASC is set to INVALID FIELD IN CDB.  
0 (Unload)  
0 (Unload)  
Normal Unload/Eject of cartridge. Logical unit enter NOT READY state. Immed may be  
ZERO or 1b.  
Unload of cartridge, but MAM still accessible but cartridge is not ejected. Logical unit enters  
NOT READY state. Immed may be ZERO or 1b. Unit Attention Condition set for MEDIUM  
AUXILIARY MEMORY ACCESSIBLE.  
0
1
1
1
0 (Unload)  
0 (Unload)  
Normal Unload/Eject of cartridge after a retension operation. Logical unit enters NOT READY  
state. Immed may be ZERO or 1b.  
Unload of cartridge after retension operation, but MAM still accessible. Logical unit enter  
NOT READY state. Immed may be ZERO or 1b.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-9  
6.Command Specification  
LOCATE  
6.4. LOCATE 2Bh  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (2Bh)  
Reserved  
1
2
3
4
5
6
7
8
9
Reserved  
BT (0)  
CP  
Immed  
(LSB)  
(MSB)  
Block Address  
Reserved  
Partition (0)  
Control  
The LOCATE command causes the drive to position the logical unit to the specified block address in a specified  
partition. Upon completion, the logical position will be after the specified location. Prior to performing the locate  
operation, the drive will ensure that all buffered data, Filemarks, and Setmarks have been transferred to tape.  
BT: A block address type (BT) bit of one is not supported and will be set to ZERO otherwise a CHECK  
CONDITION with an ILLEGAL REQUEST sense key will be returned.  
CP: A change partition (CP) bit of one indicates that a change to the partition specified in the partition field is to  
occur prior to positioning to the block specified in the block address field. A CP bit of ZERO indicates no partition  
change is to be made and the partition field is to be ignored.  
Immed: An immediate (Immed) bit of ZERO indicates that the drive will not return status until the locate operation  
has completed. An Immed bit of one indicates that the drive will return status as soon as all buffered commands  
have completed execution and the CDB of the LOCATE command has been validated. If CHECK CONDITION  
status is returned for a LOCATE command with an Immed bit of one, the locate operation will not be performed.  
Block Address: The Block Address field specifies the block address to which the drive will be positioned on the  
tape.  
Partition: The Partition field specifies which partition to select if the CP bit is one. Refer to the Mode Select  
command, Medium Partition page for additional information about partitioning. The multi partition is not supported  
by the drive. If set to non-ZERO, a check condition status is returned with a ILLEGAL REQUEST sense key.  
6-10  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOG SELECT  
6.Command Specification  
6.5. LOG SELECT 4Ch  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (4Ch)  
Reserved  
1
2
3
4
5
6
7
8
9
PCR  
SP (0)  
PC  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
(MSB)  
Parameter List Length  
(LSB)  
Control  
The LOG SELECT command provides a means for the initiator to manage statistical information maintained by the  
device about its own hardware or the installed media. This description will be read in conjunction with the  
description of the LOG SENSE command which follows it, to provide the reader with information about log page  
format, parameters and supported pages.  
PCR: A Parameter Code Reset bit of one and a Parameter List Length of ZERO will cause ALL log pages which  
can be cleared, to be cleared. If this field is set and the Parameter List Length field is non-ZERO then the  
command will be terminated with a CHECK CONDITION status with the sense key set to ILLEGAL REQUEST,  
and an ASC of INVALID FIELD IN CDB.  
SP: The device does not have non-volatile RAM into which it may save parameters. Therefore, the Save Page bit  
is not supported by this device and will always be set to ZERO. If the SP bit is set, the command will be terminated  
with a CHECK CONDITION status with the sense key set to ILLEGAL REQUEST, and an ASC of INVALID FIELD  
IN CDB.  
PC: The Page Control field defines the type of parameter values to be selected:  
Table 6-5: Page Control field values  
Value  
00b  
01b  
10b  
11b  
Description  
Current Threshold Values  
Current Cumulative Values  
Default Threshold Values  
Default Cumulative Values  
If this field is set to 00b, 10b or 11b and the Parameter List Length field is non-0 then the command will be  
terminated with a CHECK CONDITION status with the sense key set to ILLEGAL REQUEST, and an ASC of  
INVALID FIELD IN CDB. This is because no modification of these log pages is permitted. For a description of  
command behavior if this field is set to 01b then see the description of the Parameter List Length field below.  
If this field is set to 10b and the Parameter List length field is 0 then all Current Threshold Values will be reset to  
the Default Threshold Values. This is equivalent to no change as Threshold Values cannot be modified.  
If this field is set to 11b and the Parameter List Length field is 0 then all Current Cumulative Values will be reset to  
the Default Cumulative Values. This is equivalent to all log pages which can be cleared.  
Parameter List Length: This field specifies the length in bytes of the LOG SELECT parameter list that will be  
transferred from the initiator to the target during the DATA OUT phase. A parameter list length of ZERO indicates  
that no data will be transferred. This condition will not be considered as an error (see description of Parameter  
Code Reset and Page Control fields above). If this field is non-0 the Page Control field must be 01b.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-11  
6.Command Specification  
LOG SELECT  
The purpose of the Log Select command is to allow the initiator to modify and initialize parameters within the logs  
supported by the device. However in this case, access to individual parameters within log pages is not supported  
and so initiator is restricted to resetting complete log pages only.  
To achieve this, during the DATA OUT phase the initiator must send the log page header of the page to be cleared,  
with the Page Length field set to ZERO. The following pages can be cleared in this manner.  
Table 6-6: Page Codes  
Page Code  
02h  
Description  
Write Error Counter Page  
03h  
Read Error Counter Page  
07h  
Last n Error Events Page  
2Eh  
Tape Alert Log Page  
34h  
35h  
39h  
3Eh  
Write Frame Error Counter Page  
Read Frame Error Counter Page  
Data Compression Transfer Log Page  
MIC Variable Length Information Parameter Code  
Note: Due to the way in which logs are stored and updated, clearing log page 2 will result in log page 3 also being  
cleared and vice versa.  
Because of this method of clearing the log pages, the Parameter List Length field must be an integer multiple of  
the Log Page Header length (i.e. 4). Otherwise the command will be terminated with a CHECK CONDITION status  
with the sense key set to ILLEGAL REQUEST and an ASC of INVALID FIELD IN CDB.  
If multiple pages are sent during the DATA OUT phase then they must be sent in ascending order according to  
page code. Otherwise the command will terminate with a CHECK CONDITION status with the sense key set to  
ILLEGAL REQUEST and an ASC of ILLEGAL FIELD IN PARAMETER LIST. The same status will be returned if an  
unsupported Page Code appears in any header or if the specified page cannot cleared.  
Other Log Select Page Codes have been defined for MIC support. MIC Variable Length Information Page is  
assigned as 3Eh. Please refer the description for “Log Sense Page 3Eh” and Appendix (MIC) on this Product  
Specification Manual. User Volume Note and User Partition Note are automatically created with indicated size, if it  
is not exist. User Volume Note size and User Partition Note size must be the same size with current one, if it is  
already exist. Just only supersede operation is allowed.  
Table 6-7: MIC Variable Length Information Parameter Codes  
Parameter Code  
0001h  
Description  
User Volume Note  
User Partition Note for Partition 0  
Length  
n-3  
n-3  
0002h  
1. See Important Note for Log Sense Page 3Eh.  
2. If there is no User Volume Note and there is no User Partition Note, User Volume Note will be created for the  
specific Length if it does not exceed the Available Free Byte Count returned in Log Sense Page 3Dh  
Parameter Code 0003h. If there is existing User Volume Note and User Partition Note data the new User  
Volume Note data must be exactly the same size as the existing User Volume Note data, otherwise a Check  
Condition status will be returned and no new data will be written to MIC. If there is existing User Volume  
Note data but no User Partition Note data then User Volume Note length may be equal to the Available Free  
Byte Count.  
3. There is no format to writing user data to MIC. The application is free to define MIC data for its use.  
6-12  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOG SENSE  
6.Command Specification  
6.6. LOG SENSE 4Dh  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (4Dh)  
Reserved  
1
2
3
4
5
6
7
8
9
PPC (0)  
SP (0)  
PC  
Page Code  
(MSB)  
(MSB)  
Reserved  
Parameter Pointer  
(LSB)  
(LSB)  
Allocation Length  
Control  
The LOG SENSE command provides a means for the initiator to retrieve statistical information maintained by the  
device about its own hardware or the installed media. It is a complementary command to the LOG SELECT  
command.  
SP: The device does not have non-volatile RAM into which it may save parameters. Therefore, the Save Page bit  
is not supported by this device and will always be set to ZERO. If the SP bit is set, the command will be terminated  
with a CHECK CONDITION status with the sense key set to ILLEGAL REQUEST, and an ASC of INVALID FIELD  
IN CDB.  
PPC: The Parameter Pointer Control bit will always be set to ZERO. This indicates that the parameter data  
requested from the device will start with the parameter code specified in the Parameter Pointer field and return the  
number of bytes specified in the Allocation Length field in ascending order of parameter codes from the specified  
log page. A PPC bit of ZERO and a Parameter Pointer field of ZERO cause all available parameter data for that  
page code to be returned to the initiator. If the PPC bit is set or the Parameter Pointer is larger than the highest  
numbered parameter on the page, then the target will terminate the command with CHECK CONDITION status.  
The sense key will be set to ILLEGAL REQUEST and the ASC will be set to INVALID FIELD IN CDB. If the drive  
does not support a parameter code within this page then it will not return any data associated with this parameter.  
PC: The Page Control field defines the type of parameter values to be selected. The page control field is defined  
below:  
Table 6-8: Page Control field values  
Value  
00b  
01b  
10b  
11b  
Type of Parameter Values  
Current Threshold Values  
Current Cumulative Values  
Default Threshold Values  
Default Cumulative Values  
The Current Threshold Values and the Default Threshold Values are non-changeable and the both will return the  
same values-i.e. the maximum values that each parameter can attain. Note that for some parameters the term  
threshold value has no meaning. See the description of individual pages/ parameters below for more details.  
The Current Cumulative Values are the values computed since the last reset of the device (either by  
power-cycling, BUS DEVICE RESET or SCSI RESET). Note that for some parameters these values cannot be  
reset by any method. See description of individual pages/parameters below for more details.  
The Default Cumulative Values are the values to which each parameter gets initialized on a reset condition as  
described above. See description of individual pages/parameters below for more details.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-13  
6.Command Specification  
LOG SENSE  
Page Code: The Page Code field identifies which log page is being requested by the initiator. If the page is not  
supported then the command will terminate with a CHECK CONDITION status with the sense key set to ILLEGAL  
REQUEST and an ASC of INVALID FIELD IN CDB.  
Supported pages are:  
Table 6-9: Supported Log Pages  
Page Code  
00h  
Description  
Supported Log Pages  
02h  
Write Error Counter Page  
03h  
Read Error Counter Page  
07h  
Last n Error Events Page  
2Eh  
30h  
31h  
Tape Alert Log Page  
Tape Log Page (Sony Unique)  
Tape Capacity Log Page  
33h  
34h  
35h  
39h  
3Ch  
3Dh  
3Eh  
Drive Usage Page (Sony Unique)  
Write Frame Error Counter Page  
Read Frame Error Counter Page  
Data Compression Transfer Log Page  
AIT Log Page  
AIT Fixed Length Information Page for MIC  
AIT Variable Length Information Page for MIC  
Parameter Pointer: The Parameter Pointer field allows the initiator to specify at which parameter within a log  
page the requested data will begin.  
For example if a page supported parameters 0 through 5, and the Parameter Pointer field contained 3 then only  
parameters 3, 4 and 5 would be returned to the initiator. Similarly, if a page supported parameters 1, 3 and 6, and  
the Parameter Pointer field contained 2, then only parameters 3 and 6 would be returned to the initiator.  
Note that parameters within a page are always returned in ascending order according to parameter code. If an  
invalid parameter pointer is sent the drive will return CHECK CONDITION with the sense key set to ILLEGAL  
REQUEST and an ASC of INVALID FIELD IN CDB.  
Allocation Length: The Allocation Length field is used to inform the target how much space the initiator has  
allocated for data. Note however that if this field is 0 then this is not considered an error and the device will just  
return a GOOD STATUS.  
6.6.1. The Log Page Descriptor  
The format of the log pages consists of ZERO or more variable-length parameter structures. Each page begins  
with a 4-byte page header followed by ZERO or more variable-length parameter structures defined for that page.  
The Log Select command supports the ability to send ZERO or more log pages. The LOG SENSE command  
returns a single log page as specified in the Page Code field of the CDB.  
6-14  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOG SENSE  
6.Command Specification  
Table 6-10: Log Page Format  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
Reserved  
(MSB)  
Page Code  
Reserved  
Page Length (n-3)  
(LSB)  
Log Parameters (s)  
4
The First Log Parameter  
x+3  
(Length x)  
.
.
.
n-y  
n
The Last Log Parameter  
(Length y)  
Page code: Identifies which page of data is being transferred. If the Page Code field value is reserved or not  
implemented by the target, the target will terminate the command with a CHECK CONDITION status. The sense  
key will be set to ILLEGAL REQUEST, and the ASC will be set to INVALID FIELD IN PARAMETER LIST.  
Page Length: The Page Length field indicates the total number of bytes that follow this byte. The value returned  
for this field depends on the value you specified for the Page Code and the Parameter Pointer in the CDB. This  
value is independent of what you specified for the Allocation Length. A Page Length value that results in the  
truncation of any parameter will cause the target to terminate the command with a CHECK CONDITION status.  
The sense key will be set to ILLEGAL REQUEST and the ASC will be set to INVALID FIELD IN PARAMETER  
LIST.  
6.6.2. The Log Parameter Descriptor  
Most log pages contain one or more special data structures called log parameters. These may be data counters  
which record the occurrence of certain events, or they may be more complex structures which describe activities  
or other events which occur within the device. Each parameter structure begins with a 4-byte parameter header  
followed by one or more bytes of parameter structure data. The 4-byte header is shown below:  
Table 6-11: Log Parameter  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
(MSB)  
DU(0)  
Parameter Code  
1
2
3
4
n
(LSB)  
LP  
DS (1)  
TSD(0)  
ETC (0) TMC (00)  
Parameter Length (n-3)  
Parameter Value  
LBIN  
Parameter Code: Identifies which parameter of data is being transferred. If the parameter code value is reserved  
or not implemented by the target, then the target will terminate the command with a CHECK CONDITION status.  
The sense key will be set to ILLEGAL REQUEST and the ASC will be set to INVALID FIELD IN PARAMETER  
LIST.  
The DU, DS, TSD, ET, TMC, and LP fields are collectively referred to as the control byte.  
DU: The DU bit (Disable Update) is not defined for threshold values (indicated by the PC field of the LOG SENSE  
CDB). The target will ignore the value of any DU bits in a LOG SELECT command. This field is not supported.  
DS: The DS (Disable Save) bit informs the initiator that savable parameters are disabled (i.e. not supported), and  
will always be 1. If it is 0 the command will terminate with a CHECK CONDITION status with sense key set to  
ILLEGAL REQUEST and ASC of ILLEGAL FIELD IN PARAMETER LIST.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-15  
6.Command Specification  
LOG SENSE  
TSD: A target save disable (TSD) bit of ZERO indicates a target-defined method for saving log parameters. This  
implicit saving operation will be done frequently enough to insure that the cumulative parameter values retain  
statistical significance (i.e. across power cycles). A TSD bit of one indicates that either the target does not provide  
a target-defined method for saving log parameters or the target-defined method has been disabled by the initiator.  
If the initiator sets both the DS and the TSD bits set to one, the target will terminate the command with a CHECK  
CONDITION status. The sense key will be set to ILLEGAL REQUEST with the ASC set to INVALID FIELD IN  
PARAMETER LIST.  
ETC: An enable threshold comparison (ETC) bit of one indicates that when the cumulative parameter value is  
updated, it will be compared to the threshold parameter value and the action specified by the TMC field will be  
taken. An (ET) bit of ZERO disables this comparison. The ET bit is the same for both the cumulative and threshold  
log parameter. Thus when the ET bit is set to a value by the initiator, this value is returned for both the cumulative  
and threshold values of the log parameter. This field is not supported.  
TMC: The threshold met criteria (TMC) field defines the binary relationship between the cumulative and threshold  
log parameter values under which the threshold is met. If the ET bit is one and the threshold condition is met, a  
Unit Attention condition will be posted to all initiators. When reporting the unit attention condition, the target will set  
the sense key to UNIT ATTENTION, the ASC to LOG EXCEPTION, and the ASCQ to THRESHOLD CONDITION  
MET.  
The TMC field is the same for both the cumulative and threshold parameter. Thus when the TMC field is set to a  
value by the initiator, this value is returned for both cumulative and threshold values of the log parameter.  
Table 6-12: Threshold Met criteria  
TMC  
00b  
01b  
10b  
11b  
Threshold Met Criteria  
Any update of the parameter  
Cumulative = Threshold  
Cumulative < > Threshold  
Cumulative > Threshold  
LP: The LP bit field defines whether the parameter is a data counter or a list parameter. See the description of  
each supported page below for information on the setting of this field.  
Note: If any of the other bit-fields in the control byte are set then the command will terminate with a CHECK  
CONDITION status with a sense key of ILLEGAL REQUEST and an ASC of INVALID FIELD IN PARAMETER  
LIST  
6-16  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOG SENSE  
6.Command Specification  
6.6.3. Summary List of Supported Pages (00h)  
The summary list of supported log pages returns the list of page codes supported by the target. This page is only  
valid for the Log Sense command and if sent to the initiator during a Log Select command will cause termination  
with a CHECK CONDITION status with sense key set to ILLEGAL REQUEST and ASC of INVALID FIELD IN  
PARAMETER LIST.  
Table 6-13: Supported Log Pages  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
Reserved  
(MSB)  
Page Code (00h)  
Reserved (00h)  
Page Length (00 0Eh)  
3
(LSB)  
4
Supported Page List  
17  
(00 02 03 07 2E 30 31 33 34 35 39 3C 3D 3Eh)  
This page returns the summary list of supported log pages for the specified logical unit to the requesting initiator.  
IMPLEMENTORS NOTE: Typically, an initiator will first request page ZERO to determine the list of pages  
supported by the device. The page code parameters are a list containing the page codes of the supported pages  
for the logical unit in ascending order. Note that neither Threshold nor Cumulative values have any meaning for  
this page.  
6.6.4. Write and Read Error Counters Pages (02h or 03h)  
The Error Counters Pages (Write and Read) are used to report statistical information about Write and Read soft  
and hard errors and retries. Each parameter is a counter which is updated by the target every time the  
corresponding event occurs. The format of the Error Counters Pages is given below:  
Table 6-14: Write/Read Error counters page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Reserved  
Page Code (02h or 03h)  
Reserved  
Page Length (n)  
1
2
3
(MSB)  
(LSB)  
Table 6-15: Error Counter Descriptors  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
7
(MSB)  
DU (0)  
(MSB)  
Parameter Code  
(LSB)  
LP (0)  
DS (1)  
TSD (0)  
ETC (0)  
TMC (00)  
LBIN (0)  
Parameter Length (n-3)  
Parameter Value  
(LSB)  
The Page Code is one of the following:  
Table 6-16: Page Code  
Page Code  
02h  
Description  
Write error Counter Page  
Read error Counter Page  
03h  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-17  
6.Command Specification  
LOG SENSE  
The following parameter codes are supported for each Error Counters Page:  
Table 6-17: Error Counter parameter codes  
Parameter  
Code  
0003h  
0004h  
0005h  
Description  
Parameter  
Length (Bytes) Cumulative  
Default  
Default  
Threshold  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
Total Errors Corrected (Soft Errors)  
Total Times Correction  
Total Groups Processed (Algorithm  
Processed)  
4
4
4
0
0
0
0006h  
Total Errors Uncorrected (Hard Errors)  
4
0
FFFFFFFFh  
6.6.5. Last N Error Events List (07h)  
This page is used to report information on soft and hard errors encountered by the device during normal operation.  
Each parameter corresponds to an encountered error and is a report of what type of error occurred and when it  
occurred. The format of the page is given below:  
Table 6-18: Last N Error Events Page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Reserved  
Page Code (07h)  
Reserved  
Page Length (n*14)  
1
2
3
(MSB)  
(LSB)  
Table 6-19:Error Events Descriptors  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
(MSB)  
DU (0)  
Parameter Code  
(LSB)  
LP (0)  
DS (1)  
TSD (0)  
ETC (0)  
TMC (00)  
LBIN (0)  
3
4
Parameter Length (0Ah)  
Parameter Value  
13  
The Parameter Codes supported are 1 through 30 where 30 is the maximum number of entries in the log page.  
If there are no entries, the command will return the Page Header with the Page Length field set to ZERO.  
Each error event record contains diagnostic information for a single error encountered by the device. The  
parameter codes associated with the error-event records indicate the order in which the errors occurred. A higher  
parameter code indicates that the error event occurred later in time.  
Each parameter entry is 10 bytes long and has the following format:  
Table 6-20: Error Event format  
Byte Offset  
Meaning  
0 – 4  
5
Result Message (see Diagnostic Clause)  
Unused  
6 – 9  
Time-stamp (number of 1 minute increments since power-on)  
When the log page becomes full, no more entries will be added until the log is cleared (using one of the methods  
described previously) or a reset occurs. The current cumulative values will be returned regardless of the page  
control field in the LOG SENSE CDB.  
6-18  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOG SENSE  
6.Command Specification  
6.6.6. Tape Alert Log Page (2Eh)  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Reserved  
Page Code (2Eh)  
Reserved  
Page Length (140h)  
1
2
3
5n-1  
5n  
5n+1  
5n+2  
5n+3  
(MSB)  
(MSB)  
DU (0)  
(LSB)  
LP (0)  
Parameter Code (n)  
DS (1)  
TSD (0)  
ETC (0)  
TMC (00)  
LBIN (0)  
Parameter Length (1)  
Value of Flag  
The value of n in the Parameter Code field will be in the range of 1 to 64.  
A value of one in the Value of Flag field indicates the flag is set.  
Each flag will be cleared to zero in the following conditions:  
• At power on cycle  
• When Tape Alert Log page is read  
• When specified corrective action has been performed  
• SCSI bus reset or Bus Device Reset message  
• Log Select reset  
There are three types of flags, listed below in order of increasing severity:  
Table 6-21: Tape Alert flag types  
Severity  
Urgent User  
Intervention  
X
Risk of Data Loss  
Explanations  
C (Critical)  
W (Warning)  
I (Information)  
X
X
X
X
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-19  
6.Command Specification  
LOG SENSE  
Tape Alert Log Page Parameter Codes  
Code  
Flag  
Flag Type  
Recommended application client message  
Probable cause  
01h  
Read Warning  
W
W
W
C
The tape drive is having problems reading data. No The drive is having severe  
data has been lost, but there has been a reduction trouble reading  
in the performance of the tape.  
02h  
03h  
04h  
Write  
Warning  
The tape drive is having problems writing data. No  
data has been lost, but there has been a reduction  
in the capacity of the tape.  
The drive is having severe  
trouble writing  
Hard Error  
Media  
The operation has stopped because an error has  
occurred while reading or writing data, which the  
drive cannot correct.  
The drive had a hard read  
or write error  
Your data is at risk:  
1. Copy any data you require from this tape.  
2. Do not use this tape again.  
Media can no longer be  
written/read, or  
performance is severely  
3. Restart the operation with a different tape.  
The tape is damaged or the drive is faulty. Call the  
tape drive supplier helpline.  
The tape is from a faulty batch or the tape drive is  
faulty:  
degraded  
05h  
06h  
Read Failure  
Write Failure  
C
C
The drive can no longer  
read data from the tape  
The drive can no longer  
write data to the tape  
1. Use a good tape to test the drive.  
2. If the problem persists, call the tape drive  
supplier helpline.  
07h  
Media Life  
W
The tape cartridge has reached the end of its  
calculated useful life:  
The media has exceeded  
its specified life  
1. Copy any data you need to another tape  
2. Discard the old tape.  
08h  
09h  
Not Data  
Grade  
W
C
I
The tape cartridge is not data-grade. Any data you  
back up to the tape is at risk.  
Replace the cartridge with a data-grade tape.  
You are trying to write to a write-protected cartridge. Write command is  
Remove the write-protection or use another tape.  
The drive has not been  
able to read the MRS  
stripes  
Write Protect  
attempted to a write  
protected tape  
Manual or s/w unload  
attempted when prevent  
media removal on  
0Ah No Removal  
You cannot eject the cartridge because the tape  
drive is in use.  
Wait until the operation is complete before ejecting  
the cartridge.  
0Bh Cleaning  
Media  
0Ch Unsupported  
Format  
I
I
The tape in the drive is a cleaning cartridge.  
Cleaning tape loaded into  
drive  
You have tried to load a cartridge of a type that is  
not supported by this drive.  
Attempted loaded of  
unsupported tape format,  
e.g. DDS2 in DDS1 drive  
Tape snapped/cut in the  
drive where media can be  
ejected  
0Dh Recoverable  
Snapped Tape  
C
C
The operation has failed because the tape in the  
drive has snapped:  
1. Discard the old tape.  
2. Restart the operation with a different tape.  
The operation has failed because the tape in the  
drive has snapped:  
1. Do not attempt to extract the tape cartridge.  
2. Call the tape drive supplier helpline.  
The memory in the tape cartridge has failed, which  
reduces performance.  
0Eh Unrecoverable  
Snapped Tape  
Tape snapped/cut in the  
drive where media cannot  
be ejected  
0Fh  
Memory Chip  
in Cartridge  
Failure  
W
Memory chip failed in  
cartridge  
Do not use the cartridge for further backup  
operations.  
10h  
11h  
Forced Eject  
C
The operation has failed because the tape cartridge Manual or forced eject  
was manually ejected while the tape drive was  
actively writing or reading.  
while drive actively writing  
or reading  
Read Only  
Format  
W
You have loaded a cartridge of a type that is  
read-only in this drive.  
Media loaded that is  
read-only format  
The cartridge will appear as write-protected  
6-20  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOG SENSE  
6.Command Specification  
Code  
Flag  
Flag Type  
Recommended application client message  
Probably cause  
12h  
W
The directory on the tape cartridge has been  
corrupted.  
File search performance will be degraded. The  
tape directory can be rebuilt by reading all the data prevented the tape  
on the cartridge  
Tape drive powered down  
with tape loaded, or  
permanent error  
Tape  
Directory  
Corrupted  
on Load  
directory being updated  
13h  
14h  
Nearing Media  
Life  
I
The tape cartridge is nearing the end of its  
calculated life. It is recommended that you:  
1. Use another tape cartridge for your next backup. number of passes  
2. Store this tape cartridge in a safe place in case  
you need to restore data from it.  
The tape drive needs cleaning:  
1. If the operation has stopped, eject the tape and  
Media may have  
exceeded its specified  
Clean Now  
C
The drive thinks it has a  
head clog, or needs  
cleaning  
clean the drive  
2. If the operation has not stopped, wait for it to  
finish and then clean the drive.  
Check the tape drive user’s manual for device  
specific cleaning instructions.  
15h  
16h  
17h  
18h  
19h  
Clean Periodic  
W
C
The tape drive is due for routine cleaning:  
1. Wait for the current operation to finish.  
2. Then use a cleaning cartridge.  
Check the tape drive user’s manual for device  
specific cleaning instructions.  
The last cleaning cartridge used in the tape drive  
has worn out:  
1. Discard the worn out cleaning cartridge.  
2. Wait for the current operation to finish.  
3. Then use a new cleaning cartridge.  
The last cleaning cartridge used in the tape drive  
was an invalid type:  
1. Do not use this cleaning cartridge in this drive.  
2. Wait for the current operation to finish.  
3. Then use a valid cleaning cartridge.  
The drive is ready for a  
periodic clean  
Expired  
Cleaning  
Media  
The cleaning tape has  
expired  
Invalid  
Cleaning Tape  
C
Invalid cleaning tape type  
used  
Retention  
Requested  
W
W
The tape drive has requested a retention operation The drive is having  
severe trouble reading or  
writing, which will be  
resolved by a retention  
cycle  
Failure of one interface  
port in a dual-port  
configuration, e.g. Fibre  
channel  
Dual-Port  
Interface Error  
A redundant interface port on the tape drive has  
failed  
1Ah  
1Bh  
Cooling Fan  
Failure  
W
W
A tape drive cooling fan has failed.  
Fan failure inside tape  
drive mechanism or tape  
drive enclosure  
Redundant PSU failure  
inside the tape drive  
enclosure or rack  
Power Supply  
A redundant power supply has failed inside the  
tape drive enclosure. Check the enclosure user’s  
manual for instructions on replacing the failed  
power supply.  
subsystem  
1Ch  
1Dh  
Power  
Consumption  
W
W
The tape drive power consumption is outside the  
specified range  
Power consumption of the  
tape drive is outside  
specified range  
The drive requires  
preventative maintenance  
(not cleaning).  
Drive  
Maintenance  
Preventive maintenance of the tape drive is  
required.  
Check the tape drive user’s manual for device  
specific preventive maintenance tasks or call the  
tape drive supplier helpline.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-21  
6.Command Specification  
LOG SENSE  
Code  
1Eh  
Flag  
Hardware A  
Flag Type  
Recommended application client message  
The tape drive has a hardware fault:  
1. Eject the tape or magazine.  
2. Reset the drive.  
Probable cause  
The drive has a hardware  
fault that requires reset to  
recover.  
C
3. Restart the operation.  
1Fh  
Hardware B  
C
The tape drive has a hardware fault:  
1. Turn the tape drive off and then on again.  
2. Restart the operation.  
3. If the problem persists, call the tape drive  
supplier helpline.  
The drive has a hardware  
fault which is not read/write  
related or requires a power  
cycle to recover.  
Check the tape drive user’s manual for device  
specific instructions on turning the device power  
on and off.  
20h  
21h  
22h  
Interface  
W
C
The tape drive has a problem with the initiator  
interface:  
1. Check the cables and cable connections.  
2. Restart the operation.  
The drive has identified an  
interfacing fault  
Eject Media  
Download Fail  
The operation has failed:  
Error recovery action  
1. Eject the tape or magazine.  
2. Insert the tape or magazine again.  
3. Restart the operation.  
The firmware download has failed because you  
have tried to use the incorrect firmware for this  
tape drive.  
W
Firmware download failed  
Obtain the correct firmware and try again.  
23h  
Drive Humidity  
W
Environmental conditions inside the tape drive  
are outside the specified humidity range  
Drive humidity limits  
exceeded  
24h  
25h  
Drive  
Temperature  
W
W
Environmental conditions inside the tape drive  
are outside the specified temperature range  
Drive temperature limits  
exceeded  
Drive Voltage  
The voltage supply to the tape drive is outside  
the specified range  
Drive voltage limits exceeded  
26h  
27h  
Predictive  
Failure  
Diagnostics  
Required  
C
A hardware failure of the tape drive is predicted. Predictive failure of drive  
Call the tape drive supplier helpline.  
The tape drive may have a fault. Check for  
availability of diagnostic information and run  
extended diagnostics if applicable.  
Check the tape drive users manual for  
instructions on running extended diagnostic  
tests and retrieving diagnostic data  
hardware  
W
The drive may have had a  
failure which may be  
identified by stored  
diagnostic information or by  
running extended  
diagnostics (e.g. Send  
Diagnostic)  
28h  
29h  
Loader  
Hardware A  
C
C
The changer mechanism is having difficulty  
communicating with the tape drive:  
1. Turn the autoloader off then on.  
2. Restart the operation.  
3. If problem persists, call the tape drive supplier  
helpline.  
Loader mechanism is having  
trouble communicating with  
the tape drive  
Loader Stray  
Tape  
A tape has been left in the autoloader by a  
previous hardware fault:  
Stray tape left in loader after  
previous error recovery  
1. Insert an empty magazine to clear the fault.  
2. If the fault does not clear, turn the autoloader  
off and then on again.  
3. If the problem persists, call the tape drive  
supplier helpline.  
2Ah  
Loader  
Hardware B  
W
There is a problem with the autoloader  
mechanism.  
Loader mechanism has a  
hardware fault  
6-22  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOG SENSE  
6.Command Specification  
Code  
2Bh  
Flag  
Loader Door  
Flag Type  
Recommended application client message  
The operation has failed because the autoloader  
door is open:  
Probable cause  
Tape changer door open  
C
1. Clear any obstructions from the autoloader door.  
2. Eject the magazine and then insert it again.  
3. If the fault does not clear, turn the autoloader off  
and then on again  
4. If the problem persists, call the tape drive  
supplier helpline.  
2Ch  
Loader  
Hardware C  
C
The autoloader has a hardware fault:  
1. Turn the autoloader off and then on again.  
2. Restart the operation.  
3. If the problem persists, call the tape drive  
supplier helpline.  
The loader mechanism  
has a hardware fault that  
is not mechanically  
related.  
Check the autoloader users’ manual for device  
specific instructions on turning the device power on  
and off.  
2Dh  
2Eh  
Loader  
Magazine  
C
The autoloader cannot operate without the  
magazine.  
1. Insert the magazine into the autoloader  
2. Restart the operation.  
A hardware failure of the changer mechanism is  
predicted.  
Loader magazine not  
present  
Loader  
Predictive  
Failure  
W
Predictive failure of  
loader mechanism  
hardware  
Call the tape drive supplier helpline.  
32h  
33h  
Lost Statistics  
W
W
Media statistics have been lost at some time in the Drive or library powered  
past  
down with tape loaded  
Error prevented the tape  
directory being updated  
on unload.  
Tape directory  
invalid at unload  
The tape directory on the tape cartridge just  
unloaded has been corrupted.  
File search performance will be degraded  
The tape directory can be rebuilt by reading all the  
data.  
36h  
No start of data  
C
The start of data could not be found on the tape:  
1. Check you are using the correct format tape  
2. Discard the tape or return the tape to your  
supplier  
Tape damaged, bulk  
erased, or incorrect  
format  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-23  
6.Command Specification  
LOG SENSE  
6.6.7. Tape Log Page (30h) (Sony Unique)  
This page is a Sony unique page which provides information on the tape currently being used. This log cannot be  
cleared and has the following format:  
Table 6-22: Tape Log Page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
Reserved  
Page Code (30h)  
Reserved  
Page Length  
(MSB)  
(MSB)  
DU (0)  
(LSB)  
LP (0)  
Parameter Code  
5
6
DS (1)  
TSD (0)  
ETC (0)  
TMC (00)  
LBIN (0)  
7
8
Parameter Length (m)  
Parameter Value  
3+m  
This page is used to return Tape Log information to the initiator in a format which conforms to the LOG SENSE  
command page format.  
Supported Parameter Codes in this page are listed below along with their meanings:  
Table 6-23: Tape Log parameter codes  
Parameter Code  
Description  
Current Groups Written  
Length  
001h  
002h  
003h  
004h  
005h  
006h  
007h  
008h  
009h  
00Ah  
00Bh  
00Ch  
00Dh  
8
8
8
8
8
8
8
8
8
8
8
8
4
Current Rewritten Tracks  
Current Groups Read  
Current C3 ECC Count  
Previous Groups Written  
Previous Rewritten Tracks  
Previous Groups Read  
Previous C3 ECC Count  
Total Groups Written  
Total Rewritten Tracks  
Total Groups Read  
Total C3 ECC Count  
Load Count  
This information is contained within RAM in the Drive Controller. The log is updated as the tape is used.  
The term 'current' refers to information generated during the current load of the tape; 'previous' refers to  
information generated during the last tape load; 'total' refers to information generated since it was first initialized  
including the current load.  
Use: An estimate of reading and writing performance can be made by the ratios of 'Total Groups Written' to  
'Rewritten Tracks' and 'Groups Read' to 'C3 ECC Count'. An indication of tape degradation can be gained by  
comparing these ratios for 'current', 'previous' and 'total' entries.  
Any attempt to change this page using LOG SELECT will result in a CHECK CONDITION with a Sense Key of  
ILLEGAL REQUEST. The current cumulative values will be returned regardless of the Page Control field in the  
LOG SENSE CDB.  
6-24  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOG SENSE  
6.Command Specification  
6.6.8. Tape Capacity Log Page (31h) (Sony Unique)  
The tape Capacity Log Page is used to indicate the approximate capacity of the tape currently being used. The PC  
field of the LOG SENSE command is ignored for this field.  
Table 6-24: Tape Capacity Log Page  
7
6
5
4
3
2
1
0
Bit  
Byte  
0
Page Code (31h)  
Reserved (0)  
Page Length (00 20h when AIT bit =0  
04 00h when AIT bit =1)  
1
2
3
(MSB)  
(LSB)  
Table 6-25: Capacity Descriptors  
7
6
5
4
3
2
1
0
Bit  
Byte  
0
1
2
3
4
7
(MSB)  
DU (0)  
(MSB)  
Parameter Code  
(LSB)  
LP (0)  
DS (1)  
TSD (0)  
ETC (0)  
TMC (00)  
LBIN (0)  
Parameter Length (04h)  
Parameter Value  
(LSB)  
Tape Capacity Log Page Parameters:  
Table 6-26: Tape Capacity Log Parameter Codes  
Length  
Code  
0001  
0002  
0003  
0004  
Description  
Remaining capacity, partition 0 (kilobytes)  
4
4
4
4
Reserved  
Maximum capacity, partition 0 (kilobytes)  
Reserved  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-25  
6.Command Specification  
LOG SENSE  
6.6.9. Drive Usage Log Page (33h) (Sony Unique)  
This page is a SONY unique page which provides information on the drive currently being used. This log cannot  
be cleared and has the following format.  
Table 6-27: Drive Usage Log Page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Reserved  
Page Code (33h)  
Reserved  
Page Length (0244h)  
1
2
3
4
5
6
7
8
(MSB)  
(MSB)  
DU (0)  
(LSB)  
Parameter Code  
(LSB)  
LP (0)  
DS (1)  
TSD (0) ETC (0)  
Parameter Length (m)  
Parameter Value  
TMC (00)  
LBIN (0)  
7+m  
This page is used to return the vendor unique Drive Usage Log information to the initiator in a format which  
conforms to the Log Sense command page format.  
Supported Parameter Codes in this page are listed below with their meaning:  
Table 6-28: Drive Usage Supported Parameter Codes  
Default  
Cumulative  
00000000h  
00000000h  
00000000h  
n/a  
00000000h  
00000000h  
n/a  
n/a  
n/a  
00000000h  
00000000h  
00000000h  
n/a  
Default  
Threshold  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
n/a  
Code  
Description  
Power on minutes  
Drum revolution minutes  
Fan revolution minutes  
Reserved  
Length  
0001h  
0002h  
0003h  
0004h  
0005h  
0006h  
0007h  
0008h  
0009h  
000ah  
000bh  
000ch  
4
4
4
4
4
4
4
8
4
4
4
4
4
4
4
Load count  
Thread count  
FFFFFFFFh  
FFFFFFFFh  
MD serial number  
All board revision number  
Drive serial number  
Mechanism motion count (pinch on count)  
Cleaning Request Flag and Interval  
(minutes)  
EEPROM written count  
Reserved  
Reserved  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
n/a  
000dh  
000eh  
000fh  
n/a  
n/a  
n/a  
n/a  
0010h  
0011h- 0020h  
Reserved  
Reserved  
4
n/a  
n/a  
n/a  
8×16  
Last 16 Mechanism Error Event List  
Cleaning Request Flag and Interval Parameter Format  
Byte 3  
b7  
Byte 2  
Byte 1  
Byte 0  
b
6
b
5
b
4
b
3
b
2
b
1
b
0
b
7
b
6
b
5
b
4
b
3
b
2
b
1
b
0
b
7
b
6
b
5
b
4
b
3
b
2
b
1
b
0
b
7
b
6
b
5
b
4
b
3
b
2
b
1
b
0
←⎯⎯ Drum Rotation Time Interval from the last cleaning (minutes) ⎯⎯→  
Cleaning Request Status (1 = Request)  
6-26  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOG SENSE  
6.Command Specification  
All board revision number is 8 bytes long and has a following format:  
Table 6-29: All Board Revision Number Parameter Format  
Set revision  
0
1
2
3
4
5
6
7
Board revision  
Mechanism revision  
RF revision  
Each Mechanism Error Event is 24 bytes long and has following format:  
Table 6-30: Mechanism Error Event Format  
Byte offset  
Meaning  
0-3  
4-7  
Drum revolution minutes  
Error code  
6.6.10. Read and Write Frame Error Counter Page (34h & 35h)  
The Read and Write Error Counter Page has the following format. All fields in these logs are initialized to ZERO in  
the following circumstances:  
At Power On  
After a cassette unloading  
After a user sends a request for initialization through Log Select  
Table 6-31: Read and Write Frame Error Counter Page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Page Code (34h Write Frame Error Counters, 35h Read Frame Error Counters)  
1
2
3
Reserved  
Page Length (88h)  
(MSB)  
(LSB)  
Error Counter Descriptors  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
(MSB)  
DU (0)  
(MSB)  
Parameter Code  
1
2
3
4
7
(LSB)  
LP (0)  
DS (1)  
TSD (0)  
ETC (0)  
Parameter Length (4)  
Parameter Value  
TMC (0)  
LBIN (0)  
(LSB)  
Parameter Code: This identifies which parameter of data is being transferred. The following codes are supported  
for each Error Counter Page.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-27  
6.Command Specification  
LOG SENSE  
Parameter Code  
Length  
Default Cumulative  
Default Threshold  
0001h Frame Read or Write  
0002h Main Data SYMN Block Errors CH1  
0003h Main Data SYMN Block Errors CH2  
0004h Reserved  
0005h Reserved  
0006h Reserved  
0007h Reserved  
0008h Reserved  
0009h Reserved  
000Ah SYMN Block Errors R1  
000Bh SYMN Block Errors R2  
000Ch SYMN Block Errors R3  
000Dh SYMN Block Errors R4  
000Eh Reserved  
000Fh Reserved  
0010h Reserved  
0011h Reserved  
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
FFFFFFFFh  
Block_Error_Rate [CH1] = Param0002h / (Param0001h×N)  
Block_Error_Rate [CH2] = Param0003h / (Param0001h×N)  
Block_Error_Rate [R1] = Param000Ah / (Param0001h×N/2)  
Block_Error_Rate [R2] = Param000Bh / (Param0001h× N/2)  
Block_Error_Rate [R3] = Param000Ch / (Param0001h× N/2)  
Block_Error_Rate [R4] = Param000Dh / (Param0001h× N/2)  
[N] AIT-5 Tape  
AIT-4 Tape  
: N = 206  
: N = 206  
AIT-3Ex Tape : N = 154  
AIT-3 Tape : N = 336  
The Format of this log page is shown in Table 6-32  
Table 6-32: Read and Write Frame Error Counter Page Header format  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Page Code (34h Write Frame Error Counters, 35h Read Frame Error Counters)  
1
2
3
Reserved  
Page Length (88h)  
(MSB)  
(LSB)  
6-28  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOG SENSE  
6.Command Specification  
The Error Counter Parameter format is shown in Table 6-33  
Table 6-33: Read and Write Frame Error Counter Page Parameter format  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
(MSB)  
Parameter Code  
1
2
(LSB)  
LP  
(0b)  
DU  
(0b)  
DS  
(1b)  
TSD  
(0b)  
ETC  
(0b)  
TMC  
(00b)  
LBIN  
(0b)  
3
4
7
Parameter Length (4)  
Parameter Value  
(MSB)  
(LSB)  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-29  
6.Command Specification  
LOG SENSE  
6.6.11. Data Compression Transfer Log Page (39h) (Sony Unique)  
The page allows the initiator to monitor the performance of the ALDC compression. The PC field in LOG SENSE  
determines whether current cumulative or current/default threshold values are returned. The page has the  
following format:  
Table 6-34: Data Compression Transfer Log Page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
5
6
7
8
Reserved  
Page Code (39h)  
Reserved  
Page Length (58h)  
(MSB)  
(MSB)  
DU (0)  
(MSB)  
(LSB)  
Parameter Code (n)  
(LSB)  
LP (0)  
DS (1)  
TSD (0)  
ETC (0)  
TMC (00)  
LBIN (0)  
Parameter Length (4)  
Parameter Value  
11  
(LSB)  
Data Compression Log Page Fields:  
Supported Parameter Codes in this page and their meanings are as follows:  
Code  
0001h  
0002h  
0003h  
0004h  
0005h  
0006h  
0007h  
0008h  
0009h  
000Ah  
000Bh  
Description  
Length  
Number of entities written  
Number of entities read  
Number of records written  
Number of records read  
4
4
4
4
4
4
4
4
4
4
4
Megabytes to data compression  
Megabytes from data compression  
Megabytes to tape  
Megabytes from tape  
Logical entity size  
Physical entity size  
Uncompressed entities  
Entities Written/Read: The total number of complete entities written to or read from the tape since the last  
power-on or Clear Log operation.  
Records Written/Read: The total number of records (both compressed and uncompressed) written to or read  
from the tape since the last power-on or Clear Log operation.  
Kilobytes to/from Data Compression: The total number of kilobytes written to or read from the tape since the  
last power-on or Clear Log operation. For Kilobytes from Data Compression, this number may be greater than the  
number of kilobytes transferred to the initiator due to read ahead.  
Logical Entity Size: The logical size of the last entity written to or read from the tape: size = number of record in  
entity × record size in bytes  
Physical Entity Size: The physical size of the last entity written to or read from the tape: size = entity header  
length + uncompressed data length  
Uncompressed Entities: The total number of times non-ALDC entities have been encountered on the tape during  
read operations since the last power-on or Clear Log operation.  
6-30  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOG SENSE  
6.Command Specification  
6.6.12. AIT Log Page (3Ch) (Sony Unique)  
This page is for the AIT original Tape Log. The AIT Tape Log of each fields are larger than legacy Tape Log Page.  
The legacy Tape Log Page returns the part of AIT original. This page indicates the Partition Information at the  
current Partition.  
Table 6-35: AIT Log Page  
Bit  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Page Code (3Ch)  
Reserved  
Page Length (n+1)  
1
2
3
(MSB)  
(LSB)  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
N
(MSB)  
DU (0)  
(MSB)  
Parameter Code (0001h - 0012h and 0101h - 0112h)  
(LSB)  
LP (0)  
DS (1)  
TSD (0) ET (0) TMC (00)  
LBIN (0)  
Parameter Length (n-3)  
Parameter Value  
(LSB)  
Parameter Code:  
Code  
Description  
Length  
0001h  
0002h  
0003h  
0004h  
0005h  
0006h  
0007h  
0008h  
0009h  
000Ah  
000Bh  
000Ch  
000Dh  
000Eh  
000Fh  
0010h  
0011h  
0012h  
Current Groups Written  
Current Rewritten Tracks  
Current Groups Read  
Current C3 ECC Count  
Previous Groups Written  
Previous Rewritten Tracks  
Previous Groups Read  
Previous C3 ECC Count  
Total Groups Written  
Total Rewritten Tracks  
Total Groups Read  
Total C3 ECC Count  
Load Count  
Access Count  
Update Replace Count  
Last Valid Absolute Frame Number  
Partition Attribute  
8
8
8
8
8
8
8
8
8
8
8
8
4
4
8
8
8
8
Maximum Absolute Frame Number  
Previous Groups Written: This is the number of groups physically written to the tape or partition since the last  
update of the System area. Where Repeat Writing is in force, this count increments for each instance.  
Total Groups Written: This is the total number of groups physically written to the tape or partition since the first  
time the tape or partition was written. The number accumulates over the life of the tape but is ZEROed by a format  
pass. Where Repeat Writing is in force, this count increments for each instance.  
Previous Groups Read: This is the number of groups physically read from the tape or partition since the last  
update of the System area.  
Total Groups Read: This is the total number of groups physically read from the tape or partition since the first  
time the tape or partition was written. This does not include any reading as part of a Read-After-Write check. The  
number accumulates over the life of the tape but is ZEROed by a format pass.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-31  
6.Command Specification  
LOG SENSE  
Total Rewritten Frames: This is the total number of frames on the tape or within the partition that were needed to  
be rewritten since the tape or partition was first written. It is incremented by 1 each time a frame is repeated  
following error detection by the Read-After-Write process. This count does not include any frames which are  
written between the original frame and its rewrite. The number accumulates over the life of the tape but is ZEROed  
by a format pass.  
Total 3rd ECC Count: This is the number of groups which have been physically read and data has not been  
recovered without requiring the use of C3 correction since the first time the tape or partition was written. The  
number accumulates over the life of the tape but is ZEROed by a format pass.  
Access Count: This is the number of times the drive accesses the partition. The both an "Unload" and a "Change  
Partition" is the event for incrementing the Access Count counter.  
Update Replace Count: This is the number of times the drive update the partition.  
Previous Rewritten Frames: This is the number of frames on the tape or within the partition that were needed to  
be rewritten since the last update of the System area. It is incremented by 1 each time a frame is repeated  
following error detection by the Read-After-Write process. This count does not include any frames which are  
written between the original frame and its rewrite.  
Previous 3rd ECC Count: This is the number of groups which have been physically read and data has not been  
recovered without requiring the use of C3 correction since the last update of the System area.  
Load Count: This is the number of times the tape has been loaded since the first time a tape was written. One  
load consists of threading the media around the drum of the drive mechanism, positioning the tape ready for use  
and later unthreading the media. The number accumulates over the life of the tape but is ZEROed by a format  
pass. This field is Reserved in the System Log of Partition 0 of a multiple partitioned tape.  
Last Valid Absolute Frame Number: This field will specify the Absolute Frame Number which is the number of  
Frames written since the beginning of the partition, excluding any Frames that are written in the test area. The first  
Frame of the Reference area is the first Frame after the Logical Beginning-Of-Tape (LBOT) point of the current  
partition and has an Absolute Frame Number of 1. Any discontinuous or repeated numbers will occur only in an  
Amble Frame sequence.  
Maximum Absolute Frame Count: This field will specify the Absolute Frame Number of the last Frame of the last  
EOD Area as the Maximum Absolute Frame Number. After that, the Maximum Absolute Frame Number is equal to  
the Valid Maximum Absolute Frame Number, because the whole data area in the partition contains valid data. The  
Maximum Absolute Frame Number will not be changed as long as the partition size is the same.  
Partition Attributes: This field is not supported and will be always set to ZERO.  
6-32  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOG SENSE  
6.Command Specification  
6.6.13. MIC Fixed Length Information Page (3Dh) (Sony Unique)  
Table 6-36: MIC Fixed Length Information Page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Page Code (3Dh)  
Reserved  
Page Length (n+1)  
1
2
3
(MSB)  
(LSB)  
Parameter Code:  
Code  
Description  
Length  
4
0001h  
0002h  
0003h  
0004h  
0005h  
0006h  
0007h  
0008h  
0009h  
000Ah  
000Bh  
000Ch  
000Dh  
000Eh  
000Fh  
0010h  
0011h  
0012h  
MIC Logical Format Type  
Device Configuration bits  
Available free byte count  
User Volume Note size  
Reserved  
Cassette Serial Number, etc.  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
4
4
4
8
32  
32  
32  
32  
32  
32  
32  
32  
32  
32  
32  
32  
32  
0013h  
0014h  
0015h  
0016h  
0017h  
0018h  
Reserved  
Obsolete  
Accumulative System Log  
Volume Information  
Element Address  
32  
32  
90  
96  
96  
4
User Partition Note size for Partition #0  
Note:  
1. Parameter Code 0002h AIT Device Configuration Byte is the same byte value returned in Mode Sense Page  
31h byte 2. See page 6-58 paragraph 6.8.1 for a description of the fields in this byte.  
2. Parameter Code 0003h Available Free Byte Count represents the current user MIC memory that is available  
for writing data to the MIC using the Log Select command through Page 3Eh Parameter Code 0001h,  
0002h, …. 000Nh. If Available Free Byte Count is 1 or higher the application may use exactly that size or  
smaller to write MIC User data. If this field is ZERO a Check Condition status is returned if attempts are  
made to write data to the MIC. If the application attempts to write data to the MIC that is larger than this field  
a Check Condition status will also be returned. In both cases where Check Condition status is returned no  
data is written to the MIC.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-33  
6.Command Specification  
LOG SENSE  
Parameter Code 0017h Drive Element Address data field is reserved. The drive always returns ZERO for this field.  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
(MSB)  
DU (0)  
(MSB)  
Parameter Code (0001h)  
1
2
3
4
7
(LSB)  
DS (1)  
TSD (0)  
ETC (0)  
TMC (00)  
LBIN (0)  
LP (0)  
Parameter Length (4)  
MIC Logical Format Type  
(LSB)  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
5
6
7
(MSB)  
DU (0)  
Parameter Code (0002h)  
(LSB)  
LP (0)  
DS 1)  
TSD (0)  
ABS  
ETC (0)  
TMC (00)  
LBIN (0)  
Parameter Length (4)  
Reserved  
DEVICE  
ULPBOT  
AIT  
(MSB)  
PRTH  
PONEJ  
SysLogAlive  
(LSB)  
Reserved  
Bit  
Bit  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
7
(MSB)  
DU (0)  
(MSB)  
Parameter Code (0003h)  
(LSB)  
LP (0)  
DS (1)  
TSD (0)  
ETC (0)  
Parameter Length (4)  
Available Free Byte Count  
TMC (00)  
LBIN (0)  
(LSB)  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
7
(MSB)  
DU (0)  
(MSB)  
Parameter Code (0004h)  
(LSB)  
LP (0)  
DS (1)  
TSD (0)  
ETC (0)  
Parameter Length (4)  
User Volume Note Size  
TMC (00)  
LBIN (0)  
(LSB)  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
(MSB)  
DU (0)  
(MSB)  
Parameter Code (0005h)  
(LSB)  
LP (0)  
DS (1)  
TSD (0)  
ETC (0)  
TMC (00)  
LBIN (0)  
Parameter Length (8)  
Reserved  
11  
(LSB)  
6-34  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOG SENSE  
6.Command Specification  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
(MSB)  
DU (0)  
(MSB)  
Parameter Code (0006h)  
(LSB)  
LP (1)  
DS (0)  
TSD (1)  
ETC (0)  
TMC (00)  
LBIN (0)  
Parameter Length (32)  
Cassette Serial Number (ASCII Code)  
35  
(LSB)  
Bit  
7
6
5
4
3
2
2
2
1
0
Byte  
0
1
2
3
4
(MSB)  
DU (0)  
(MSB)  
Parameter Code (0007h – 0013h)  
(LSB)  
LP (0)  
DS (1)  
TSD (0)  
ETC (0)  
Parameter Length (32)  
Reserved  
TMC (00)  
LBIN (0)  
35  
(LSB)  
Bit  
7
6
5
4
3
1
0
Byte  
0
1
2
3
4
(MSB)  
DU (0)  
Parameter Code (0014h)  
(User Partition Note Map)  
ETC (0)  
Parameter Length (32)  
Obsolete  
(LSB)  
LP (0)  
DS (1)  
TSD (0)  
TMC (00)  
LBIN (0)  
35  
Bit  
7
6
5
4
3
1
0
Byte  
0
1
2
3
(MSB)  
DU (0)  
Parameter Code (0015h)  
(Accumulative System Log)  
(LSB)  
LP (0)  
DS (1)  
TSD (0)  
ETC (0)  
TMC (00)  
LBIN (0)  
Parameter Length (90)  
4
(MSB)  
(MSB)  
(MSB)  
(MSB)  
CURRENT AMOUNT OF DATA WRITTEN  
The CURRENT WRITE RETRIES COUNT  
CURRENT AMOUNT OF DATA READ  
CURRENT READ RETRIES COUNT  
9
(LSB)  
10  
15  
16  
(LSB)  
(LSB)  
(LSB)  
21  
22  
27  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-35  
6.Command Specification  
LOG SENSE  
28  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
PREVIOUS AMOUNT OF DATA WRITTEN  
PREVIOUS WRITE RETRIES COUNT  
PREVIOUS AMOUNT OF DATA READ  
PREVIOUS READ RETRIES COUNT  
TOTAL AMOUNT OF DATA WRITTEN  
TOTAL WRITE RETRIES COUNT  
TOTAL AMOUNT OF DATA READ  
TOTAL READ RETRIES COUNT  
LOAD COUNT  
33  
34  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
39  
40  
45  
46  
51  
52  
57  
58  
63  
64  
69  
70  
73  
74  
81  
82  
TOTAL CHANGE PARTITION COUNT  
TOTAL PARTITION INITIALIZE COUNT  
87  
88  
93  
6-36  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOG SENSE  
6.Command Specification  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
(MSB)  
DU (0)  
Parameter Code (0016h)  
(Volume Information)  
1
2
(LSB)  
DS (1)  
TSD (0)  
ETC (0)  
TMC (00)  
LBIN (0)  
LP (0)  
3
Parameter Length (96)  
Reserved (Eject Status)  
Reserved (Reel Diameter)  
Reserved  
4-23  
24-27  
28  
29-31  
32  
Initialize Count  
ABS  
Reserved  
SysLogAlive  
ULPBOT  
AIT  
33  
34-99  
Last Partition Number  
Reserved  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
(MSB)  
DU (0)  
(MSB)  
Parameter Code (0017h)  
(Element Address)  
(LSB)  
LP(0)  
DS (1)  
TSD (0)  
ETC (0)  
TMC (00)  
LBIN (0)  
Parameter Length (4)  
Reserved  
99  
(LSB)  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
7
(MSB)  
DU (0)  
(MSB)  
Parameter Code (0018h)  
(User Partition Note for Partition 0)  
TSD (0) ETC (0) TMC (00)  
Parameter Length (4)  
User Partition Note Size for Partition 0  
(LSB)  
LP (0)  
DS (1)  
LBIN (0)  
(LSB)  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-37  
6.Command Specification  
LOG SENSE  
6.6.14. MIC Variable Length Information Page (3Eh) (Sony Unique)  
Page 3Eh is a variable length page. That is not defined by ANSI. This page is Sony Vendor Unique.  
Important NOTE:  
1. Only one Parameter Code in Page 3Eh is transferred at a time.  
2. Byte 3 of Parameter Code in the Page 3Eh is Reserved. (Will be set to ZERO.)  
3. Parameter Length for the contents of the Parameter Code in Page 3Eh is stored at the byte position 4 and 5.  
4. The Page Length field in the Page Code indicates the total number of bytes that follow this byte. This value is  
independent of what is specified for the Allocation Length in the CDB.  
Table 6-37: MIC Variable Length Information Page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Page Code (3Eh)  
Reserved  
Page Length (n-3)  
1
2
3
(MSB)  
(LSB)  
Parameter Code  
0001h  
Description  
User Volume Note  
User Partition Note for Partition 0  
0002h  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
(MSB)  
DU (0)  
(MSB)  
(MSB)  
Parameter Code (0001h)  
(User Volume Note)  
1
2
3
4
5
6
N
(LSB)  
LP (1)  
DS (1)  
TSD (0)  
ETC (0)  
Reserved  
TMC (00)  
LBIN (1)  
User Data Length  
(LSB)  
User Data  
(LSB)  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
5
6
N
(MSB)  
DU (0)  
(MSB)  
(MSB)  
Parameter Code (0002h)  
(User Partition Note for Partition #0)  
TSD (0) ETC (0) TMC (00)  
Reserved  
(LSB)  
LP (1)  
DS (1)  
LBIN (1)  
User Data Length  
(LSB)  
(LSB)  
User Data  
6-38  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
LOG SENSE  
6.Command Specification  
Note:  
1. If there is no Note data in MIC for the Parameter Code specified in the CDB, a Check Condition status will be  
returned.  
2. If the Allocation Length of the CDB is ZERO, a Good status is always returned and there is no data phase.  
If the Allocation Length of the CDB is non-ZERO and there is data in MIC for the Parameter Code, the user  
data will be returned up to the size of the MIC data, as limited by the allocation length.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-39  
6.Command Specification  
MODE SELECT  
6.7. MODE SELECT(6/10) 15h and 55h  
Mode Select (6) CDB Format:  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (15h)  
PF  
Reserved  
Reserved  
Parameter List Length  
Control  
1
2
3
4
5
Reserved  
Reserved  
SP (0)  
Mode Select (10) CDB Format:  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
5
6
7
8
9
Operation Code (55h)  
PF  
Reserved  
Reserved  
SP (0)  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
Parameter List Length (MSB)  
Parameter List Length (LSB)  
Control  
The MODE SELECT (6/10) commands enable the initiator to configure the drive. Similarly MODE SENSE enables  
the initiator to identify which configuration parameters the drive supports and what its current configuration is.  
Implementing MODE SELECT and MODE SENSE requires a certain amount of "handshaking" between the  
initiator and the drive. Before configuring the drive, the initiator will issue a MODE SENSE. This allows the drive to  
return its current configuration and indicate what parameters are configurable. The initiator interprets this  
information and may then issue a MODE SELECT command to set up the drive to the initiator’s preferred  
configuration.  
Note: In the MODE SELECT and MODE SENSE (operation code 1Ah) descriptions much of the information  
overlaps and therefore the two descriptions will be read in conjunction.  
MODE SELECT allows the initiator to specify configuration parameters to the drive.  
PF: The Page Format bit indicates that the data sent by the initiator after the MODE SELECT header and block  
descriptors complies with the definition of pages as set out in SCSI-2 or SCSI-3.  
SP: The Save Parameters bit instructs the drive to save all savable pages. This bit is not supported and the drive  
will return a CHECK CONDITION status with an ILLEGAL REQUEST sense key, if it is set.  
Parameter List Length: This specifies the length, in bytes, of the MODE SELECT parameter list that is  
transferred during the DATA OUT phase. A ZERO parameter list length indicates that no data is transferred. The  
Parameter List length must be a value which coincides with header, block descriptor or page boundaries. If this  
does not occur then the drive will return a CHECK CONDITION status with an ILLEGAL REQUEST sense key set.  
6-40  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
MODE SELECT  
6.Command Specification  
The MODE SELECT parameter list has the following format.  
Table 6-38: MODE SELECT (6) parameter list  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
Reserved  
Reserved  
Reserved  
(MSB)  
Buffered Mode (001b)  
Speed (00h)  
Block Descriptor Length (0008h)  
Density Code  
Number of Blocks (00 00 00h)  
5
6
7
(LSB)  
8
Reserved  
9
(MSB)  
Block Length  
10  
11  
(LSB)  
Table 6-39:MODE SELECT (10) parameter list  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
Reserved  
Reserved  
Reserved  
Reserved  
Buffered Mode  
Speed (00h)  
Reserved  
Reserved  
Block Descriptor Length (08h)  
Density Code  
LONGLS  
A (0)  
5
6-7  
8
9
(MSB)  
(MSB)  
Number of Blocks (00 00 00h)  
10  
11  
12  
13  
14  
15  
(LSB)  
(LSB)  
Reserved  
Block Length  
Buffered Mode: Buffered Mode is the mechanism by which the drive implements Immediate Reporting on WRITE  
commands.  
If the field is ZERO, then the drive does not report a GOOD status on WRITE commands until the data blocks are  
actually written to tape (not support).  
If the Buffered Mode field is one, then the drive reports GOOD status on WRITE commands as soon as the data  
block has been transferred to the buffer. This field will be set to ONE.  
Speed: The drive only supports one speed, the default speed. Because of this, this field must be set to ZERO. Any  
other value will cause a CHECK CONDITION status with an ILLEGAL REQUEST sense key to be returned.  
Block Descriptor Length: This specifies the length in bytes of all the block descriptors. Since the drive only  
allows one block descriptor, this value must be eight. Any other value will cause a CHECK CONDITION status with  
an ILLEGAL REQUEST sense key to be returned.  
Note: The block descriptor specifies the media characteristics for the SDX drive. The block descriptor contains the  
density code, number of blocks and block length fields.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-41  
6.Command Specification  
MODE SELECT  
Density Code: The supported values for the density code field are defined in the following table.  
Table 6-40: Sequential-Access Density Codes  
Code Value  
30h  
Code Value  
AIT-1  
AIT-2  
AIT-3  
AIT-3Ex  
AIT-4  
AIT-5  
Format (not support)  
Format (not support)  
Format  
Format  
Format  
31h  
32h  
B3h  
33h  
34h  
Format  
7Fh  
No change from previous density  
Number of Blocks: A MODE SENSE field which will be returned as ZERO, indicating that all of the remaining  
logical blocks on the media will have the medium characteristics specified by the block descriptor, or until a  
subsequent MODE SELECT command changes those parameters. This field must be set to ZERO on a MODE  
SELECT otherwise a CHECK CONDITION status will be returned with an ILLEGAL REQUEST sense key.  
Block length: The Block Length field specifies the length in bytes of each logical block. A block length of ZERO  
indicates that the length is variable. Any other value indicates the number of bytes per block that the drive must  
handshake over the bus. This establishes block length such that the transfer length for read, write type commands  
will be a block count not a byte count.  
Note: It is value of this field together with the Fixed bit Field in the READ, or WRITE commands that determine  
whether the drive is in Fixed or Variable block mode.  
Mode  
Fixed Bit in Read, Write  
Block Length in  
Mode Select/Sense  
Block Size  
Fixed Block  
Variable Block  
1
0
0
The default fixed block size is 0 bytes however, if a fixed command (fixed bit of ONE) is received, the drive will  
return the CHECK CONDITION status with an ILLEGAL REQUEST sense key and the ASC will be set to  
COMMAND SEQUENCE ERROR.  
Note: Minimum block-size is 4. The figures must be multiples of 4, otherwise CHECK CONDITION status will be  
returned with an ILLEGAL REQUEST sense key.  
Following the Block Descriptor are the MODE SELECT pages. They are the method by which the device  
parameters are set. Each page has a two byte header which identifies the page code and indicates the number of  
bytes in that page.  
Table 6-41: MODE SELECT Page Header  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
PS  
Reserved  
Page Code  
Additional Page Length  
PS: when the Page Savable bit is set, this indicates that the page contains saved parameters. This bit will never  
be set as there is no non-volatile RAM on the drive into which parameter data may be saved.  
6-42  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
MODE SELECT  
6.Command Specification  
Supported page codes are:  
Table 6-42: Supported MODE SELECT Page Codes  
Page Code  
00h  
Description  
Standard Sense  
02h  
0Ah  
0Fh  
10h  
11h  
1Ch  
31h  
32h  
33h  
3Fh  
Disconnect-Reconnect  
Control Mode Page  
Data Compression Control  
Device Configuration  
Medium Partitions Parameter  
Information Exception Control  
AIT Device Configuration  
Append Partition (obsolete)  
Delete Partition (obsolete)  
Return All Pages  
Additional Page Length: Indicates the number of bytes in that page. The value does not, however, include bytes  
0 and 1. The length is returned on MODE SENSE and must subsequently be set to the same value when  
performing MODE SELECT.  
If the page length does not match that expected by the drive a CHECK CONDITION status is returned with the  
sense key to set to ILLEGAL REQUEST.  
The drive also returns a CHECK CONDITION status with an ILLEGAL REQUEST sense key if the initiator sends  
an unsupported Page Code, a page field with values that are not supported or are not changeable. In this case, no  
parameters will have been changed by the command.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-43  
6.Command Specification  
MODE SELECT  
6.7.1. Disconnect-Reconnect Page (02h)  
The drive supports the Disconnect-Reconnect Page which has the following format:  
Table 6-43: Disconnect-Reconnect Page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
PS(0)  
Reserved  
Page Code (02h)  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
Page Length (0Eh)  
Buffer Full Ratio (00h)  
Buffer Empty Ratio (00h)  
Bus Inactivity Limit (00h)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
Disconnect Time Limit (0000h)  
Connect Time Limit (00h)  
Maximum Burst Size (4000h)  
Reserved  
Fair Arbitration (00b)  
Reserved  
Reserved  
DTDC  
Reserved  
Reserved  
Buffer Full Ratio, Buffer Empty Ratio, Bus Inactivity Limit and Connect Time Limit fields are not supported by the  
drive if set to non-ZERO values a CHECK CONDITION status is returned with ILLEGAL REQUEST sense key  
set.  
Disconnect Time Limit: This field indicates the minimum time in 100 microsecond increments that the drive will  
wait after releasing the SCSI bus before attempting re-selection. This will be 0 and this is non-changeable field.  
Maximum Burst Size: This field defines the maximum amount of data that the drive will transfer during a data  
phase before disconnecting. This value is expressed in increments of 512 bytes. This is non-changeable field and  
will be 4000h.  
Note: 512 (200h) × 16384 (4000h) = 8388608(8 Mbytes) which means that the Maximum Burst Size is  
approximately equal to SDX-1100V Buffer size for SCSI side.  
FAIR ARBITRATION: This field indicates whether the drive will use fair or unfair arbitration when requesting an  
interconnect tenancy. Setting this field to 1 will enable the SCSI Bus Fairness protocol. Setting this field to zero will  
disable it. The drive determines fairness by monitoring prior arbitration attempts by other SCSI devices. It will  
postpone arbitration for itself until all lower priority SCSI devices that previously lost arbitration either win a  
subsequent arbitration or discontinue their arbitration attempts. It will monitor the arbitration attempts of the other  
SCSI devices and refresh the fairness register with the SCSI ID’s of any lower priority SCSI devices that lost  
arbitration. This field is not support.  
DTDC: This field defines further restrictions on when a disconnect is permitted.  
DTDC  
Description  
00b  
Data transfer disconnect control is not used. Disconnect is controlled by the other field in this  
page.  
01b  
A target will not attempt to disconnect once the data transfer of a command has started until all  
data the command is to transfer has been transferred. The connect time limit and bus inactivity  
limit are ignored during the data transfer.  
10b  
11b  
Reserved  
A target will not attempt to disconnect once the data transfer of a command has started until  
the command is complete. The connect time limit and bus inactivity limit are ignored once data  
transfer has started.  
6-44  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
MODE SELECT  
6.Command Specification  
6.7.2. Control Mode Page (0Ah)  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
PS (0)  
Reserved  
Page Code (0Ah)  
1
2
Page Length (0Ah)  
Reserved  
3
Reserved  
4
Reserved  
5
Reserved  
AUTOLOAD MODE  
6
7
8
9
10  
11  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
The AUTOLOAD MODE field specifies the action to be taken by the drive when a media is inserted.  
Table 6-44: AUTOLOAD MODE field  
Value  
Definition  
000b  
001b  
010b  
Medium will be loaded for full access  
Medium will be loaded for medium auxiliary memory access only  
Medium will not be loaded (not support)  
Reserved  
011b-111b  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-45  
6.Command Specification  
MODE SELECT  
6.7.3. Data Compression Control Page (0Fh)  
The drive supports the Data Compression Control Page which has the following format:  
Table 6-45: Data Compression Control Page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
PS (0)  
Reserved  
Page Code (0Fh)  
Page Length (0Eh)  
Reserved  
Reserved  
DCE  
DDE  
DCC (1)  
3
RED (00h)  
4
(MSB)  
Compression Algorithm (0003h)  
7
8
(LSB)  
(LSB)  
(MSB)  
Decompression Algorithm (0003h)  
11  
12  
13  
14  
15  
Reserved  
Reserved  
Reserved  
Reserved  
This page specifies the parameters for the control of the data compression capability of the drive.  
DCE: A Data Compression Enable (DCE) bit of one indicates that data compression is enabled. When this bit is  
set, data sent to the device by the initiator will be processed using the selected compression algorithm before  
being written to the medium. A DCE bit of ZERO indicates that data compression is disabled.  
DCC: A Data Compression Capable (DCC) bit of one indicates that the drive supports data compression and will  
process data sent to it for transferal to the medium using the selected compression algorithm when the DCE bit is  
one. A DCC bit of ZERO indicates that the device does not support data compression. This will be a  
non-changeable field. The SDX-1100V has the capability to decompress data and will set this bit to a one.  
DDE: A Data Decompression Enable (DDE) bit of one indicates that data decompression is enabled. The  
SDX-1100V will always decompress the data. Setting this bit to ZERO has no effect.  
RED: The Report Exception on Decompression (RED) field indicates the device’s response to a boundary  
condition caused by a change in the format of recorded data from:  
uncompressed to compressed or compressed to uncompressed  
This field is not supported and will be always set to 00b.  
Compression Algorithm: The compression algorithm field indicates the compression algorithm the drive will use  
to process data sent to it by the initiator (if the DCE bit is one).  
The SDX-1100V supports the ALDC1 data compression algorithm which is identified by the value: 00 00 00 03h in  
the compression algorithm field. A value of ZERO will indicate that no compression algorithm is currently selected.  
Any other values in this field will cause the drive to return a CHECK CONDITION status the sense key will be set  
to ILLEGAL REQUEST.  
Decompression Algorithm: For MODE SELECT the decompression algorithm  
field indicates the  
decompression algorithm selected by the initiator for use in subsequent decompression of data encountered on  
the medium.  
The SDX-1100V can decompress data recorded with the ALDC1 algorithm therefore this field can be set to 00 00  
00 03h. However, the SDX-1100V is capable of automatic recognition of the compression algorithm used to  
process the data encountered on the medium. Therefore, the drive will override the value in the decompression  
field (if is set to ZERO) for a subsequent read operation when ALDC1 compressed data is detected on the media.  
For the MODE SENSE command, the decompression algorithm field reflects compression algorithm which was  
used to process the data most recently encountered on the medium, during a read operation.  
A value of ZERO will indicate that the data encountered on the medium during the most recent read operation was  
uncompressed.  
6-46  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
MODE SELECT  
6.Command Specification  
6.7.4. Device Configuration Page (10h)  
The drive supports the Device Configuration Page which has the following format:  
Table 6-46: Device Configuration Page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
PS (0)  
Reserved  
CAP  
Page Code (10h)  
Page Length (0Eh)  
Reserved  
CAF (0)  
Reserved  
3
Active Partition  
4
Write Buffer Full Ratio (00h)  
5
6
Read Buffer Empty Ratio (00h)  
Write Delay Time (0064h)  
(MSB)  
7
8
9
10  
11  
12  
13  
14  
15  
(LSB)  
REW  
DBR (0)  
BIS (1)  
RSmk  
AVC (0)  
Gap Size (00h)  
EEG (1) SEW  
SOCF (00b)  
RBO (0)  
EOD Defined (000b)  
(MSB)  
Reserved  
Buffer Size at Early Warning (00 00 00h)  
(LSB)  
Select Data Compression Algorithm (00h)  
Reserved  
CAP: The Change Active Partition bit, when set to one, indicates that the partition is changed to the one specified  
by the Active Partition Field. This is a feature supported by the drive and is discussed below.  
CAF: The Change Active Format bit, set to one, indicates that the active format is to be changed to that set in the  
Active Format Field.  
Active Partition: Indicates the current partition number in use on the medium.  
Setting this field to a non-existing partition number will be rejected by the drive with a CHECK CONDITION status  
and the ILLEGAL REQUEST sense key set.  
Write Buffer Full Ratio and Read Buffer Empty Ratio: These fields are not supported by the drive. Setting  
these fields to anything other than ZERO will cause the drive to return a CHECK CONDITION status and an  
ILLEGAL REQUEST sense key.  
The drive implements an algorithm which automatically adjusts these ratios so as to maximize streaming to the  
initiator.  
Write Delay Time: This field indicates the maximum time, in 100 millisecond increments, that the drive will wait  
with a partially full buffer before forcing the data to tape. The drive defaults to a 10 second delay since the last  
SCSI bus activity before the data is flushed from the buffer to the tape. If Write Delay Time is set to ZERO, the  
drive will wait indefinitely for the data group to be filled. This field is non changeable.  
DBR: This field is not supported and will be always set to ZERO.  
BIS: Block Identifiers Supported is set to one to indicate that the media has recorded information about the logical  
block ID relative to the partition.  
The DBR and BIS bit are only valid on a MODE SENSE command where they are used to report drive capabilities.  
These bits are ignored by the drive on a MODE SELECT command. The drive will not return a CHECK  
CONDITION.  
RSmk: The Report Setmark bit, when set to one, indicates that Setmarks will be reported to the drive. When  
ZERO, Setmarks are NOT reported. The default is one, Setmarks reported.  
AVC: Automatic Velocity Control function is not supported by the drive and if this bit is set a CHECK CONDITION  
status is returned with an ILLEGAL REQUEST sense key.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-47  
6.Command Specification  
MODE SELECT  
SOCF: Stop on Consecutive Filemarks function is not supported by the drive and if this bit is set a CHECK  
CONDITION status is returned with an ILLEGAL REQUEST sense key.  
RBO: This field is not supported. If this bit is set a CHECK CONDITION status is returned with an ILLEGAL  
REQUEST sense key.  
REW: The Report Early-Warning End-of –Media bit is set to ZERO indicates the drive will not report the  
Early-Warning condition on reads but will report Early-Warning on writes before the physical End-Of –Partition.  
The REW bit is changeable. A value of ONE indicates that the drive will report the Early-Warning condition on  
writes and reads.  
Gap Size: This field is not supported by the SDX-1100V and will be set to ZERO otherwise a CHECK CONDITION  
with an ILLEGAL REQUEST sense key will be returned.  
EOD Defined: This field will always be set to ZERO so that the drive will use its default EOD definition to detect  
and generate EOD. Any other value will cause the drive to return a CHECK CONDITION status with an ILLEGAL  
REQUEST sense key set.  
EEG: The Enable EOD Generation bit will always be set to indicate that drive will generate an EOD. The drive  
generates an EOD prior to any change of direction, if that change follows a write-type operation. This bit is only  
valid on the MODE SENSE command where it is used to report drive capabilities. This bit is ignored by the drive  
on a MODE SELECT command. The drive will not return a CHECK CONDITION.  
SEW: The Synchronize at Early-Warning bit is set to ONE indicates buffered write data, Filemarks and Setmarks  
at or after Early-Warning End-of-Media will be written to the Medium. The SEW bit changeable. A value of ZERO  
indicates that the target will retain any unwritten buffered data, Filemarks, or Setmarks in the buffer when logical  
Early-Warning is encountered. The default is 1.  
Buffer Size at Early Warning: This field is not supported by the drive and if set, a CHECK CONDITION status is  
returned with an ILLEGAL REQUEST sense key set.  
Select Data Compression Algorithm: The SDX-1100V supports the Data Compression Page and that page will  
be used instead of this field to control Data Compression. This field is not supported by the drive and if set, a  
CHECK CONDITION status is returned with an ILLEGAL REQUEST sense key set.  
6-48  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
MODE SELECT  
6.Command Specification  
6.7.5. Medium Partitions Parameter Page (11h)  
The drive supports the Medium Partitions Parameter Page, which has the following format:  
Table 6-47: Medium Partitions Parameter Page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
PS (0)  
Reserved  
Page Code (11h)  
1
2
3
Page Length (0Ah)  
Maximum Additional Partitions (0h)  
Additional Partitions Defined (00h)  
4
FDP (0)  
SDP (0)  
IDP  
PSUM  
Reserved  
5
Medium Format Recognition (03h)  
6
Reserved  
Partition Units  
7
Reserved  
8
9
10  
11  
(MSB)  
(MSB)  
Partition Size (Partition 0)  
(LSB)  
(LSB)  
Obsolete  
Warning: This page is used to format a tape to one partition. Extreme care must be taken with this parameter  
page to avoid accidental reformatting of a tape. Reformatting will destroy all previous data.  
Maximum Additional Partitions: This field is only valid on MODE SENSE where it is used to report the maximum  
number of additional partitions that are supported by the drive. This field is non-changeable, however it accepts all  
values as a don’t care. This number is the maximum number of additional partitions supported.  
Additional Partitions Defined: This field specifies the number of additional partitions to be defined for the tape  
based on the IDP bit. The maximum allowed is the value returned in the Maximum Additional Partitions field.  
FDP: The Fixed Data Partitions bit is not supported by the drive and if set, a CHECK CONDITION status is  
returned with an ILLEGAL REQUEST Sense Key set.  
SDP: The Select Data Partitions bit is not supported by the drive and if set, a CHECK CONDITION status is  
returned with an ILLEGAL REQUEST Sense Key set.  
IDP: The initiator Defined Partitions bit is supported and, when set to one, indicates that the tape will be partitioned  
based on the Additional Partitions Defined field, PSUM and Partition Size field.  
PSUM: The Partition Size Unit of Measured field defines the units in which the Partition Size value selects the  
partition size.  
Table 6-48: PSUM values  
Code  
00b  
01b  
10b  
11b  
Description  
Support  
Not Support  
Not Support  
Support  
bytes (unit of one)  
kilobytes (103 bytes)  
Megabytes (106 bytes)  
10 (PARTITION UNITS) bytes  
Support  
Partition Units: This field defines the size of the partition size descriptors when the PSUM field is set to 11b. A  
n
value of n in the PARTITION UNITS field will define the units of the partition size descriptors as 10 bytes.  
SDX-1100V Supports following combinations.  
PSUM  
Partition Units  
7
11b  
11b  
0111b : 10 byte (AIT-3)  
9
1001b : 10 byte (AIT-3Ex/AIT-4/AIT-5 Mode)  
If another value is set these fields, a CHECK CONDITION status is returned with an ILLEGAL REQUEST sense  
key set.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-49  
6.Command Specification  
MODE SELECT  
Medium Format Recognition: This field is only valid on a MODE SENSE and is set to 03h to indicate that the  
drive is capable of format and partition recognition. This is non-changeable field. It accepts all the value, however  
always returns 03.  
Partition Sizes: This field allows the initiator to allocate the capacity of each partition. It will also allow the initiator  
to reallocate the capacity of previously partitioned tapes.  
If the Additional Partitions Defined fields are set to ZERO, the drive will reformat the tape.  
The size of partition 0 is only valid during Mode Sense and is ignored during Mode Select. For Mode Select only  
partition 1 size is used when Additional Partitions Defined field is set to 01h. Partition 0 size is ignored. Internally,  
the drive computes partition 0 size to be the remaining capacity of the tape. This remaining capacity is the  
maximum uncompressed capacity minus partition 1 size.  
A second way to issue Mode Select Page 11h is to set Page Length to 08h, and set bytes 8 and 9 to partition 1  
size. In this method partition 0 size is not sent, but this size is still computed as defined above. In either case,  
Mode Sense will report partition 0 and partition 1 sizes.  
6-50  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
MODE SELECT  
6.Command Specification  
6.7.6. Informational Exceptions Control Page (1Ch)  
The Informational Exceptions control page defines the methods used by the target to control the reporting and the  
operations of specific informational exception conditions.  
Table 6-49 : Informational Exceptions Control Page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
PS(0)  
Perf(0)  
(MSB)  
(MSB)  
Reserved  
Page Code (1Ch)  
Page Length (0Ah)  
DExcpt  
Reserved (0)  
Test  
Reserved LogErr (0)  
MRIE  
Reserved  
Interval Timer  
(00 00 00 00h)  
Report Count/Test Flag Number  
7
8
(LSB)  
(LSB)  
11  
LogErr: This field is not supported.  
DE xcpt: The Disable Exception Control (DE xcpt ) bit of ZERO indicates information operations will be enabled.  
The reporting of information exception conditions when the Dexcpt bit is set to ZERO is determined from the  
method of reporting informational exception field. The Dexcpt bit of ONE indicates the drive will be disable all  
information exception operations. The method of reporting informational exceptions field is ignored when Dexcpt is  
set to ONE.  
Test: The Test bit of ZERO indicates the drive will not generate any test/false informational exception condition.  
This bit of ONE indicates the drive will generate test/false informational exception conditions. The default value of  
Test is ZERO.  
Perf: The Performance bit (Per) of ZERO indicates that informational exception operations that are the cause of  
delays are acceptable. The Perf bit of ONE indicates the drive will be set to ZERO otherwise a CHECK  
CONDITION with an ILLEGAL REQUEST sense key set.  
MRIE: The Method of Reporting Informational Exceptions field (MRIE) indicates the method used by the drive to  
report informational exception conditions. If the informational exception condition was generated by an event that  
caused a real CHECK CONDITION to occur, then this real CHECK CONDITION will over-ride the CHECK  
CONDITION defined in MRIE modes. The drive supports value 0, 3 and 4.  
When MRIE is set to 0, this method instructs the drive not to report informational exception conditions. When  
MRIE is set to 4 (Unconditionally generate RECOVERED ERROR), this method instructs the drive to report  
informational exception conditions by returning a CHECK CONDITION status on the next SCSI command  
(excluding INQUIRY, REQUEST SENSE and REPORT LUNS) after an informational exception condition was  
detected. The sense key will be set to RECOVERED ERROR and the ASC will indicate the cause of the  
information exception condition (which is 5D/00h). The command that has the CHECK CONDITION will complete  
without error before any exception condition may be reported (and thus does not need to be reported).  
Interval Timer: This field is not supported by the drive and if set, a CHECK CONDITION status is returned with an  
ILLEGAL REQUEST sense key set.  
Report Count /Test Flag Number: This field has a dual purpose. When Test bit is set to ZERO, the value of this  
field in the MODE SELECT data represents the Report Count. When a MODE SELECT command is sent with the  
Test bit it set to ONE, the value of this field in the MODE SELECT data represents the Test Flag Number, which is  
never returned in response to a MODE SENSE command. Valid values of Test Number are –64 to 64 and 32767  
(7FFFh). Negative numbers are represented using the 2’s complement method. If the Test Flag Number is set to  
an invalid value, the MODE SELECT command will return CHECK CONDITION with sense key set to ILLEGAL  
REQUEST and extended sense set to Invalid Field in Parameter list.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-51  
6.Command Specification  
MODE SELECT  
6.7.7. AIT Device Configuration Page (31h)  
Note 1: The values set by Mode Select Page 31h become valid after the Mode Select Page 11h command is  
completed.  
Note 2: The values reported by Mode Sense Page 31h always indicate a status of the cassette. It is not a mode  
condition of the drive.  
Note 3: For initializing AIT native mode cassette, Mode Select Page 31h must be issued before Mode Select  
Page 11h.  
Table 6-50: AIT Device Configuration Page  
Bit  
Byte  
7
6
5
4
3
2
1
0
0
1
Reserved  
Page Code (31h)  
Page Length (08h)  
ULPBOT PRTH (0)  
SPAN (0Ah)  
PONEJ  
(0)  
2
AIT  
DEVICE  
WORM  
ABS (1)  
SysLogAlive  
3
4
5
6
7
8
9
MIC  
Reserved  
Reserved  
Reserved  
WC  
Reserved  
Reserved  
Reserved  
AIT: The AIT-bit is a changeable bit. The status of the AIT-bit is valid after a cassette is initialized. Until then the  
AIT-bit indicates ZERO, even if the bit is set with the Mode Select command.  
0 - DDS emulation mode  
1 - AIT native mode (default)  
Device:  
0 - Do not create optional device area. (DDS mode only)  
1 - Create optional device area. (AIT mode only)  
ABS:  
0 - Do not create the Absolute Volume Map information. (Not Supported)  
1 - Create and maintain the Absolute Volume Map information.  
ULPBOT:  
0 - Load/unload is performed at the Optional Device Area, except for partition 0 (Not Supported).  
1 - Load/ unload must be performed at the device area located at PBOT, even if there is an Optional Device Area.  
(default)  
PRTH:  
0 - Allow Thread; Thread the tape after cartridge insertion, and return ready status. (default)  
1 - Prevent Thread; Do not thread the tape after cartridge insertion, and return ready status immediately after the  
cartridge is loaded. The tape will automatically be threaded when a media access SCSI command (Erase, Locate,  
Mode Select Page 11h, Read, Read Position, Seek Block, Space, Write, and Write Filemark) is received from the  
initiator. (Not Supported)  
6-52  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
MODE SELECT  
6.Command Specification  
PONEJ: This bit is recorded in drive’s EEPROM, and it effects the drive itself. (Not Supported)  
0 - Power On immediate Eject disable. If this bit set to 0, then the cassette will stay in the drive when power is  
applied. (default)  
1 - Power On immediate Eject enable. If this bit set to 1, then cassette will be immediately ejected when power  
is applied to the drive.  
SPAN: The SPAN field is in binary notation. This field is unchangeable. When MIC cartridge is inserted, this field is  
set to 0Ah (00001010b), other values are prohibited.  
SysLogAlive:  
0 0 - System logs located only on tape. (default for SDX-T3N)  
1 1 - System logs located only in MIC. (default for MIC cartridge)  
The SysLogAlive-bits will be set to 00B for non-MIC cartridges, and to 11B for MIC cartridges. Other bit  
combinations are prohibited.  
MIC: This bit is effective for Mode Sense only. If this bit is 0 then MIC has not been detected in the cassette.  
WORM: If this bit is 1, then WORM cassette is detected.  
WC (WORM CAPABLE): If this bit is 0, then this drive does not support WORM cassette. If this bit is 1, then this  
drive support WORM cassette.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-53  
6.Command Specification  
MODE SENSE  
6.8. MODE SENSE (6/10) 1Ah and 5Ah  
Table 6-51: Mode Sense (6) CDB Format  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
5
Operation Code (1Ah)  
DBD  
Reserved  
Reserved  
PCF  
Page Code  
Reserved  
Allocation Length  
Control  
Table 6-52: Mode Sense (10) CDB Format  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
Operation Code (5Ah)  
LLBAA (0) DBD  
Page Code  
Reserved  
PCF  
Reserved  
3-6  
7-8  
9
Reserved  
Allocation Length  
Control  
The MODE SENSE (6/10) commands provide a means to report parameter of default, current and changeable  
configuration parameters. They are complementary to MODE SELECT (6/10) commands. The 6-byte and 10-byte  
commands can be interchanged.  
The format of the data returned is different for the 6-byte and 10-byte commands. See the MODE SELECT (6/10)  
commands for the mode header format differences.  
LLBAA: The LLBAA function is not supported. This field must be ZERO. This field is defined for MODE SENSE 10  
only.  
If this field is not set to 0b for a MODE SENSE (10) command, the command terminates with CHECK CONDITION  
status, the sense key set to ILLEGAL REQUEST, the ASC/ASCQ is set to INVALID FIELD IN CDB.  
DBD: A Disable Block Descriptors (DBD) bit of ZERO indicates that the target may return ZERO or more block  
descriptors in the returned MODE SENSE data at the target's discretion. A DBD bit of one specifies that the target  
will not return any block descriptors in the returned MODE SENSE data.  
PC: The Page Control field indicates the type of page parameter values to be returned to the initiator as shown  
below.  
Table 6-53: Page Control field values  
Bit 7  
Bit 6  
Parameter Values  
Description  
0
0
Current Values  
This is the normal default situation where the drive returns to the  
initiator its current configuration. Page fields not supported are set to  
ZERO by the drive.  
0
1
Changeable Values  
These are any values which a initiator may alter in a subsequent  
MODE SELECT command. Any field that the drive allows to be  
changed is set to one. Otherwise the field is set to ZERO.  
These are the default values on power-up  
1
1
0
1
Default Values  
Saved Values  
Not supported by the drive  
Page Code: This allows the initiator to select any specific or all pages supported by the drive.  
6-54  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
MODE SENSE  
6.Command Specification  
Supported page codes are:  
Table 6-54: Supported MODE SENSE Page Codes  
Page Code  
00h  
Description  
Standard Sense  
02h  
Disconnect-Reconnect  
0Ah  
Control Mode Page  
0Fh  
10h  
Data Compression Control  
Device Configuration  
11h  
1Ch  
31h  
32h  
33h  
Medium Partitions Parameter  
Informational Exception Control  
AIT Device Configuration  
Append Partition (Not Support)  
Delete Partition (Not Support)  
Return All Pages  
3Fh  
If the initiator selects any other values, the drive will terminate the command with a CHECK CONDITION status  
and an ILLEGAL REQUEST sense key set.  
Note: If the Page Code is ZERO, the drive will only return the four-byte header and the eight-byte block descriptor  
and terminate the command with GOOD status.  
Allocation Length: The Allocation Length specifies the number of bytes that the initiator has allocated for  
returned MODE SENSE data. An Allocation Length of ZERO means that the drive will return no MODE SENSE  
data. This is not considered an error and GOOD status will be returned. Any other value indicates the maximum  
number of bytes that can be transferred. The drive terminates the DATA-IN phase when the Allocation Length  
bytes have been transferred or when all available MODE SENSE data has been transferred to the initiator,  
whichever is less. The Allocation Length must fall on header or block descriptor boundaries. If the Allocation  
Length does not fall on these boundaries then the drive returns CHECK CONDITION status with the ILLEGAL  
REQUEST sense key set, unless the value is greater than that required for the specified page.  
If the Page Code is ZERO, the initiator requires MODE SENSE to only return the four-byte header the one  
eight-byte block descriptor, therefore the Allocation Length must be set to 0Ch. The value of the Page Control  
Field is then not checked by the drive and may be set to any value.  
If the Allocation Length is non-ZERO, it must be set to 4 or more. If the Allocation length is non-ZERO and less  
than 4, the drive will return CHECK CONDITION status and ILLEGAL REQUEST sense key.  
The MODE SENSE data contains a four-byte header, followed by eight-byte block descriptor, followed by ZERO or  
more variable length pages, depending on the Page Code and the Allocation Length.  
Table 6-55: MODE SENSE data  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
Mode Data Length  
Medium Type (00h)  
Buffered Mode (001b)  
Block Descriptor Length (08h)  
WP  
Speed (00h)  
3
4
5
6
7
Density Code (33h)  
Number of Blocks (00 00 00h)  
Reserved  
(MSB)  
(LSB)  
(LSB)  
8
9
10  
11  
(MSB)  
Block Length  
Mode Data Length: The mode data length specifies the length in bytes of the following MODE SENSE data that is  
available to be transferred during the DATA-IN phase. The mode data length does not include itself but does  
include the total length of all requested MODE SENSE pages.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-55  
6.Command Specification  
MODE SENSE  
Media Type: The media value will be ZERO as only one media type is supported.  
WP: A Write Protected bit of ZERO indicates that the tape is write enabled. A Write Protected bit of one indicates  
that the tape is write protected.  
Buffered Mode: if this bit is set to ZERO, the drive will not report a GOOD status on WRITE commands until the  
data blocks are actually written on the tape. If set, the drive is in buffered mode and may report a GOOD status  
on WRITE commands as soon as the data block has been transferred to the drive’s buffer. One or more blocks  
may be buffered prior to writing to the tape. (Not support)  
If the Buffered Mode field is ONE, then drive reports GOOD status on WRITE commands as soon as the data  
block has been transferred to the buffer, this field will be set to ONE.  
Speed Field: will return ZERO as the drive only supports one speed.  
Block Descriptor Length: returns a value of 8, which specifies the length in bytes of the following Block  
Descriptor. The drive only returns a single Block Descriptor.  
Density Code: Refer to Table 6-40 regarding the Density Code field.  
Number of Blocks: The Number of Blocks field is ZERO, indicating that an unspecified (or unknown) number of  
the remaining logical blocks on the tape may have the media characteristics specified by the Block Descriptor.  
Block Length: The Block Length field specifies the length in bytes of each logical block transferred over the SCSI  
bus. A Block Length of ZERO indicates that the length is variable. Any other value indicates the number of bytes  
per block that the drive must handshake over the bus. This establishes Block Length such that the Transfer Length  
for read, write command will be a block count not a byte count.  
Note: It is value of this field together with the Fixed bit Field in the READ, or WRITE commands that determine  
whether the drive is in Fixed or Variable block mode. The minimum length is 4 and it always will be a multiple of 4.  
Page Descriptor: The supported pages are fully documented in the MODE SELECT clause of this Chapter.  
PS: When the Page Savable bit is set, this indicates that the page contains saved parameters. This bit will never  
be set as there is no non-volatile RAM on the drive into which parameter data may be saved.  
All fields not supported by the drive must be set to ZEROs.  
6-56  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
PERSISTENT RESERVE IN  
6.Command Specification  
6.9. PERSISTENT RESERVE IN 5Eh  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (5Eh)  
1
2
3
4
5
6
7
8
9
Reserved  
SERVICE ACTION  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
(MSB)  
Allocation Length  
(LSB)  
Control  
The PERSISTENT RESERV IN command is used to obtain about persistent reservations and reservation keys  
that are active within a drive.  
The actual length of the PERSISTENT RESERVE IN parameter data is available in a parameter data field.  
SERVICE ACTION: The service action codes are defined:  
Table 6-56: PERSISTENT RESERVATION IN Service action codes  
Code  
00h  
01h  
Name  
READ KEYS  
READ RESERVATION  
Description  
Reads all registered Reservation Keys  
Reads the current persistent reservations  
Reserved  
02h-1fh Reserved  
READ KEYS – The READ KEYS service action that the drive return a parameter list containing a header and a list  
of each current registered initiator’s reservation key. If multiple initiators have registered with the same key, then  
that key value will be listed multiple times, once for each such registration.  
READ RESERVATIONS – The READ RESERVATIONS service action requests that the drive return a parameter  
list containing a header and the persistent reservation(s), if any, that is present in the drive. Multiple persistent  
reservations may be returned only if element reservations are present.  
Allocation Length: The Allocation Length field indicates how much space has been reserved for the returned  
parameter list. If length is not sufficient to contain the entire parameter list, the first portion of the list will be  
returned. This will not be considered an error. If the remainder of the list is required, the application client will send  
a new PERSISTENT RESERV IN command with a Allocation Length field large enough to contain the entire list.  
The returned parameter data provided in response to a PERSISTENT RESERVE IN command with the READ  
KEYS service action has the following format:  
Table 6-57: PERSISTENT RESERVATION IN parameter data for READ KEYS  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
(MSB)  
(MSB)  
GENERATION  
3
4
7
(LSB)  
(LSB)  
Additional Length  
Reservation Key list  
First reservation key  
8
15  
n-7  
n
(MSB)  
(MSB)  
(LSB)  
(LSB)  
Last reservation key  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-57  
6.Command Specification  
PERSISTENT RESERVE IN  
GENERATION: This field will contain a 32-bit counter maintained by the drive that will be incremented every time  
a PERSISTENT RESERVE OUT command requests a REGISTER, a CLEAR, a PREEMPT, or a PREEMPT AND  
ABORT service action. The counter will not be incremented by a PERSISTENT RESERVE IN command, by a  
PERSISTENT RESERVE OUT command that performs a RESERVE or RELEASE service action, or by a  
PERSISTENT RESERVE OUT command that is not performed due to an error or reservation conflict. The  
generation value will be set to 0 as part of the power on reset process.  
Additional Length: This filed contains a counter of the number of bytes in the Reservation key list. If the  
allocation length specified by the PERSISTENT RESERVE IN command is not sufficient to contain the entire  
parameter list, then only the bytes from 0 to the maximum allowed allocation length will be sent to the application  
client. The incremental remaining bytes will be truncated, although the Additional Length field will still contain the  
actual number of bytes in the reservation key list without consideration of any truncation resulting from an  
insufficient allocation length. This will not be considered an error.  
Reservation Key: The reservation key list contains the 8-byte reservation keys for all initiators that have  
registered through all ports with drive.  
The returned the parameter data provided in response to a PERSISTENT RESERVE IN command with the READ  
RESERVATION service action has the following format:  
Table 6-58: PERSISTENT RESERVATION IN parameter data for READ RESERVATION  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
3
4
7
8
(MSB)  
(MSB)  
(MSB)  
GENERATION  
Additional Length  
(LSB)  
(LSB)  
(LSB)  
Reservation descriptor  
23  
GENERATION: This field will be defined for the PERSISTENT RESERVE IN READ KEYS parameter data.  
Additional Length: This filed contains a counter of the number of bytes to follow in Reservation descriptor. If the  
allocation length specified by the PERSISTENT RESERVE IN command is not sufficient to contain the entire  
parameter list, then only the bytes from 0 to the maximum allowed allocation length will be sent to the application  
client. The incremental remaining bytes will be truncated, although the Additional Length field will still contain the  
actual number of bytes of Reservation descriptor and will not be affected by the truncation. This will not be  
considered an error.  
Reservation descriptor: The format of this field is defined in Table 6-59.  
Table 6-59: PERSISTENT RESERVATION IN Reservation Descriptor  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
7
8
11  
12  
13  
14  
15  
(MSB)  
(MSB)  
Reservation Key  
(LSB)  
(LSB)  
SCOPE-SPECIFIC Address  
(0 0 0 0)  
Reserved  
SCOPE  
TYPE  
Obsolete  
The Reservation descriptor for each reservation will contain the Reservation Key under which the persistent  
reservation is held. The TYPE and SCOPE of each persistent reservation as present in the PERSISTENT  
RESERVE OUT command that created the persistent reservation will be returned.  
SCOPE-SPECIFIC Address: The drive does not support an Element reservation. This field will be set to zero.  
6-58  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
PERSISTENT RESERVE IN  
6.Command Specification  
SCOPE: The value in this field indicates whether a persistent reservation applies to an entire logical unit to an  
element. The value in this filed are defined in Table 6-60.  
Table 6-60: PERSISTENT RESERVATION SCOPE Codes  
Code  
0h  
1h  
Name  
Description  
Persistent reservation applies to the full logical unit  
Obsolete  
Logical unit  
Obsolete  
2h  
3h-fh  
Element (not supported in this drive) Persistent reservation applies to the specified element  
Reserved Reserved  
Logical unit: A SCOPE value of logical unit indicates that the persistent reservation applies to the entire logical  
unit. The logical unit scope will be implemented by all targets that implement PERSISTENT RESERVE OUT.  
Element: A SCOPE filed value of Element indicates that the persistent reservation applies to the element of the  
logical unit defined by the SCOPE-SPECIFIC Address field in the PERSISTENT RESERVE OUT parameter list.  
The drive do not support it.  
TYPE: The value in the TYPE filed specify the characteristics of the persistent reservation being established for all  
data blocks within the element or within the logical unit. Table 6-61 defines the characteristic of the different type  
values. For each persistent reservation type, Table 6-61 lists code value and describes the required target support.  
In this table, the description of required target support is divided in two paragraphs. The first paragraph defines the  
required handling for read operations. The second paragraph defines the required handling for write operations.  
Table 6-61: PERSISTENT RESERVATION TYPE Codes  
Code  
0h  
1h  
Name  
Write  
Description  
Obsolete  
Reads Shared: Any application client on any initiator may execute tasks that  
request transfers from the storage medium or cache of the logical unit to the  
initiator.  
Exclusive  
Writes Exclusive: Any task from any initiator other than the initiator holding the  
persistent reservation that requests a transfer from the initiator to the storage  
medium or cache of the logical unit will result in a reservation conflict.  
Obsolete  
Reads Exclusive: Any task from any initiator other than the initiator holding the  
persistent reservation that requests a transfer from the storage medium or cache of  
the logical unit will result in a reservation conflict.  
2h  
3h  
Exclusive  
Access  
Write Exclusive: Any task from any initiator other than the initiator holding the  
persistent reservation that requests a transfer from the initiator to the storage  
medium or cache of the logical unit will result in a reservation conflict.  
Obsolete  
Reads Shared: Any application client on any initiator may execute tasks that  
request transfers from the storage medium or cache of the logical unit to the  
initiator.  
Writes Exclusive: Any task from any initiator other than the initiator holding the  
persistent reservation that requests a transfer from the initiator to the storage  
medium or cache of the logical unit will result in a reservation conflict.  
Reads Exclusive: A task that requests a transfer from the storage medium or  
cache of the logical unit to an initiator that has not previously requested a  
REGISTER service action with the drive will result in a reservation conflict.  
Write Exclusive: Any task from any initiator other than the initiator holding the  
persistent reservation that requests a transfer from the initiator to the storage  
medium or cache of the logical unit will result in a reservation conflict.  
4h  
5h  
Write  
Exclusive-  
Registrants  
Only  
6h  
Exclusive  
Access-  
Registrants  
Only (not  
supported in  
this drive)  
Reserved  
7h-Fh  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-59  
6.Command Specification  
PERSISTENT RESERVE OUT  
6.10. PERSISTENT RESERVE OUT 5Fh  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (5Fh)  
1
2
3
4
5
6
7
8
9
Reserved  
SERVICE ACTION  
TYPE  
SCOPE  
Reserved  
Reserved  
Reserved  
Reserved  
(MSB)  
Parameter List Length (18h)  
(LSB)  
Control  
The PERSISTENT RESERVE OUT command is used to request service actions that reserve a logical unit or  
element for the exclusive or shared used if a particular initiator. The command uses other service actions to  
manage and remove such reservations. The command will be used in conjunction with the PERSISTENT  
RESERVE IN command and will not be used with the RESERVE and RELEASE commands.  
An initiator performing PERSISTENT RESERVE OUT service actions is identified by a reservation key provided by  
the application client. An application client may use the PERSISTENT RESERVE IN command to identify which  
initiators are holding a persistent reservation and use the PERSISTENT RESERVE OUT command to preempt  
that reservation if required.  
If a PERSISTENT RESERVE OUT command is attempted, but there are insufficient drive resources to complete  
the operation, the drive will return a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST  
and the additional sense data will be set to INSUFFICIENT REGISTRATION RESOURCES.  
The PERSISTENT RESERVE OUT command contains fields that specify a persistent reservation service action,  
the intended scope of the persistent reservation, and the restrictions caused by the persistent reservation. The  
TYPE and SCOPE fields are defined in 6.9. If a SCOPE filed specifies a scope that is not implemented, the drive  
will return a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST and additional sense  
data will be set to INVALID FIELD IN CDB.  
Fields contained in the PERSISTENT RESERVE OUT parameter list specify the information required to perform a  
particular persistent reservation service action.  
The parameter list will be 24 bytes in length and the Parameter List Length field will contain 24(18h). If the  
parameter list length is not 24, the drive will return a CHECK CONDITION status. The sense key will be set to  
ILLGAL REQUEST and the additional sense data will be set to PARAMETER LIST LENGTH ERROR.  
SERVICE ACTION: When processing the PERSISTENT RESERVE OUT service actions, the drive will increment  
the generation value as specified in 6.9.  
Table 6-62: PERSISTENT RESERVE OUT SERVICE ACTION codes  
Code  
00h  
01h  
Name  
REGISTER  
RESERVE  
Description  
Register a reservation key with the drive  
Create a persistent reservation having a specified SCOPE and TYPE. The  
SCOPE and TYPE of a persistent reservation are defined in 6.9  
Releases the selected reservation for the requesting initiator.  
Clears all reservation keys and all persistent reservations.  
02h  
03h  
04h  
05h  
RELEASE  
CLEAR  
PREEMPT  
Preempts persistent reservations from another initiator.  
PREEMPT & Preempts persistent reservations from another initiator and aborts the task set  
ABORT for the preempted initiator.  
06h-1Fh Reserved  
The parameter list required to perform the PERSISTENT RESERVE OUT command has the following format:  
6-60  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
PERSISTENT RESERVE OUT  
6.Command Specification  
Table 6-63: PERSISTENT RESERVE OUT parameter list  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
7
8
15  
16  
19  
20  
21  
22  
23  
(MSB)  
(MSB)  
(MSB)  
Reservation Key  
(LSB)  
(LSB)  
SERVICE ACTION Reservation Key  
SCOPE-SPECIFIC Address  
(0 0 0 0)  
(LSB)  
APTPL  
Reserved  
Reserved  
Obsolete  
Reservation Key: This field contains an 8-byte value provided by the application client to the drive to identify the  
initiator that is the source of the PERSISTENT RESERVE OUT command. The drive will verify that the  
Reservation Key field in a PERSISTENT RESERVE OUT command matches the registered reservation key for the  
initiator from which the task was received, except for the REGISTER service action for an unregistered initiator  
which will have a reservation key value of zero. If a PERSISTENT RESERVE OUT command specifies a  
Reservation Key field other than the reservation key registered for the initiator, the drive will return a  
RESERVATION CONFLICT status. The reservation key of the initiator will be verified to be correct regardless of  
the SERVICE ACTION and SCOPE field values.  
SERVICE ACTION Reservation Key: This field contains information needed for three service actions; the  
REGISTER, PREEMPT, and PREEMPT AND ABORT service actions. For the REGISTER service action, the  
SERVICE ACTION Reservation Key field contains the new reservation key to be registered. For the PREEMPT  
and PREEMPT AND ABORT service actions, the SERVICE ACTION Reservation Key field contains the  
reservation key of the persistent reservations that are being preempted. The SERVICE ACTION Reservation Key  
field is ignored for all other service actions.  
SCOPE-SPECIFIC Address: The drive do not support an Element reservation, then this field will be set to zero.  
APTPL: The Activate Persistent Through Power Loss(APTPL) bit is not supported by the drive. If this bit is set a  
CHECK CONDITION status is returned with an INVALID FIELD IN PARAMETER LIST.  
The loss of power in the target will release the persistent reservation for all logical units and remove all reservation  
keys.  
Table 6-64 summarizes which field are set by the application client and interpreted by the drive for each service  
action and scope value.  
Table 6-64: PERSISTENT RESERVE OUT service actions and valid parameters  
Service  
Action  
Allowed  
Scope  
Parameters  
SERVICE ACTION  
RESERVATION KEY  
TYPE  
SCOPE- SPECIFIC  
Address  
REGISTER  
RESERVE  
RELEASE  
CLEAR  
PREEMPT  
PREEMPT  
& CLEAR  
ignored  
Ignored  
Valid  
Valid  
Ignored  
Valid  
Valid  
Valid  
Ignored  
Logical unit  
Logical unit  
Ignored  
Logical unit  
Logical unit  
Ignored  
Ignored  
Ignored  
Valid  
Ignored  
Ignored  
Ignored  
Ignored  
Ignored  
Valid  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-61  
6.Command Specification  
PREVENT ALLOW MEDIUM REMOVAL  
6.11. PREVENT ALLOW MEDIUM REMOVAL 1Eh  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (1Eh)  
Reserved  
Reserved  
Reserved  
Reserved  
1
2
3
4
5
Prevent  
Control  
The PREVENT ALLOW MEDIUM REMOVAL command requests that the target enable or disable the removal of  
the medium in the drive. This mechanism is independent of device reservations and the drive will not allow  
medium removal if any initiator currently has medium removal prevented.  
The prevention of medium removal will begin when any initiator issues a PREVENT ALLOW MEDIUM REMOVAL  
command with a prevent bit of one (medium removal prevented). The prevention of medium removal for the logical  
unit will terminate:  
1. Upon a hard RESET condition.  
2. Upon the receipt of a BUS DEVICE RESET message from any initiator  
3. After all initiators that have medium removal prevented issue PREVENT ALLOW MEDIUM REMOVAL  
commands with a prevent bit of ZERO, and the target has successfully performed a synchronize cache  
operation.  
While a prevention of medium removal condition is in effect the target will inhibit mechanisms that normally allow  
removal of the medium by an operator.  
Prevent: When this bit is set, the drive will not eject the tape following an UNLOAD. When it receives the  
UNLOAD, the drive writes any buffered data to tape, rewind, then unthreads the tape from the mechanism. The  
drive does not eject the tape. Setting this bit also completely disables the Eject button on the front panel (except  
emergency eject). This situation remains until the Prevent bit is set to ZERO.  
When this bit is set to ZERO, the drive ejects the cassette following completion of an UNLOAD. The Eject button is  
also re-enabled.  
6-62  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
READ  
6.Command Specification  
6.12. READ 08h  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (08h)  
Reserved  
1
2
3
4
5
SILI  
Fixed  
(LSB)  
(MSB)  
Transfer Length  
Control  
The READ command requests that the target transfer one or more data blocks to the initiator starting with the next  
block on the drive.  
Fixed: This bit specifies the meaning of the Transfer Length field and whether fixed-length or variable-length  
blocks are to be transferred.  
If the Fixed bit is set to ZERO, Variable Block mode is requested. A single block is transferred with the Transfer  
Length specifying the maximum number of bytes the initiator has allocated for the returned data.  
If the Fixed bit is set to one, the Transfer Length specifies the number of blocks to be transferred to the initiator.  
This is valid only if the drive is currently operating in Fixed Block mode, in other words, when it has been instructed  
to use fixed-length blocks with MODE SELECT command. If the Fixed bit is set and the drive is in Variable Block  
mode, the drive will return a CHECK CONDITION status with an ILLEGAL REQUEST sense key.  
When the Transfer Length is ZERO, no data will be transferred and the current position on the logical unit will not  
be changed.  
If the READ command completes successfully in Fixed mode, the drive transfers (current Block Length) X  
(Transfer Length) bytes of data to the Initiator. Upon termination of the READ command, the media will be logically  
positioned after the last block transferred (EOM side).  
SILI: A Suppress Incorrect Length Indicator bit of one indicates that the device will not return a CHECK  
CONDITION status if the only error is that the Transfer Length is not equal to the actual Block Length recorded on  
the media. Note, however, that if the SILI bit is one and the Fixed bit is ZERO, then the device will report a CHECK  
CONDITION, if the requested Transfer Length is less than the actual block size recorded on the medium  
(over-length condition) AND the device is configured to be in Fixed Block mode (i.e. the Block Length field in the  
MODE SELECT/SENSE block descriptor is non-ZERO).  
If the SILI bit is one and the Fixed bit is one, the drive will terminate the command with a CHECK CONDITION  
status with the sense key set to ILLEGAL REQUEST and the additional sense code to ILLEGAL FIELD IN CDB.  
If the SILI bit is not set and the actual Block Length is different from the specified transfer length, a CHECK  
CONDITION status is returned and the Incorrect Length Indicator (ILI) bit and Valid bit will be set to one in the  
Sense Data. The Sense Key field is set to NO SENSE and the Information field is to set the difference (residue)  
between the requested Transfer Length and the actual Block Length, or in Fixed Block mode, the difference  
(residue) between the requested number of blocks and the actual number of blocks read. No more than Transfer  
Length bytes are transferred to the initiator and the tape is logically positioned after the last block transferred  
(EOM side).  
If the drive reads a Filemark, the drive will return a CHECK CONDITION status. the Filemark and Valid bits are set  
and the Sense Key field is set to NO SENSE. The Information field contains the residue count. The Additional  
Sense Code and Additional Sense Code Qualifier fields are set to Filemark Detected. Upon termination, the media  
will be logically positioned after the Filemark (EOM side).  
If, however, the drive encounters a Save-Setmark during a READ, nothing is reported unless the drive has been  
configured through MODE SELECT to Report Save-Setmarks. The drive will ignore the Setmark and continue the  
READ. If the Report Save-Setmarks configuration is enabled then the Filemark and Valid bits are set and the  
Sense Key field is set to NO SENSE. The Information field contains the residue count and the Additional Sense  
Code and Additional Sense Code Qualifier fields are set to Setmark Detected. The tape is logically positioned after  
the Save-Setmark (EOM side).  
If the drive detects EOD during the READ, the drive will return a CHECK CONDITION status and the Valid bit is  
set and the Sense Key field is set to BLANK CHECK. The Information field contains the residue count. The  
Additional Sense Code and Additional Sense Code Qualifier fields are set to EOD DETECTED. Upon termination,  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-63  
6.Command Specification  
READ  
the media will be physically positioned before EOD and after the last block on tape.  
The meaning of EOM is different for READ than for a WRITE type of command. EOM is only reported when the  
physical EOM/P is encountered. The drive returns a CHECK CONDITION status. The EOM and Valid bits are set  
and the Information field contains the residue count. If EOD is not written after the physical EOM/P, the Sense Key  
is set to MEDIUM ERROR and the Additional Sense Code and Additional Sense Code Qualifier fields are set to  
EOM/P Detected. If EOD is written, the Sense Key is set to BLANK CHECK and the Additional Sense Code and  
Additional Sense Code Qualifier fields are set to EOD DETECTED. The tape is physically positioned at EOM/P.  
For a Filemark, a (reported) Save-Setmark, EOD or EOM detected, if the Fixed bit is set, the Information field in  
the REQUEST SENSE Data will be set to the difference (residue) between the requested Transfer Length and the  
actual number of blocks read (not including the Filemark or Save-Setmark). If the Fixed bit is set to ZERO,  
theIInformation field will be set the requested Transfer Length because Filemarks and Save-Setmarks are  
considered to have a byte count of ZERO, (though this does not cause the ILI bit to be set).  
The READ command may return the following sense keys on a CHECK CONDITION:  
NO SENSE: If the actual Block Length is different from the specified Transfer Length and the SILI bit is ZERO, the  
ILI (Incorrect Length Indicator) bit and Valid bit are set to one. The Information field in the Sense Data is set to the  
difference (residue) between the requested Transfer Length and the actual Block Length, or in Fixed Block mode,  
the difference (residue) between the requested number of blocks and the actual number of blocks read (not  
including the incorrect length block). No more than Transfer Length bytes are transferred to the initiator and the  
tape is logically positioned after the block (EOM side).  
If the drive reads a Filemark during this command, it sets the Filemark bit in the REQUEST SENSE data. Upon  
termination, the tape is logically positioned after the Filemark (EOM side). If, however, the drive encounters a  
Save-Setmark during this command, nothing is reported unless the SDX-1100V has been configured through  
MODE SELECT to Report Save Setmarks. If the Report Save Setmarks configuration is enabled then the Valid bit  
and the Additional Sense Key flags are set in the REQUEST SENSE data to indicate that a Save-Setmark has  
been encountered. The tape is also logically positioned after the Save-Setmark (EOM side).  
For both a Filemark and a reported Save-Setmark, if the Fixed bit is one, the Information field in the REQUEST  
SENSE data is set to the difference residue between the requested Transfer Length and the actual number of  
blocks read (not including the Filemark or Save-Setmark).  
If the Fixed bit is set to ZERO, the Information field is set to the difference (residue) between the requested  
Transfer Length and the actual number of bytes read. Filemarks and Save-Setmarks are considered to have a  
byte count of ZERO, though this does not cause the ILI bit to be set.  
MEDIUM ERROR: The current block being read or a previously acknowledged WRITE type of operation  
experienced an error probably related to the condition of the tape.  
HARDWARE ERROR: Either a previously acknowledged WRITE type of operation had a major non-media related  
failure or the read itself experienced the failure. The Valid bit is set, and the Information field contains the  
appropriate residue. The meaning of EOM is different in a READ command from that in a WRITE type of  
command. EOM is only reported on physical end-of-media. However, this condition is indistinguishable from other  
fatal servo errors and so is reported as a HARDWARE ERROR.  
BLANK CHECK: If EOD (End-of-Data) was encountered during a read, the sense key is BLANK CHECK, the  
Valid bit is set and the Information field contains the residue count.  
6-64  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
READ ATTRIBUTE  
6.Command Specification  
6.13. READ ATTRIBUTE 8Ch  
The READ ATTRIBUTE command allows an application client to read attribute values from the Medium Auxiliary  
memory (MAM).  
Table 6-65: READ ATTRIBUTE command  
Bit  
Byte  
7
6
5
4
3
2
1
0
0
1
Operation Code (8Ch)  
Reserved  
Service Action  
2
Reserved  
Reserved  
3
4
Reserved  
5
Volume Number(0)  
Reserved  
6
7
Partition Number(0)  
8
(MSB)  
(MSB)  
First Attribute ID  
Allocation Length  
9
(LSB)  
(LSB)  
10  
11  
12  
13  
14  
15  
Reserved  
Control  
If the medium auxiliary memory is not accessible because there is no medium present, the READ ATTRIBUTE  
command will be terminated with a CHECK CONDITION status. The sense key will be set to NOT READY and the  
additional sense code will be set to MEDIUM NOT PRESENT.  
If although medium is present, the Medium Auxiliary Memory is not accessible, the READ ATTRIBUTE command  
will be terminated with a CHECK CONDITION status. The sense key will be set to MEDIUM ERROR and the  
additional sense code will be set to AUXILIARY MEMORY NOT ACCESSIBLE.  
The service actions defined for the READ ATTRIBUTE command are shown in Table 6-66.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-65  
6.Command Specification  
READ ATTRIBUTE  
Table 6-66: READ ATTRIBUTE service action codes  
Code  
Name  
Attribute Values  
Description  
Return attribute values.  
00h  
01h  
Attribute List  
Returns a list of available attribute identifiers, identifiers  
that are not in the nonexistent or unsupported state.  
02h  
Volume List  
Partition List  
Return a list of known Volume Numbers.  
Return a list of known Partition Numbers.  
03h  
04h  
Reserved for SMC-2  
Reserved  
05h – 1Fh  
The VOLUME NUMBER specifies a volume within the Medium Auxiliary Memory. The number of volumes of the  
MAM will equal that of the attached multi-volume medium. If the medium only has a single volume, then its volume  
number will be zero.  
The PARTITION NUMBER specifies a partition within a volume. The number of partitions of the MAM will equal  
that of the attached multi-partition medium. If the medium only has a single partition, then its partition number will  
be zero.  
If the combination of VOLUME NUMBER and PARTITION NUMBER is not valid, the command will be terminated  
with a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST, and the additional sense  
data will be set to INVALID FIELD IN CDB.  
The FIRST ATTRIBUTE IDENTIFIER field specifies the attribute identifier of the first attribute to be returned. If the  
specified attribute identifier is in the unsupported or nonexistent state, the READ ATTRIBUTE will be terminated  
with a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST, and the additional sense  
data will be set to INVALID FIELD IN CDB.  
The ALLOCATION LENGTH field specifies how many bytes have been allocated of the first attribute to be  
returned. If the length is not sufficient to contain the entire parameter list, the first portion of the list will be  
returned. This will not be considered an error. If the remainder of the list is required, the application client will either  
send a new READ ATRRIBUTE command with an ALLOCATION LENGTH field large enough to contain the entire  
parameter list or use the FIRST ATTRIBUTE IDENTIFIER field to restrict the attributes returned.  
The format of parameter data returned by the READ ATTRIBUTE command depends on the service action  
specified.  
6.13.1. ATTRIBUTE VALUES service action  
The READ ATTRIBUTE command with ATTRIBUTE VALUES service action returns parameter data containing  
the attributes specified by the PARTITION NUMBER, VOLUME NUMBER, and FIRST ATTRIBUTE INDENTIFIER  
fields in the CDB. The returned parameter data will contain the requested attributes in ascending numerical order  
by attribute identifier value and in the format shown in Table 6-67.  
6-66  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
READ ATTRIBUTE  
6.Command Specification  
Table 6-67: READ ATTRIBUTE with ATTRIBUTE VALUES service action parameter list format  
7
6
5
4
3
2
1
0
Bit  
Byte  
0
(MSB)  
AVAILABLE DATA (n-3)  
ATTRIBUTE (s)  
3
(LSB)  
4
..  
x
ATTRIBUTE 0  
..  
m
..  
ATTRIBUTE x  
n
The AVAILABLE DATA field will contain the number of bytes of attribute information in the parameter list. If the  
parameter list is truncated as a result of insufficient allocation length, the contents of the AVAILABLE DATA field  
will not be altered.  
6.13.2. ATTRIBUTE LIST service action  
The READ ATTRIBUTE command with ATTRIBUTE LIST service action returns parameter data containing the  
attribute identifiers for the attributes that are not in the unsupported state and not in the nonexistent state in the  
specified partition and volume number. The contents of FIRST ATTRIBUTE IDENTIIER field in the CDB will be  
ignored. The returned parameter data will contain the requested attribute identifiers in ascending numerical order  
by attribute identifier value and the format shown in Table 6-68.  
Table 6-68: READ ATTRIBUTE with ATTRIBUTE LIST service action parameters list format.  
7
6
5
4
3
2
1
0
Bit  
Byte  
0
(MSB)  
AVAILABLE DATA (n-3)  
ATTRIBUTE IDENTIFIER  
ATTRIBUTE IDENTIFIER 0  
3
(LSB)  
4
5
(MSB)  
(MSB)  
(LSB)  
n-1  
n
ATTRIBUTE IDENTIFIER x  
(LSB)  
The AVAILABLE DATA field will contain the number of bytes of attribute in the parameter list. If the parameter list is  
truncated as a result of insufficient allocation length, the contents of the AVAILABLE DATA field will not be altered.  
An ATTRIBUTE IDENTIFIER field is returned for each attribute that is not in the unsupported state and not in the  
nonexistent state in specified partition and volume number.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-67  
6.Command Specification  
READ ATTRIBUTE  
6.13.3. PARTITION LIST service action  
The READ ATTRIBUTE command with PARTITION LIST service action returns parameter data (Table 6-69)  
identifying the number of partitions supported in the specified volume number. The contents of PARTITION  
NUMBER and FIRST ATTRIBUTE IDENTIFER fields in the CDB will be ignored.  
Table 6-69: READ ATTRIBUTE with Volume LIST service action parameter list format.  
Bit  
Byte  
7
6
5
4
3
2
1
0
0
1
4
5
(MSB)  
AVAILABLE DATA (2)  
(LSB)  
FIRST PARTITION NUMBER (0)  
NUMBER OF PARTITIONS AVAILABLE  
The AVAIABLE DATA field will contain two.  
The FIRST PARTITION NUMBER field indicates the first partition available on the specified volume number.  
Partition numbering will start at zero.  
The NUMBER OF PARTITIONS AVAILABLE indicates the number of Partitions available on the specified  
VOLUME NUMBER.  
6.13.4. VOLUME LIST service action  
The READ ATTRIBUTE command with VOLUME LIST service action returns parameter data (Table 6-70)  
identifying the supported number of volumes. The contents of VOLUME NUMBER, PARTITION NUMBER, and  
FIRST ATTRIBUTE IDENTIFIER fields in the CDB will be ignored.  
Table 6-70: READ ATTRIBUTE with VOLUME LIST service action parameter list format.  
Bit  
Byte  
7
6
5
4
3
2
1
0
0
1
2
3
(MSB)  
AVAILABLE DATA (2h)  
(LSB)  
FIRST VOLUME NUMBER (0)  
NUMBER OF VOLUMES AVAILABLE  
The AVAILABLE DATA field will contain two.  
The FIRST VOLUME NUMBER field indicates the first volume available. Volume numbering will start at zero.  
The NUMBER OF VOLUMES AVAILABLE field indicates the number of volumes available.  
6-68  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
READ BLOCK LIMITS  
6.Command Specification  
6.14. READ BLOCK LIMITS 05h  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (05h)  
Reserved  
1
2
3
4
5
Reserved  
Reserved  
Reserved  
Control  
The READ BLOCK LIMITS command requests that the drive return its limits for Block Length. The READ BLOCK  
LIMITS data shown below will be sent during the DATA-IN phase of the command. The command does not reflect  
the currently selected block size, only the available limits. MODE SENSE returns the current block size. 2 bytes is  
the minimum and 8 Mbytes byte is the maximum block size which the unit can support.  
Table 6-71: READ BLOCK LIMITS Data  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Reserved  
Granularity(02h)  
1
2
3
4
5
(MSB)  
(MSB)  
Maximum Block Length Limit (80 00 00h)  
Minimum Block Length Limit (00 04h)  
(LSB)  
(LSB)  
GRANULARITY: This field indicates the block size granularity of the logical unit and the recording format. For this  
logical unit, the value is 2, indicating a granularity of 2**GRANULARITY.  
The maximum block length limit and minimum block length limit field values are shown in Table 6-71.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-69  
6.Command Specification  
READ BUFFER  
6.15. READ BUFFER 3Ch  
Bit  
7
6
5
4
3
2
1
0
Bite  
0
1
2
3
4
5
6
7
8
9
Operation Code (3Ch)  
Buffer ID  
Reserved  
Mode  
(MSB)  
(MSB)  
Buffer Offset  
(LSB)  
(LSB)  
Allocation Length  
Control  
The READ BUFFER command is used in conjunction with WRITE BUFFER as a diagnostic function for testing the  
data buffer and the SCSI bus integrity of the drive. A REWIND command will be sent to the drive after  
WRITE/READ BUFFER diagnostic testing to return to normal operation.  
The READ BUFFER command is executed only when there is no tape inserted in the drive or when the tape is  
positioned at BOT except in Echo buffer mode. Otherwise, the drive will return a CHECK CONDITION status with  
a Request Sense Key of ILLEGAL REQUEST.  
Note:  
Buffer Offset: The Buffer Offset field contains the byte offset within the specified buffer from which data will be  
transferred. The initiator will conform to the offset boundary requirements returned in the READ BUFFER  
descriptor. If the target is unable to accept the specified buffer offset, it will return a CHECK CONDITION status,  
will set the Sense Key to ILLEGAL REQUEST, and set the ASC to ILLEGAL FIELD IN CDB.  
Allocation Length: The Allocation Length specifies the maximum number of bytes that the initiator has allocated  
for returned data. An Allocation Length of ZERO indicates that no data will be transferred. Any other value  
indicates the maximum number of bytes that will be transferred. The drive terminates the DATA-IN phase when  
Allocation Length bytes of data have been transferred or when all available data has been transferred to the  
initiator, whichever is less. The Allocation Length must be greater than four (except in data only mode), else the  
drive will return a CHECK CONDITION status with an ILLEGAL REQUEST sense key set.  
Mode: The drive supports the following values within this field. If any other value is set, the drive will terminate the  
command with a CHECK CONDITION status and an ILLEGAL REQUEST sense key set.  
Table 6-72: READ BUFFER Mode values  
Mode  
0000b  
0010b  
0011b  
1010b  
1011b  
Description  
Combined Header and Data  
Data  
Descriptor  
Echo Buffer  
Echo Buffer Descriptor  
Combined Header and Data (0000b) - Combined Header and Data Mode-in this mode, the drive returns a  
four-byte header followed by the data bytes. The drive terminates the DATA-IN phase when Allocation Length  
bytes of header plus data have been transferred or when the header and all available data have been transferred  
to the initiator, whichever is less. The four-byte READ BUFFER header is followed by data bytes from the drive's  
data buffer.  
6-70  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
READ BUFFER  
6.Command Specification  
Table 6-73: READ BUFFER Header  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
Reserved  
Available Length  
(MSB)  
(LSB)  
Available Length: This field specifies the total number of data bytes that are available in the target's data buffer.  
This number is not reduced to reflect the Allocation Length nor is it reduced to reflect the actual number of bytes  
written using the WRITE BUFFER command. Following the READ BUFFER header, the target will transfer data  
from its data buffer.  
Data Mode (0010b) - in this mode, the DATA-IN phase contains buffer data only. The Buffer ID field identifies a  
specific buffer within the logical unit from which data will be transferred.  
Buffer ID: The supported values are:  
Table 6-74: Buffer ID values  
Buffer ID  
Description  
Offset  
- 0x01000000  
- 0x01000000  
0
Read Group Buffer  
Read Group Buffer  
Read Group Buffer  
Read Group Buffer  
Read Group Buffer  
0
0
80  
81  
82  
83  
0x01000000 - 0x02000000  
0x02000000 - 0x03000000  
0x03000000 - 0x03700000  
If an unsupported Buffer ID code is requested, the drive returns a CHECK CONDITION status with an ILLEGAL  
REQUEST sense key set.  
Descriptor Mode (0011b) - In this mode, a maximum of four bytes of READ BUFFER descriptor information is  
returned. The drive will return the descriptor information for the buffer specified by the BUFFER ID field (see the  
description of the buffer ID). If there is no buffer associated with the specified buffer ID, the drive will return all  
zeros in the READ BUFFER descriptor. The BUFFER OFFSET field is reserved in this mode. The allocation length  
will be set to four or greater. The drive will transfer the lesser of the allocation length or four bytes of READ  
BUFFER descriptor.  
Table 6-75: READ BUFFER Descriptor  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Reserved  
Buffer Capacity  
1
2
3
(MSB)  
(LSB)  
Buffer Capacity: This field returns the size of the selected buffer in bytes.  
Read Data from Echo Buffer (1011b) - Domain Validation is an important feature introduced in Ultra160 SCSI. It  
provides a mechanism for SCSI devices to perform at maximum possible operational data transfer speed.  
Domain validation performs a quick test to help ensure an initiator and target can actually transfer data at  
negotiated speeds. Using Echo Buffer option, the initiator can do a more extensive data transfer validation test.  
The initiator transmits the data using the WRITE BUFFER command with the echo buffer option and requests it  
back using the READ BUFFER command with echo buffer option.  
Note: Refer to INCITS TR-28-2002 regarding the Domain Validation.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-71  
6.Command Specification  
READ BUFFER  
Echo Buffer (1010b) - In this mode the drive transfer data to the application client from the echo buffer. The echo  
buffer will transfer the same data as when the WRITE BUFFER command with the mode field set to echo buffer  
was issued. The BUFFER ID and BUFFER OFFSET fields are ignored in this mode. The READ BUFFER  
command will return the same number of bytes of data as received in the prior echo buffer mode WRITE BUFFER  
command from the same initiator.  
The initiator may send a READ BUFFER command requesting the echo buffer descriptor prior to a WRITE  
BUFFER command. If an echo buffer mode WRITE BUFFER command is successful then the initiator may send  
multiple echo buffer mode READ BUFFER commands to read the echo buffer data multiple times.  
Echo buffer descriptor (1011b) - In this mode, a maximum of four bytes of READ BUFFER descriptor information  
is returned. The drive will return the descriptor information for the echo buffer. The BUFFER OFFSET field is  
reserved in this mode. The allocation length will be set to four or greater.  
Table 6-76: Echo Buffer descriptor  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Reserved  
EBOS (1)  
1
2
3
Reserved  
Reserved  
(MSB)  
BUFFER CAPACITY  
(LSB)  
The BUFFER CAPACITY field will return the size of the echo buffer in bytes aligned to a four-byte boundary. The  
maximum echo buffer size is 4096 bytes.  
6-72  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
READ POSITION  
6.Command Specification  
6.16. READ POSITION 34h  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (34h)  
1
2
3
4
5
6
7
8
9
Reserved  
TCLP  
LONG  
BT  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
Control  
The READ POSITION command reports the current position of the logical unit. No medium movement will occur  
as a result of the command.  
TCLP: The Total Current Logical Position (TCLP) bit of ONE indicates the drive will return data specifying the  
partition, file, and set number with the current logical position. The TCLP bit of ZERO indicates the drive will return  
data specifying the first and last block location with the number of bytes and blocks in buffer.  
LONG: The Long Format (LONG) bit of ONE indicates the drive will return 32 bytes of data. The LONG bit of  
ZERO indicates the drive will return 20 bytes of data.  
The LONG bit and the TCLP bit will be equal. If the LONG and TCLP bits are not equal, or if both the LONG and  
the Block Address Type (BT) bits are ONE, the command is rejected with a CHECK CONDITION status and an  
ILLEGAL REQUEST sense key set.  
BT: The Block Address type (BT) bit controls the content of the short format data. The BT bit of one requests the  
drive to return its current First Block Location will include data block only. The BT bit of ZERO requests the drive to  
return the First Block Location are a SCSI Logical Block Address (data blocks, Filemarks and Save Setmarks are  
counted.)  
Table 6-77: READ POSITION Data Format, short form  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
BOP  
EOP  
Reserved  
BPU  
Reserved  
1
2
Partition Number (0)  
Reserved  
3
Reserved  
4
7
8
(MSB)  
(MSB)  
First Block Location  
(LSB)  
(LSB)  
Last Block Location  
11  
12  
13  
15  
16  
19  
Reserved  
Number of Blocks in Buffer  
(MSB)  
(MSB)  
(LSB)  
(LSB)  
Number of Bytes in Buffer (00 00 00 00h)  
BOP: A Beginning Of Partition (BOP) bit of one indicates that the logical unit is at the beginning-of-partition in the  
current partition. A BOP bit of ZERO indicates that the current logical position is not at the beginning-of-partition.  
EOP: An End Of Partition (EOP) bit of one indicates that the logical unit is positioned between Early-Warning and  
end-of-partition in the current partition. An EOP bit of ZERO indicates that the current logical position is not  
between Early-Warning and end-of-partition. Note that this bit is mutually exclusive with the BOP bit.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-73  
6.Command Specification  
READ POSITION  
BPU: A Block Position Unknown (BPU) bit of one indicates that the First and Last Block Locations are not known  
or cannot be obtained. A BPU bit of ZERO indicates that the First contains valid position information.  
Partition Number: This field reports the current partition number for the current logical position. This drive does  
not support multi partition.  
First block location: This field indicates the Block Address associated with the current logical position. The value  
will indicate the Block Address of the next data block to be transferred between the initiator and the target if a  
READ or WRITE command is issued. See BT field for description of Logical Block Address. Note that the Logical  
Block Address at BOT/P is 0.  
Last block location: This field indicates the Block Address associated with the next block to be transferred from  
the buffer to the medium. The value will indicate the Block Address of the next data block to be transferred  
between the buffer and the medium. If the buffer does not contain a whole block of data or is empty, the value  
reported for the last block location will be equal to the value reported for the first block location.  
Number of Blocks in Buffer: This field indicates the number of data blocks in the buffer of the logical unit that  
have not been written to the medium.  
Number of Bytes in Buffer: This field is not supported and is always set to ZERO.  
Table 6-78: READ POSITION Data Format, long form  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
BOP  
EOP  
Reserved  
MPU  
BPU  
Reserved  
1
2
3
Reserved  
Reserved  
Reserved  
4
7
8
15  
16  
23  
24  
31  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
Partition Number(0)  
Block Number  
File Number  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
Set Number  
The BOP, EOP, and Partition Number are as defined in the READ POSITION data returned when the TCLP bit is  
set to 0.  
BPU: The Block Position Unknown (BPU) bit of ONE indicates the partition number or block number are not  
known or accurate reporting is not currently available. The BPU bit of ZERO indicates the partition number and  
block number fields contain valid position information.  
MPU: The Mark Position Unknown (MPU) bit of ONE indicates the file number and set number are not known or  
accurate reporting is not currently available. The MPU bit of ZERO indicates the File number and Set number  
fields contain valid position information.  
Block Number: Block Number reports the number of logical blocks between beginning-of-partition and current  
logical position. Setmarks and Filemarks count as one logical block each.  
File Number: File Number reports the number of Filemarks between beginning-of -partition and the current logical  
position.  
Set Number: Set Number reports the number of Setmarks between beginning –of-partition and the current logical  
position.  
6-74  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
RECEIVE DIAGNOSTIC RESULTS  
6.Command Specification  
6.17. RECEIVE DIAGNOSTIC RESULTS 1Ch  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (1Ch)  
Reserved  
Reserved  
Allocation Length  
1
2
3
4
5
(MSB)  
(LSB)  
Control  
The RECEIVE DIAGNOSTIC RESULTS command requests error analysis data to be sent to the initiator after  
completion of a SEND DIAGNOSTIC command.  
Allocation Length: This field specifies the number of bytes that the initiator has allocated for returned diagnostic  
data. An Allocation Length of ZERO means that no diagnostic data will be transferred. Any other value indicates  
the maximum number of bytes that will be transferred.  
The drive returns four bytes of header data as well as eight bytes of the diagnostic result. If the PF bit was not set,  
the drive returns only the eight bytes of the diagnostic result.  
The drive terminates the DATA-IN phase when Allocation Length bytes have been transferred or when all the  
available diagnostic data (four or eight bytes depending on the PF bit) have been transferred to the initiator,  
whichever, is less.  
If the drive returns a CHECK CONDITION status with the HARDWARE ERROR Sense Key and an ASC of  
DIAGNOSTIC FAILURE set on completion of a SEND DIAGNOSTIC, then the initiator will issue a RECEIVE  
DIAGNOSTIC RESULTS command to receive the eight bytes of data indicating the actual failure and the Most  
Suspect Unit (MSU).  
If the initiator issued a SEND DIAGNOSTIC with the PF bit set and a page Code of ZERO, the drive returns which  
pages it supports in the following format:  
Table 6-79: RECEIVE DIAGNOSTICS supported pages  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Page Code (00h)  
Reserved  
Page Length (00 02h)  
1
2
3
4
5
(MSB)  
(LSB)  
Supported Page Code (00h)  
Supported Page Code (81h)  
If the initiator issued a SEND DIAGNOSTIC with the PF bit set and a Page Code of 81h, the drive returns the  
following four bytes of page header, then five bytes of diagnostic results.  
Table 6-80: RECEIVE DIAGNOSTICS page header  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Page Code (81h)  
Reserved  
Page Length (00 05h)  
1
2
3
(MSB)  
(LSB)  
The structure of the diagnostic results data is described below:  
All error messages are of the same format. All fields within the error message may not be known or applicable.  
A diagnostic result of all ZEROs is returned if the diagnostic completed successfully without error.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-75  
6.Command Specification  
RECEIVE DIAGNOSTIC RESULTS  
Table 6-81: RECEIVE DIAGNOSTICS results data  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Reset  
Error  
Time  
Re-Sync  
(0)  
Reserved  
Error Set  
1
2
3
4
Error Code  
Result A  
Result B  
Test Number  
Reset error: This bit is set when an error occurs during power-on self-test.  
Time Re-Sync: This bit indicates that the time stamp saved with the error log has no relation to that of the  
previous entry. It is only set by the logging routine within the data buffer as an error is logged. This field is not  
supported.  
Error set: Various set of error codes exist. The definition of the error is dependent upon when set is taken from as  
follows:  
0 - Runtime errors  
1 - Drive mechanism diagnostic errors  
2 - Drive electronics diagnostic errors  
Error code: Error codes for each error set are defined in the Diagnostics clause.  
Result A and B: The content of these bytes depends on the test being run. See the Diagnostics clause.  
Test number: This is the test number to which the message applies (if a test fails within a sequence, the individual  
test number will be returned).  
6-76  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
RELEASE  
6.Command Specification  
6.18. RELEASE (6/10) 17h and 57h  
RELEASE( 6) CDB format  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (17h)  
1
2
3
4
5
Reserved  
Obsolete  
Reserved  
Reserved  
Reserved  
Control  
RELEASE (10) CDB format  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
Operation Code (57h)  
3rdPty Reserved  
Obsolete  
Reserved  
LongID  
Obsolete  
3
4
Third Party Device ID  
Reserved  
5
Reserved  
6
Reserved  
7-8  
9
Parameter List Length  
Control  
This RELEASE command releases the drive if it was reserved by the requesting initiator using a RESERVE (6/10)  
command and is still in the reserved state. See PERSISTENT RESERVE OUT/IN for an alternate reservation  
system. This command cannot release a reservation generated by the PERSISTENT RESERVE OUT command.  
Third party reservation management operations are only allowed using RESERVE (10) and RELEASE (10).  
Logical unit reservation management operations are allowed using RESERVE (6/10) and RELEASE (6/10).  
3rdPty: The Third-Party release option for the RELEASE command allows an initiator to release a logical unit that  
was previously reserved using the Third-Party reservation option.  
If the 3rdPty bit is ZERO, then the Third-Party release option is not requested. If the 3rdPty bit is one, then the  
drive is released, if the reservation was made using the Third-Party reservation option by the initiator that is  
requesting the release and for the same SCSI device as specified in the Third-Party Device ID field.  
If the 3rdPty bit is ONE, the Logical Unit releases the specified logical unit, but only if the initiator, 3rdPty bit, and  
Third Party Device ID fields (in CDB or in Parameter List) are identical when compared to the values used in the  
RESERVE (10) command that established the reservation.  
Long ID: If the Long ID bit is set to 1b and the Parameter List Length is 8, the parameter list contains the eight  
bytes of the device ID of the Third Party Device ID.  
If the 3rdPty bit is zero, the LONGID bit field is ignored.  
Third Party Device ID: If the Third Party Device ID value that is connected with the reservation release is equal to  
or smaller than 255 (FFh), the LongID field may be 0b and the Third Party Device ID value is sent in this field.  
The contents of the Third Party Device ID field in the CDB is ignored when LongID = 1b;  
Note: If the Third Party Device ID value is greater than 255 (FFh), LongID must be set to 1b.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-77  
6.Command Specification  
RELEASE  
Parameter List Length: The contents of this field specify the length, in bytes, of the parameter list that will be  
transferred from the initiator to the logical unit.  
If the 3rdPty bit is ZERO, the PARAMETER LIST LENGTH field is ignored.  
This field value must be 0000h when LongID is set to 0b. The field value must be eight when LongID is set to 1b.  
If LongID is set to 0b and Parameter List Length is not ZERO, the command is terminated with a CHECK  
CONDITION status and the Sense Key is set to ILLEGAL REQUEST. The Additional Sense Code is set to  
INVALID FIELD IN CDB.  
If LongID is set to 1b and Parameter List Length is not eight, the command is terminated with a CHECK  
CONDITION status and the Sense Key is set to ILLEGAL REQUEST. The Additional Sense Code is set to  
INVALID FIELD IN CDB.  
When the LongID bit is set to 1b, the parameter list has the format shown in Table 6-82.  
Table 6-82: RELEASE (10) LongID Only Parameter List — Data Format  
Bit  
7
6
5
4
3
2
1
0
Byte  
(MSB)  
0 - 7  
Third Party Device ID  
(LSB)  
6-78  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
REPORT DENSITY SUPPORT  
6.Command Specification  
6.19. REPORT DENSITY SUPPORT 44h  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (44h)  
Reserved  
1
2
3
4
5
6
7
8
9
MEDIA  
Reserved  
Reserved  
Reserved  
Reserved  
Reserved  
(MSB)  
Allocation Length  
(LSB)  
Control  
The REPORT DENSITY SUPPORT command provides information regarding the supported densities for the  
logical unit be sent to application client.  
MEDIA : The MEDIA bit of ZERO indicates that the drive will return density support data block for densities  
supported by the logical unit for any supported media. The data returned by the drive will be static if the MEDIA  
bit is ZERO. The MEDIA bit of ONE indicates that the drive will return density support data block for densities  
supported by the mounted medium. If the MEDIA bit is ONE and the logical unit is not in the ready state, a CHECK  
CONDITION status will be returned. The sense key will be set to NOT READY.  
The Allocation Length field specifies the maximum number of bytes that the drive may return.  
The REPORT DENSITY SUPPORT command returns the REPORT DENSITY SUPPORT header followed by one  
DENSITY SUPPORT data block. The Density support data blocks will be in numerical ascending order of the  
primary density code value for each block.  
Table 6-83: REPORT DENSITY SUPPORT header  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
(MSB)  
Available Density Support Length  
1
2
3
(LSB)  
Reserved (00h)  
Reserved (00h)  
Available Density Support Length: This field specified the number of bytes in the following data that is available  
to be transferred. The Available density support length does not include itself.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-79  
6.Command Specification  
REPORT DENSITY SUPPORT  
Table 6-84: REPORT DENSITY SUPPORT data block descriptor  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
4
5
7
8
9
10  
11  
12  
15  
16  
PRIMARY DENSITY CODE (32 h)  
SECONDARY DENSITY CODE (30 h)  
WRTOK (1) DUP (0) DEFLT (1)  
Reserved (00h)  
Reserved (00h)  
Reserved (00h)  
BITS PER MM  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
MEDIA WIDTH  
TRACKS  
CAPACITY  
(MSB)  
(MSB)  
(MSB)  
ASSIGNING ORGANIZATION (SONY)  
DENSITY NAME (AIT-3)  
23  
24  
31  
32  
DESCRIPTION (AdvlntelligentTape3)  
51  
52  
PRIMARY DENSITY CODE (B3h)  
53  
SECONDARY DENSITY CODE (30 h)  
54  
WRTOK (1) DUP (0) DEFLT (1)  
Reserved (00h)  
55  
56  
57  
59  
60  
61  
62  
63  
Reserved (00h)  
Reserved (00h)  
BITS PER MM  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
MEDIA WIDTH  
TRACKS  
64  
CAPACITY  
67  
68  
75  
76  
83  
84  
103  
104  
105  
106  
107  
108  
109  
111  
112  
113  
114  
115  
(MSB)  
(MSB)  
(MSB)  
ASSIGNING ORGANIZATION (SONY)  
DENSITY NAME (AIT-3 Ex)  
DESCRIPTION (AdvIntelligentTape3E)  
PROMARY DENSITY CODE (33h)  
SECONDARY DENSITY CODE (30h)  
WRTOK (1) DUP (0) DEFLT (1)  
Reserved (00h)  
Reserved (00h)  
Reserved (00h)  
BITS PER MM  
(MSB)  
(MSB)  
(MSB)  
(LSB)  
(LSB)  
(LSB)  
MEDIA WIDTH  
TRACKS  
6-80  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
REPORT DENSITY SUPPORT  
6.Command Specification  
116  
119  
120  
127  
128  
135  
136  
155  
156  
157  
158  
159  
160  
161  
162  
163  
164  
165  
166  
167  
170  
171  
178  
179  
186  
187  
206  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
CAPACITY  
(LSB)  
ASSIGNING ORGANIZATION (SONY)  
DENSITY NAME (AIT-4)  
(LSB)  
(LSB)  
(LSB)  
DESCRIPTION (AdvIntelligentTape4)  
PROMARY DENSITY CODE (34h)  
SECONDARY DENSITY CODE (30h)  
WRTOK (1) DUP (0) DEFLT (1)  
Reserved (00h)  
Reserved (00h)  
Reserved (00h)  
BITS PER MM  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
MEDIA WIDTH  
TRACKS  
CAPACITY  
(MSB)  
(MSB)  
(MSB)  
ASSIGNING ORGANIZATION (SONY)  
DENSITY NAME (AIT-5)  
(LSB)  
(LSB)  
(LSB)  
DESCRIPTION (AdvIntelligentTape5)  
Density support data blocks will be returned by ascending primary density code values.  
Primary Density Code: This field contains the value returned by a Mode Sense command for the density  
described in the remainder of the density support block. The drive will accept a Mode Select command  
containing this value, for appropriate media. The value of 00h will only be used for the default of the logical unit.  
WRTOK: The WRTOK bit of ZERO indicates that logical unit support for this density does not include writing to the  
media. The WRTOK bit of ONE indicates the logical unit is capable of writing this density to either the currently  
mounted medium (Media bit in CDB set to one) or for some media (Media bit in CDB set to Zero).  
DUP: The DUP bit of ZERO indicates this primary density code has exactly support data block. The DUP bit of  
ONE indicates this primary density code is specified in more than one density support block.  
DEFLT: The DEFLT bit of ZERO indicates this density is not the default density of the drive. The DEFLT of ONE  
indicates this density is the default density of the logical unit.  
Bits Per MM: This field indicates the number of bits per millimeter per track as recorded on the medium. The  
value in this field will be rounded up if the fractional value of the actual value is greater than or equal to 0.5. A  
value of 00h indicates that the number of bits per millimeter does not apply to this logical unit. Direct of this value  
between different suppliers (possible products) is discouraged since the definition of bits may vary.  
Media Width: This field indicates the width of the medium supported by this density. This field has units of tenths  
of millimeters. The value in this field is equal to 0.5. The Media Width field may vary for a given density depending  
on the mounted medium. A value of 00h indicates that the width of the medium does not apply to this logical unit.  
Tracks: This field indicates the number of data tracks supported on medium by this density.  
Capacity: If MEDIA bit of CDB is set to 0, this field will indicate the approximate capacity of the longest supported  
medium assuming recording in this density If the Media bit of CDB is set to 0, set to 0m this field will indicate the  
approximate capacity of the current medium assuming recording in this density. If the approximate capacity of the  
current medium cannot be determined for the mounted medium, the longest supported medium capacity will be  
used. The data and block size assumes that compression is disabled. The capacity also assumes that the media is  
in “good” condition, and that “normal” data and block size are used. This value is in units of megabytes (1000 X  
1000 bytes). The logical unit does not guarantee that this space is actually available in all cases.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-81  
6.Command Specification  
REPORT DEVICE IDENTIFIER  
6.20. REPORT DEVICE IDENTIFIER A3h  
Bit  
Byte  
7
6
5
4
3
2
1
0
0
1
Operation Code (A3h)  
Service Action (05h)  
Reserved  
2 - 5  
6 - 9  
10  
Reserved  
Allocation Length  
Reserved  
11  
Control  
The REPORT DEVICE IDENTIFIER command requests that the logical unit send device identification information  
to the initiator.  
Service Action: Must be 05h.  
For any value other than 05h, the command is terminated with a CHECK CONDITION status, the sense key is set  
to ILLEGAL REQUEST, and the ASC/ASCQ is set to INVALID FIELD IN CDB.  
Allocation Length: If the Allocation Length is not sufficient to allow all of the parameter data to be returned, the  
first portion of the data is returned (i.e., truncated). This is not considered an error.  
Note: The actual length of the parameter data is calculated using the Identifier Length field in the parameter data  
plus 4.  
Table 6-85: REPORT DEVICE IDENTIFIER - Data Format  
Bit  
7
6
5
4
3
2
1
0
Byte  
0 - 3  
4 - n  
Identifier Length (n – 3)  
Identifier  
Identifier Length: Specifies the length in bytes of the Identifier field. If the Allocation Length field in the CDB is too  
small to transfer the header and all of the identifiers, the length is not adjusted to reflect the truncation.  
The identifier length is initially equal to zero, and is changed only by a successful SET DEVICE IDENTIFIER  
command.  
Identifier: The value reported is the last value provided by a successful SET DEVICE IDENTIFIER command.  
The value of the identifier is changed only by a successful SET DEVICE IDENTIFIER command.  
The identifier value persists through resets, power cycles, media write operations, and media replacement.  
If Identifier Length = 00000000h, this field is not present or has zero length.  
6-82  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
REPORT LUNS  
6.Command Specification  
6.21. REPORT LUNS A0h  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
Operation Code (A0h)  
Reserved  
Reserved  
3
Reserved  
4
Reserved  
5
Reserved  
6
(MSB)  
7
8
Allocation Length  
9
(LSB)  
10  
11  
Reserved  
Control  
The REPORT LUNS command requests that the peripheral device logical unit numbers of known logical units in  
the target be sent to the application client. The REPORT LUNS command will return information about only those  
logical units to which commands may be sent.  
The REPORT LUNS command will not be affected by reservations or persistent reservations.  
The Allocation length will be at least 16 bytes. If the Allocation length is less than 16 bytes, the drive will return a  
CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST and the additional sense data will  
be set to INVALID FIELD IN CDB.  
If the Allocation length is not sufficient to contain the logical unit number values for all configured logical units, the  
drive will report as many logical unit number values as fit in the specified Allocation length. This will not be  
considered an error.  
The drive will report the logical unit numbers of configured drive using the format shown in Table 6-86.  
Table 6-86: LUN reporting parameter list format  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
(MSB)  
LUN List Length (00 00 00 08h)  
Reserved (0)  
3
4
7
(LSB)  
LUN List  
LUN  
8
(MSB)  
15  
(LSB)  
The LUN list length will contain the length in bytes of the LUN list that is available to be transferred. The LUN list  
length is the number of logical unit numbers reported multiplied by eight. If the allocation length in the CDB is too  
small to transfer information about all configured drive, the LUN list length value will not be adjusted to reflect the  
truncation.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-83  
6.Command Specification  
REQUEST SENSE  
6.22. REQUEST SENSE 03h  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (03h)  
Reserved  
Reserved  
Reserved  
Allocation Length (1Ch)  
Control  
1
2
3
4
5
The REQUEST SENSE command requests that the target transfer Sense Data to the initiator.  
The Sense Data will be valid for a CHECK CONDITION status returned on the previous command. The Sense  
Data will be preserved by the target until retrieved by the REQUEST SENSE command or until the receipt of any  
other command from the same initiator. The 28 bytes of Sense Data are cleared upon receipt of any subsequent  
command to the logical unit, including another REQUEST SENSE.  
If the drive receives an unsolicited REQUEST SENSE, then it returns Sense Data with the Filemark, EOM and the  
appropriate values in the ASC/ ASCQ fields. These fields are only set if the drive is currently logically positioned at  
BOM/P, EOM , EOD, or after a Filemark or after a Setmark. The initiator is required to know what the current  
direction of tape motion is and, therefore to know whether the logical position at a Filemark or Setmark is either on  
the BOT or EOT side of that mark.  
The positional information provided reflects the logical position of the drive. The drive returns information based on  
the data still in its buffer as well as the data on tape.  
The REQUEST SENSE command does not cause the drive to flush its buffered data to tape. Therefore, if the  
initiator requires the exact physical positioning of the media, it will precede the REQUEST SENSE with a WRITE  
FILEMARKS command with the number of Filemarks field = 0 and with the immediate bit set to ZERO. This  
command will force the drive to flush any currently buffered data to tape. A subsequent REQUEST SENSE will  
return the initiator the actual physical (and logical) position of the drive.  
Note: The drive will only maintain valid positional information on normal operating commands.  
Allocation Length: The Allocation Length specifies the maximum number of sense bytes to be returned. The  
drive terminates the transfer when the Allocation Length bytes have been transferred or when all available Sense  
Data has been transferred to the initiator, whichever is less.  
The returned sense information has the following format:  
6-84  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
REQUEST SENSE  
6.Command Specification  
Table 6-87: Error Codes 70h and 71h Sense Data Format  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Valid  
Error Code (70h or 71h)  
1
2
3
Segment Number  
Reserved  
Filemark  
(MSB)  
EOM  
ILI  
Sense Key  
Information  
6
7
8
(LSB)  
(LSB)  
Additional Sense Length (14h)  
Command-Specific Information  
(MSB)  
SKSV  
11  
12  
13  
14  
15  
17  
18  
19  
21  
22  
25  
26  
27  
Additional Sense Code (ASC)  
Additional Sense Code Qualifier (ASCQ)  
Field Replaceable Unit Code  
Sense-Key Specific  
Reserved  
Read/Write Data Error Counter  
(MSB)  
(MSB)  
(LSB)  
Remaining Tape  
(LSB)  
MEW  
Reserved  
CLN  
Reserved  
Reserved  
Valid: A valid bit of one indicates that the Information field holds residual data.  
Error Code: A value of 70h indicates a current error, i.e. the report is associated with the most recently received  
command. A value of 71h indicates a deferred error, i.e. the report is associated with a previous command and is  
not as a result of the current command. No other values will be returned.  
Segment Number: This field contains the number of the current segment descriptor if the REQUEST SENSE  
command is in response to a COPY command. Otherwise this byte is ZERO. This field is not supported and is  
always set to ZERO.  
Filemark: This bit indicates that the current command has read a Filemark or a Setmark. Reporting of Setmarks is  
optional and indicated by the RSmk bit in the MODE SENSE/SELECT Device Configuration Parameter page.  
EOM: An End-Of-Medium (EOM) bit of ONE indicates that an End-Of-Medium condition exists. This bit of ONE  
indicates that the drive is at or past the Logical Early-Warning Point if the direction was forward, or that the  
command could not be completed because Beginning-Of-Partition was encountered if the direction was reverse.  
The drive will also set the Sense Key to NO SENSE and the Additional Sense Code Qualifier to either 04h for  
Beginning of Partition or 02h for End of Partition.  
For WRITE type operations, the drive will return a CHECK CONDITION on any operation which occurs following  
detection of the Early-Warning End-of-Partition marker. The EOM and Additional Sense Code fields will be set.  
For READ type operations, the drive will not return a CHECK CONDITION until the drive encounters the physical  
End-of-Partition.  
Note that at PHYSICAL End-of-Partition, a WRITE FILEMARK command will cause the command to terminate  
with a CHECK CONDITION and a sense key of VOLUME OVERFLOW.  
ILI: This is the Incorrect Length Indicator bit, which indicates that the requested logical block length did not match  
the logical block length of the data on the medium. Only READ may cause this bit to be set.  
Information: This field contains the differences (residue) of the requested length minus the actual length in  
either bytes, blocks, Filemarks or Setmarks as determined by the command. (Negative values are indicated by  
two’s complement notation.) These bytes will be valid for all READ, WRITE and SPACE commands for which a  
CHECK CONDITION status has been generated. These bytes will be ZERO for MODE SELECT/SENSE,  
INQUIRY, READ BLOCK LIMITS and TEST UNIT READY commands.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-85  
6.Command Specification  
REQUEST SENSE  
Additional Sense Length: This field specifies the number of additional sense bytes that are to follow. If the  
Allocation Length of the CDB is too small to transfer all of the additional sense bytes, the Additional Sense Length  
is not adjusted to reflect the truncation.  
Command Specific Information: Command Specific Information field is unused, and will be ZERO.  
Additional Sense Code and Additional Sense Code Qualifier: These fields provide additional information about  
what caused the CHECK CONDITION status. They are used extensively by the drive. The information is  
presented in the Sense Key Description table on the following pages.  
Field Replaceable Unit Code: This field is used to define a device specific mechanism or part that has failed. A  
value of ZERO indicates that no specific mechanism or unit has been identified to have failed. This field is always  
set to ZERO.  
Sense-Key specific: This field will contain data that further information related to the CHECK CONDITION.  
If the Sense Key field is set to ILLEGAL REQUEST and the SKSV bit is set to one, the Sense-Key specific fields  
will be as shown below. The fields point to illegal parameters sent by the initiator.  
Table 6-88: Field Pointer Bytes  
Bit  
7
6
5
4
3
2
1
0
Byte  
15  
SKSV(1)  
(MSB)  
C/D  
Reserved Reserved  
BPV  
Bit Pointer  
16  
17  
Field Pointer  
(LSB)  
C/D: When this bit is set, it indicates that the illegal parameter is in the CDB. A C/D of ZERO indicates that the  
illegal parameter is in the Parameter List sent by the initiator during the DATA OUT phase.  
BPV: When the Bit Pointer Valid bit is set, indicates that the Bit Pointer field specifies which bit of the byte  
designated by the Field Pointer is in error. When a multiple-bit field is in error, the Bit Pointer field points to the  
most significant (left most) bit of the field.  
Field Pointer: This field indicates which byte of the CDB or of the Parameter List data was in error. Bytes are  
numbered from ZERO. When a multiple byte field is in error, the pointer points to the most significant byte of the  
field.  
If the SKSV bit is ZERO, then the Field Pointer Bytes take the Sony Unique Format as shown below:  
Table 6-89: Error Code and Status Bytes  
Bit  
7
6
5
4
3
2
1
0
Byte  
15  
SKSV(0)  
Reserved  
16  
17  
Runtime Error Code  
Status Byte  
Runtime Error Code: This field is part of the internal protocol and contains the Runtime (error set 0) Error code.  
These internal error codes are also listed below, showing to which Sense, ASC and ASCQ fields they are mapped.  
Status Byte: This field is not supported.  
Read/Write Data Error Counter: After a read operation, this field returns Total error collected fields of Read Error  
Counters Pages. After a write operation, this field returns Total error collected fields of Write Error Counters Pages.  
This field is valid only after a READ or a WRITE command. It is direct mapping of these log page data and is  
cleared/reset in the same way as those log page data.  
Remaining Tape: The capacity remaining of the tape in 1024 byte blocks is returned. This means the area from  
the current logical position to EOP.  
6-86  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
REQUEST SENSE  
6.Command Specification  
CLN: When this bit is set, it indicates drive request cleaning .  
MEW: When this bit is set, it indicates Media Warning.  
A description of the different Sense Keys (Byte 2), Additional Sense Codes (Byte 12), and the Additional Sense  
Code Qualifiers (Byte 13) supported by the SDX-1100V are listed in a table beginning on the following page.  
The following Table shows the REQUEST Sense Keys and the Additional Sense Key (Byte 12) and the Additional  
Sense Key Qualifier (Byte 13) supported by the SDX-1100V:  
Table 6-90: Sense Key Descriptions  
Sense  
Key  
Bytes  
Description  
12  
13  
00h  
NO SENSE: Indicates that there is no specific sense key information to be reported  
for the designated logical unit. This would be the case for a successful command or a  
command that received a CHECK CONDITION or a COMMAND TERMINATED  
status because one of the Filemark, EOM, or ILI bits is set to one. For Filemark or  
Setmark detected the drive will be positioned on the EOM side of the mark if the drive  
direction was forward and on the BOM side of the mark if the direction was reverse.  
00  
00 NO ADDITIONAL SENSE INFORMATION  
01 FILEMARK DETECTED  
00  
00  
00  
00  
00  
02 END-OF-PARTITION/MEDIUM DETECTED  
03 SETMARK DETECTED  
04 BEGINNING-OF-PARTITION/MEDIUM DETECTED  
05 END-OF-DATA DETECTED  
01h  
02h  
RECOVERED ERROR.  
5D 00  
FAILURE PREDICTION THRESHOLD EXCEEDED  
NOT READY. Indicates that the addressed logical unit cannot be accessed. Operator  
intervention may be required to correct this condition. Typically this indicates that  
there is no tape loaded. This status is also returned if the drive is currently rewinding  
following REWIND with Immediate bit set and another command is received (except  
for INQUIRY and READ BLOCK LIMITS which return GOOD status).  
04 00  
LOGICAL UNIT NOT READY - Media is present within the drive.  
This status is returned to any tape motion command following UNLOAD with  
Immediate bit set or if the Eject button has been pressed by the operator. Also can be  
caused by the command sequence, PREVENT ALLOW MEDIA REMOVAL with  
Prevent bit set followed by UNLOAD. Tape motion commands such as READ,  
WRITE or SPACE are not allowed but Diagnostics which do not access the tape are  
permitted.  
04  
30  
01 LOGICAL UNIT IS IN PROCESS OF BECOMING READY - This status is returned  
following a LOAD command with the IMMED bit set for any tape motion command  
before the tape is loaded. Also during the auto load following a tape insertion.  
03 CLEANING CARTRIDGE INSTALLED  
3A  
3A  
00 MEDIUM NOT PRESENT - This status is returned for all tape motion commands  
when there is no media within the tape.  
04 MEDIUM NOT PRESENT MAM ACCESSIBLE  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-87  
6.Command Specification  
REQUEST SENSE  
03h  
MEDIUM ERROR. Indicates that the current command or a previously acknowledged  
write-type operation terminated with a non-recovered error condition that was  
probably caused by a flaw in the medium, an error in the recorded data or the  
cleanliness of the head. This sense key may also be returned if the drive is unable to  
distinguish between a flaw in the medium and a specific hardware failure (sense key  
4h). This condition is also marked by the Valid bit being set, indicating that the  
Information field contains residue information.  
00  
02  
END-OF-PARTITION / MEDIUM DETECTED  
0C  
00 WRITE ERROR – The Read-After-Write Retry limit was exceeded during Write.  
Probably caused by a flaw in the media.  
11  
11  
00  
UNRECOVERED READ ERROR - C1, C2 & C3 Error Correction could not correct a  
Read Error. Probably caused by a flaw in the media.  
08  
INCOMPLETE BLOCK READ - The drive could not read the AITFormat Group  
containing the requested block. Could be caused by head clogging or media  
damage.  
14  
15  
03  
02  
END-OF-DATA NOT FOUND – While Reading an AIT format tape, the drive  
encountered blank (unformatted) media during a Read operation. This error could be  
caused by serious head clogging.  
POSITIONING ERROR DETECTED BY READ OF MEDIUM - Cannot find  
destination Group during Space operation.  
27  
30  
04  
00  
APPEND POSITION ERROR  
INCOMPATIBLE MEDIUM INSTALLED - Format violation.  
Possible that the Sub-Area cannot be read.  
CANNOT READ MEDIUM, INCOMPATIBLE FORMAT - Format violation.  
CLEANING FAILURE  
30  
30  
31  
02  
07  
00  
MEDIUM FORMAT CORRUPTED - AIT format Group GIT, BAT, or Sub-Codes do not  
match or are improper.  
3B  
50  
08  
00  
00  
REPOSITION ERROR - Position lost during Read, Write, Space, Locate, Seek or  
Select Partition operation.  
WRITE APPEND ERROR - Cannot find the last frame of the Group and therefore,  
cannot append.  
52  
70  
CARTRIDGE FAULT  
NN DECOMPRESSION EXCEPTION SHORT ALGORITHM ID OF NN - ALGORITHM ID  
<= 255  
83  
03  
MIC Checksum Error  
6-88  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
REQUEST SENSE  
6.Command Specification  
04h  
HARDWARE ERROR. Indicates that the drive detected a non-recoverable hardware  
failure not related to the tape (for example, controller failure, device failure, parity  
error, etc).While performing the command or during a self-test. If a previously  
acknowledged write-type operation was the cause, the valid bit is set. The error code  
in sense byte 16 will indicate the specific problem. Refer to the error code table in the  
diagnostics clause for more information.  
03  
3F  
00 PERIPHERAL DEVICE WRITE FAULT - Drive electronics did not report successful  
completion to a Write operation.  
01 MICROCODE HAS BEEN CHANGED – Illegal firmware code is reprogrammed.  
44  
00 INTERNAL TARGET FAILURE - Any unexpected internal error  
Conditions Indicating a Non-recoverable hardware failure. Refer to the field  
replaceable unit code field (sense byte 14) to determine which part of the drive is  
failing. Initiator will issue SEND DIAGNOSTICS with the self-test bit set to thoroughly  
test the drive. This sense information could also be returned after a send diagnostics  
command ends with a CHECK CONDITION status. initiator will issue RECEIVE  
DIAGNOSTICS RESULTS for more details. Possible causes: buffer  
overrun/under-run, format violation, mechanical status time-out, internal data parity  
error, byte count mismatch, incorrect micro processor operation, unexpected SCSI  
protocol chip interrupt.  
83  
06 MIC Read Error  
05h  
ILLEGAL REQUEST. Indicates that there was an illegal parameter in the CDB or in  
the additional parameters supplied as data for some commands. If the target detects  
an invalid parameter in the CDB, then it will terminate the command without altering  
the medium. If the target detects an invalid parameter in the additional parameters  
supplied as data, then the target may have already altered the medium. This sense  
key may also indicate that an invalid IDENTIFY message was received.  
1A  
00 PARAMETER LIST LENGTH ERROR - Indicates that the Parameter Length error in  
the CDB. Either the value does not fall on a Header, Page or Block descriptor  
boundary or the Parameter List Length is unexpectedly large.  
20  
24  
00 INVALID COMMAND OPERATION CODE - Invalid or Unsupported command.  
00 INVALID FIELD IN CDB – Bits are set in one or more fields are not supported or are  
Reserved. Refer to the Field Pointer (Bytes 15-17) to identify the illegal bit or field.  
26  
26  
00 INVALID FIELD IN PARAMETER LIST - Test Number,  
Configuration Number Header, or Field in the Parameter List was invalid or selected  
Diagnostic test is not initiator assessable.  
01 PARAMETER NOT SUPPORTED - Unsupported page requested. Refer to the Field  
Pointer (Bytes 15-17) to identify the illegal bit or field.  
26  
02 PARAMETER VALUE INVALID  
2C  
00 COMMAND SEQUENCE ERROR - Write Buffer command when tape is inserted and  
not at BOT.  
39  
00 SAVING PARAMETERS NOT SUPPORTED  
3D  
00 INVALID BITS IN IDENTIFY MESSAGE - Identify message was not 80h or C0h.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-89  
6.Command Specification  
REQUEST SENSE  
05h  
55  
83  
83  
83  
83  
83  
83  
83  
83  
83  
83  
83  
83  
83  
04 INSUFFICIENT REGISTRATION RESOURCES (attempt to register more than 1 key)  
02 No MIC Detected  
04 MIC out of Memory  
05 No Data Body Detected in the MIC  
0C MIC format type is undefined  
0D MIC capacity field indicates illegal value.  
80 Partition Count exceeded  
89 User Volume Note Size Mismatch  
8A User Partition Note Size Mismatch  
97 Current Partition is not the last partition  
98 Can not append the new partition, because remaining capacity too short.  
99 Can not delete partition  
9B Can not format tape because real tape capacity is exceeded  
9C Can not append new partitions because the MIC is out of memory  
06h  
UNIT ATTENTION. Indicates that the removable medium may have been changed or  
the target has been reset.  
28  
29  
29  
2A  
00 NOT READY TO READY TRANSITION, MEDIUM MAY HAVE CHANGED  
00 POWER ON, RESET, OR BUS DEVICE RESET OCCURRED  
80 Drive Failed Power-on test or Diagnostic - (SONY Unique)  
01 MODE PARAMETERS CHANGED - Issued to all other initiators after one initiator  
changes any Mode Parameter.  
2A  
2A  
03 RESERVATION PREEMPTED (after removing reservation by the CLEAR action)  
REGISTRATION PREEMPTED (after removing reservation by the PREEMPT or  
05  
PREEMPT ABORT action)  
3F  
83  
11 MEDIUM AUXILIARY MEMORY ACCESIBLE  
87 Broken MIC is loaded in AIT mode  
07h  
08h  
09h  
DATA PROTECT. Indicates that a WRITE type of operation was attempted on a write  
protected tape, write operation is not performed.  
27  
83  
00 WRITE PROTECTED – Cassette is Write Protected.  
0B BROKEN MIC – Cassette is Write Protected  
BLANK CHECK. Indicates the drive encountered blank medium or end-of-data  
indication while reading.  
00  
00  
00 NO ADDITIONAL SENSE INFORMATION - Blank Tape was encountered at BOT  
05 END-OF-DATA DETECTED - During READ or SPACE command.  
Vendor Specific  
83  
83  
83  
08 MIC is not formatted yet  
0B MIC is broken  
83 MIC exists but is not used  
6-90  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
REQUEST SENSE  
6.Command Specification  
0Bh  
ABORTED COMMAND  
43  
00 MESSAGE ERROR – Unexpected Message phase.  
45  
00 SELECT OR RESELECT FAILURE - SCSI Selection/ Re-selection error.  
47  
00 SCSI PARITY ERROR - SCSI Parity Error detected and drive proceeded to Status  
phase.  
48  
4A  
4B  
4E  
00 INITIATOR DETECTED ERROR MESSAGE RECEIVED.  
00 COMMAND PHASE ERROR  
00 DATA PHASE ERROR – Possible DMA error  
00 OVERLAPPED COMMANDS ATTEMPTED - Initiator issued a new command to the  
drive while a previous command was being executed.  
0Dh  
VOLUME OVERFLOW  
00  
02 END-OF-PARTITION/MEDIUM DETECTED - During Write type operation.  
MISCOMPARE. Not supported by the SDX-1100V  
RESERVED. Not used by SDX-1100V  
0Eh  
0Fh  
The REQUEST SENSE command returns the CHECK CONDITION status only to report fatal errors for the  
REQUEST SENSE command.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-91  
6.Command Specification  
REQUEST SENSE  
Table 6-91Runtime Error Code  
78h  
7Ch  
7Dh  
80h  
81h  
82h  
83h  
84h  
85h  
87h  
8Eh  
90h  
91h  
92h  
94h  
A0h  
A3h  
A4h  
A5h  
B0h  
B2h  
B3h  
B4h  
B8h  
BCh  
BDh  
BEh  
BFh  
C0h  
C1h  
C2h  
CBh  
DMA Parity Error FSC  
DRAM Parity Error Interface Buffer Controller  
DRAM Parity Error Tape Formatter Controller  
LOADING TIME-OUT  
FRONT LOADING TIME-OUT  
CAPSTAN TIME-OUT  
00h  
01h  
02h  
04h  
06h  
07h  
08h  
0Eh  
10h  
11h  
12h  
13h  
14h  
20h  
22h  
24h  
28h  
29h  
2Ah  
2Ch  
2Dh  
2Eh  
30h  
33h  
35h  
36h  
38h  
39h  
3Fh  
43h  
44h  
45h  
48h  
49h  
4Ch  
4Fh  
51h  
52h  
53h  
54h  
55h  
56h  
57h  
58h  
59h  
5Fh  
60h  
61h  
62h  
63h  
70h  
75h  
NO ERROR  
NO TAPE  
OFF-LINE WITH TAPE  
ILLEGAL COMMAND  
WRITE OPERATION INHIBIT  
WRITE PROTECTED  
PARTITION SIZE ERROR  
CLEANING EOM ENCOUNTERED  
INVALID TEST NUMBER  
DRUM TIME-OUT  
REEL TIME-OUT  
ILLEGAL ENCODER PATTERN  
TENSION REGULATOR NG  
SNAPPED TAPE  
INVALID PARAMETER  
INVALID TEST WITH CARTRIDGE  
TEST NOT ACCESSIBLE BY HOST  
TEST NOT ACCESSIBLE SELFTEST  
COMMAND ABORTED  
FEW S REEL FG  
FEW T REEL FG  
HIGH TEMPERATURE  
TAPE SLACK OCCURED  
DRUM SPEED OUT OF RANGE  
DRUM PHASE UNLOCKED  
DRUM NO FG  
BLANK AT BOT  
BULK ERASE DETECTED  
SYSTEM AREA READ CONDITION ERROR  
SYSTEM AREA READ TIMEOUT  
SYSTEM AREA READ OVER POSITION  
SYSTEM AREA WRITE CONDITION ERROR  
SYSTEM AREA APPEND TIMEOUT  
SYSTEM AREA APPEND OVER POSITION  
READ EOD ENCOUNTERED  
READ DETECT HEAD CLOG  
READ ECC UNCORRECTABLE  
READ APPROACH TIMEOUT  
READ OVER POSITION  
DRUM NO PG  
CAPSTAN SPEED OUT OF RANGE SHORT  
CAPSTAN SPEED OUT OF RANGE LONG  
CAPSTAN SPEED SERVO ERROR  
CAPSTAN CALIBRATION ERROR  
MC MISC ERROR  
MC BOM DETECTED ERROR  
MC EOM DETECTED ERROR  
MC INITIALIZATION ERROR  
MC COMMAND REJECT ERROR  
UNKNOWN BAT ENTRY  
Illegal Format  
READ FORMAT ERROR  
READ TIMEOUT  
SEARCH APPROACH POSITION ERROR  
SEARCH APPROACH TIMEOUT  
SEARCH ECC UNCORRECTABLE  
SEARCH OVER POSITION  
SEARCH FORMAT ERROR  
SEARCH NO USER DATA  
SEARCH TIMEOUT  
WRITE TOO MANY REWRITE  
WRITE CONDITION ERROR  
WRITE DETECT HEAD CLOG  
WRITE EOM ENCOUNTERED  
WRITE APPEND TIME OUT  
WRITE APPROACH TIME OUT  
WRITE APPEND OVER POSITION  
WRITE APPEND WSID NG  
WRITE APPEND ATF UNLOCK  
WRITE TIMEOUT  
FORMAT DISCONTINUITY  
TARGET RECORD NOT FOUND  
CCh UNEXPECTED EOR  
CEh  
E0h  
E4h  
E5h  
E6h  
E7h  
E9h  
F0h  
F1h  
F2h  
F3h  
F4h  
F5h  
F6h  
F7h  
F8h  
FAh  
FCh  
FDh  
DC ERROR  
DMAABORT ERROR  
FMK ENCOUNTERED  
SMK ENCOUNTERED  
BOP ENCOUNTERED  
EOD ENCOUNTERED AT BOT  
DMA HARDWARE ERROR  
MIC BROKEN ERROR  
MIC VERIFY ERROR  
MIC LOGICAL ERROR  
MIC CHECKSUM ERROR  
MIC NOT SUPPORTED  
CLEANING CONDITION ERROR  
RFD ERROR  
APPEND POSITION ERROR  
ILLEGAL TAPE  
UNDEFINED TAPE  
DT GCAL ERROR  
DT WHEADCAL ERROR  
DT RHEADCAL ERROR  
DT CLIP ERROR  
EEPROM NG  
DIAGNOSTIC FAILURE  
FIRMWARE VERIFICATION FAILURE  
FIRMWARE TAPE FAILURE  
6-92  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
RESERVE  
6.Command Specification  
6.23. RESERVE (6/10) 16h and 56h  
Table 6-92: RESERVE (6) CDB format  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (16h)  
1
2
3
4
5
Reserved  
Obsolete  
Obsolete  
Reserved  
Reserved  
Control  
Table 6-93: RESERVE (10) CDB format  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
Operation Code (56h)  
3rdPty Reserved  
Obsolete  
Reserved  
Long ID Reserved  
3
4
Third Party Device ID  
Reserved  
5
Reserved  
6
Reserved  
7-8  
9
Parameter List Length  
Control  
The RESERVE (6/10) command reserves the logical unit for exclusive use by the requesting initiator or one other  
specified SCSI device (third party). The RELEASE (6/10) command is used to release the logical unit if it was  
reserved by the requesting initiator using a RESERVE (6/10) command and is still in the reserved state.  
See PERSISTENT RESERVE OUT/IN for an alternate reservation system. The PERSISTENT RESERVE OUT  
command cannot be used to release a reservation generated by the RESERVE (6/10) commands.  
Third party reservation management operations are only allowed using RESERVE (10) and RELEASE (10).  
Logical unit reservation management operations are allowed using RESERVE (6/10) and RELEASE (6/10).  
The reservation remains in effect until one of the following conditions is met:  
- The initiator that made the reservation sends another RESERVE command.  
- The logical unit is released by a RELEASE (6/10) command from the same initiator.  
- The logical unit in a third party reservation is released by a RELEASE (10) command from the same initiator.  
- A TARGET RESET or LOGICAL UNIT RESET Task Management function is received from any initiator.  
The occurrence of the last two conditions is indicated by the logical unit returning a CHECK CONDITION status  
with a sense key of UNIT ATTENTION on the next command following the condition.  
It is not an error for an initiator to issue a new RESERVE (6/10) command to the logical unit when the logical unit  
is currently reserved by that same initiator. If the logical unit has previously been reserved by another initiator, then  
the logical unit terminates the command with RESERVATION CONFLICT status.  
If, after honoring the reservation, any other initiator then attempts to perform any command except INQUIRY,  
REQUEST SENSE, REPORT LUNS or RELEASE, then the command is rejected with a RESERVATION  
CONFLICT status. A RELEASE command issued by another initiator will be ignored by that reserved logical unit.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-93  
6.Command Specification  
RESERVE  
3rdPty: Third Party Release allows an initiator to reserve a logical unit for third party operations.  
If the value in this field is 0b, a logical unit reserve is requested.  
If the 3rdPty bit is set to 1b, the logical unit reserves the specified logical unit, but only if the initiator, 3rdPty bit,  
and Third Party Device ID fields (in CDB or in Parameter List). The logical unit retains this information to determine  
when a third party release function is valid.  
LongID: If the Long ID bit is set to 1b and 3rd Party is set to 1b and the Parameter List Length is 8, the parameter  
list contains the eight bytes of the device ID of the Third Party Device ID.  
If the 3rd Pty bit is ZERO, the LONGID bit field is ignored.  
Third-Party Device ID: If the Third-Party bit is ZERO, then the Third-Party Reservation option is not requested.  
If the 3rdPty bit is one, a RESERVE reserves the drive for the SCSI device specified in the Third-Party Device ID  
field (LongID = 0b) or the parameter data (LongID = 1b). The logical unit preserves the reservation until any one of  
the conditions mentioned above occurs.  
The logical unit ignores any attempt made by any other initiator to release the reservation and returns GOOD  
status.  
If the Third Party Device ID value is equal to or smaller than 255 (FFh), the LongID field may be 0b and the Third  
Party Device ID value is sent in this field.  
The contents of the Third Party Device ID field in the CDB is ignored when the LongID field is set to 1b. See  
Parameter List Length.  
Note: If the Third Party Device ID value is greater than 255 (FFh), LongID must be set to 1b.  
Parameter List Length: The contents of this field specify the length, in bytes, of the parameter list that is  
transferred from the initiator to the logical unit.  
If the 3rdPty bit is set to ZERO or LongID is set to ZERO, the PARAMETER LIST LENGTH field is ignored.  
The field value is ignored when the LongID field is set to 0b.  
The field value must be at least 8 when the LongID field is set to 1b.  
If the LongID is set to 0b and Parameter List Length is not ZERO, the command is terminated with a CHECK  
CONDITION status and the Sense Key is set to ILLEGAL REQUEST. The ASC is set to INVALID FIELD IN CDB.  
If the LongID field is set to 1b and Parameter List Length is set to less than eight (8), the command is terminated  
with a CHECK CONDITION status and the Sense Key is set to ILLEGAL REQUEST. The ASC is set to INVALID  
FIELD IN CDB.  
An initiator that holds a current reservation may modify that reservation e.g., switch third-parties by issuing another  
RESERVE command to the drive.  
When the LongID bit is set to 1b, the parameter list has the format shown in Table 6-94.  
Table 6-94: RESERVE (10) LongID Only Parameter List — Data Format  
Bit  
7
6
5
4
3
2
1
0
Byte  
(MSB)  
0 - 7  
Third Party Device ID  
(LSB)  
6-94  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
REWIND  
6.Command Specification  
6.24. REWIND 01h  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (01h)  
Reserved  
1
2
3
4
5
Immed  
Reserved  
Reserved  
Reserved  
Control  
The REWIND command requests the drive to position the media at the beginning of the currently active partition.  
Before rewinding, the drive writes any buffered data to tape and appends an EOD.  
Immed: When this bit is set, the drive writes any remaining buffered data followed by an EOD to tape. It then  
returns status to the initiator before beginning the actual rewind operation. If the Immediate bit is not set, status will  
be returned after the rewind has completed.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-95  
6.Command Specification  
SEND DIAGNOSTIC  
6.25. SEND DIAGNOSTIC 1Dh  
Bit  
Byte  
7
6
5
4
3
2
1
0
0
1
2
3
4
5
Operation Code (1Dh)  
PF Reserved Self Test DevOfl(0)  
Reserved  
Reserved  
UnitOfl  
(LSB)  
(MSB)  
Parameter List Length  
Control  
The SEND DIAGNOSTIC command requests the drive to perform diagnostic tests on itself.  
PF: The drive expects the Page Format bit to be set to indicate that the parameters transferred during the DATA  
OUT phase will include four bytes of header information as well as the diagnostic test bytes.  
If this bit is not set, the parameter bytes will only describe the diagnostic test. Note that if the Self Test bit is set,  
this bit must be ZERO else the drive will return a CHECK CONDITION with the ILLEGAL REQUEST sense key  
set.  
Self Test: When this bit is set, the drive executes its POWER-ON SEQUENCE. The Parameter List Length must  
be ZERO when this bit is set other-wise the drive will return a CHECK CONDITION status with an ILLEGAL  
REQUEST sense key set. After Self Test, a LOAD command is required to bring the drive online.  
DevOfl: Device Off-line is not supported and will be set to ZERO, otherwise the driver will return a CHECK  
CONDITION status with an ILLEGAL REQUEST SENSE key set.  
UnitOfl: This bit must be set for proper operation of any diagnostic test except Self Test. If this bit is not set,  
except for self-test, the drive will return a CHECK CONDITION status with an ILLEGAL REQUEST sense key set.  
Parameter List Length: This field provides the count of the number of Parameter List bytes which will be  
transferred in the DATA-OUT phase. These bytes describe the test that is to be run. This field must be set to  
ZERO if the Self-Test bit is set.  
If the PF bit is ZERO, the Parameter List describes the diagnostic test to be executed. The diagnostic tests are five  
bytes in length. If the Parameter List Length is not set to five or ZERO if the Self-Test bit is set, the drive returns a  
CHECK CONDITION status with an ILLEGAL REQUEST sense key set.  
If the PF bit is set, the Parameter List includes a four byte header as of the form:  
Table 6-95: Diagnostic Page Format  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Page Code  
Reserved  
Page Length (n-3)  
1
2
3
(MSB)  
(LSB)  
Page Code: The drive supports two Page Codes:  
00h - Return Supported pages  
81h - Drive Diagnostic page  
For Page Code 00h, the Page Length must be ZERO and the Parameter List Length must be set to four otherwise  
the drive returns a CHECK CONDITION status with an ILLEGAL REQUEST sense key set. This Page Code  
requests that the drive return a list of the supported pages in the DATA -IN phase of RECEIVE DIAGNOSTIC.  
6-96  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
SEND DIAGNOSTIC  
6.Command Specification  
For Page Code 81h, the Page Length must be five and the Parameter List Length must be set to nine otherwise  
the drive returns a CHECK CONDITION status with an ILLEGAL REQUEST sense key set. This page Code  
instructs the drive to execute the five bytes of diagnostic test that follow the four bytes of header. The five  
bytes of diagnostic test information will be of the form:  
Table 6-96: Diagnostic Test information  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Diagnostic Test Number  
Loop Count Identifier  
Parameter A  
1
2
3
4
Break  
Parameter B  
Parameter C  
Diagnostic Test Number: Number identifying which test to execute  
Break: This field allows the initiator to terminate the diagnostic test when an error occurs.  
0 = stop on first error  
1 = do not stop on error  
Loop Count Identifier: The number of times that the test will be repeated before status is returned.  
0 = run once  
1 = run once  
2 = run 10 times  
3 = run 100 times  
4 = run 1000 times  
Parameters A, B, C: Any additional parameters required to fully define the diagnostic test.  
If the test completes successfully, the drive returns GOOD status. If the test failed, a CHECK CONDITION status is  
returned with a HARDWARE ERROR Sense Key and an Additional Sense Code of DIAGNOSTIC FAILURE set.  
The initiator will then send a REQUEST DIAGNOSTIC command which will return information as to which test  
failed and the nature of the failure. If the test requested is not defined, not available to the requested processor,  
or not executable in the current configuration, this information will be reported in the data returned by the  
REQUEST DIAGNOSTIC command.  
Refer to clause 7, Drive Diagnostics for more detailed information about the supported diagnostic tests and test  
operations.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-97  
6.Command Specification  
SET DEVICE IDENTIFIER A4h  
6.26. SET DEVICE IDENTIFIER A4h  
Table 6-97: SET DEVICE IDENTIFIER command  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (A4h)  
Service Action(06h)  
1
Reserved  
2 – 5  
6 – 9  
10  
Reserved  
Parameter List Length  
Reserved  
11  
Control  
The SET DEVICE IDENTIFIER command (Table 6-97) requests that the device identifier information in the logical  
unit be set to the value received in the SET DEVICE IDENTIFIER command parameter list.  
The Identifier set by an initiator may be from 0 (reset) to 64 bytes in increments of 1 byte.  
The identifier is preserved over power cycles and reset events (see the REPORT DEVICE IDENTIFIER  
command).  
Service Action: Service Action must be 06h.  
If the Service Action is not 06h, the command is terminated with a CHECK CONDITION status, the sense key is  
set to ILLEGAL REQUEST, and the ASC/ASCQ is set to INVALID FIELD IN CDB.  
Parameter List Length: Parameter List Length specifies the length in bytes of the Identifier that is transferred  
from the application client to the logical unit. The maximum value for this field is 64 bytes; the minimum is 0.  
If the parameter list length exceeds 64, the command is terminated with a CHECK CONDITION status, the sense  
key is set to ILLEGAL REQUEST, and the ASC/ASCQ is set to INVALID FIELD IN CDB.  
A parameter list length of ZERO indicates that no data is to be transferred, the identifier in the logical unit is to be  
set to zero length, and subsequent REPORT DEVICE IDENTIFIER commands return an Identifier length of zero.  
The SET DEVICE IDENTIFIER parameter list contains the identifier to be set by the logical unit (see Table 6-98).  
Table 6-98: SET DEVICE IDENTIFIER Parameter List — Data Format  
Bit  
7
6
5
4
3
2
1
0
Byte  
0 - <= 63  
Identifier  
Idenfifer:The Identifier field is an initiator selected value, to be returned in subsequent valid REPORT DEVICE  
IDENTIFIER commands or until reset or until replaced by another valid SET DEVICE IDENTIFIER command.  
On successful completion of a SET DEVICE IDENTIFIER command a unit attention will be generated for all  
initiators except the initiator that issued the SET DEVICE IDENTIFIER command with service action 06h. When  
reporting the unit attention condition the additional sense code will be set to DEVICE IDENTIFIER CHANGED.  
6-98  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
SPACE  
6.Command Specification  
6.27. SPACE 11h  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (11h)  
1
2
3
4
5
Reserved  
Code  
(MSB)  
Count  
(LSB)  
Control  
The SPACE command provides a variety of positioning functions that are determined by the Code and Count fields  
in the CDB. Both forward (toward EOM/P) and reverse (toward BOM/P) positioning are provided.  
Code: The supported values are:  
Table 6-99: SPACE codes  
Code  
000b  
001b  
011b  
100b  
Description  
Blocks  
Filemarks  
EOD  
Setmarks  
Note: The drive will reject a SPACE Setmark command if it has not configured through MODE SELECT to report  
Setmarks. The drive will return a CHECK CONDITION status with the Sense Data set to ILLEGAL REQUEST. In  
this command description the word “mark” is used to mean Filemark or Setmark. Only where their responses  
differ Filemark and Setmark will be referred explicitly.  
Count: When spacing over blocks or marks, the Count field is interpreted as follows:  
A positive value N causes forward movement over N blocks or marks. The tape is logically positioned after the Nth  
block (or mark) on the EOM/P side.  
A ZERO value causes no change in the logical position.  
A negative value -N (2’s complement notation) causes reverse movement over N blocks or marks. The tape is  
logically positioned on the BOM /P side of the Nth block (or mark).  
When spacing to EOD, the Count field is ignored. Forward movement occurs until the drive encounters EOD.  
When executing a SPACE, the drive implements the following hierarchy: Blocks (lowest), Filemarks, Setmarks,  
EOD, BOM/P or EOM/P (highest)  
Therefore, SPACE N blocks command will terminate with GOOD status after the Nth block, or with a CHECK  
CONDITION status on any occurrence of Filemark, Setmark, EOD, BOM/P or EOM/P. SPACE N Filemarks will halt  
on the Nth Filemark or on any occurrence of Setmark, EOD, BOM/P or EOM/P, and so on. Within the Sense Data,  
the fields will be set as described on the following table.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-99  
6.Command Specification  
SPACE  
Table 6-100: SPACE CHECK CONDITION results  
Sense Data  
Spacing  
Event  
Detected  
Valid  
Mark  
EOM  
Sense Key  
ASC/ASCQ  
Filemark Detected  
Setmark Detected  
Note  
Blocks  
Filemark  
1
1
1
1
1
1
1
1
1
1
1
1
0
0
1
1
0
0
0
1
0
0
0
0
0
0
0
0
0
No Sense  
a,b  
Setmark  
EOD  
0
No Sense  
a,b,d  
b
0
Blank Check  
No Sense  
BOT  
1
BOM/P Detected  
EOM/P Detected  
Setmark Detected  
b,e  
b,f  
Phy EOT  
1
Medium Error  
No Sense  
Filemarks Setmark  
EOD  
0
a,b,d  
b
0
Blank Check  
No Sense  
BOT  
1
BOM/P Detected  
EOM/P Detected  
b,e  
b,f  
Phy.EOT  
1
Medium Error  
Blank Check  
No Sense  
Setmarks EOD  
BOT  
0
b
1
BOM/P Detected  
EOM/P Detected  
BOM/P Detected  
EOM/P Detected  
b,e  
b,f  
Phy.EOT  
1
Medium Error  
No Sense  
EOD  
BOT  
1
c,e  
c,f  
Phy.EOT  
1
Medium Error  
Note a: The logical position is located on the EOM side of the mark if the movement was in the forward direction  
and on the BOM side of the mark if movement was in the reverse direction.  
Note b: The Information field in the Sense Data is set to the difference (residue) between the requested count and  
the actual number of blocks, Filemarks, Setmarks, or spaced over.  
Note c: The Information field in the Sense Data will contain no residue count and therefore the Valid bit is not set.  
Note d: If it has been configured through MODE SELECT to Report Setmarks, the drive will only report that a  
Setmark has been detected while spacing over blocks or Filemarks. Otherwise, the drive will continue the space  
operation and the presence of the Setmark will be transparent to the nitiator.  
Note e: The tape is physically positioned at BOM/P.  
Note f: EOM is only reported when the physical EOM/P is encountered. The tape is physically positioned at  
EOM/P.  
6-100  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
SPACE  
6.Command Specification  
6.27.1. CHECK CONDITION  
NO SENSE: If a Filemark is encountered while spacing over blocks, the Filemark and Valid bits in extended sense  
are set to one. The Information field in the Sense Data is set to the difference (residue) between the requested  
count and the actual number of blocks spaced over (not including the mark).  
If a Save Setmark is encountered while spacing over blocks or Filemarks, nothing is reported unless the logical  
unit has been configured through MODE SELECT to Report Save Setmarks.  
If the Report Save-Setmarks configuration is enabled and a Save-Setmark is encountered while spacing over  
blocks or Filemarks, the Valid bit and the Additional Sense Code in the Sense Data are set to indicate that a  
Save-Setmark has been encountered. The Information field in the Sense Data is set to the difference (residue) in  
the requested count and the actual number of blocks or Save-Setmarks spaced over (not including the detected  
Save-Setmark).  
If the EOD is detected while spacing over blocks or marks, the Valid bit and the Additional Sense Code in the  
Sense Data are set to indicate that an EOD has been encountered. The Information field in the Sense Data is  
set to the difference (residue) in the requested count and the actual number of blocks or marks spaced over.  
If the BOT is detected while spacing over blocks or marks in the reverse direction, the EOM bit is set in extended  
sense. The Valid bit is set to one and the Information field to the difference (residue) between the requested count  
and the actual number of blocks or Filemarks spaced over.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-101  
6.Command Specification  
TEST UNIT READY 00h  
6.28. TEST UNIT READY 00h  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (00h)  
Reserved  
1
2
3
4
5
Reserved  
Reserved  
Reserved  
Control  
The TEST UNIT READY command provides a means to check if the drive is ready. This is not a request for a  
self-test. If the drive is able to accept an appropriate medium-access command without returning a CHECK  
CONDITION, this command will return a GOOD status. Otherwise, a CHECK CONDITION will be reported and the  
sense key will be NOT READY.  
Table 6-101: TEST UNIT READY results  
Drive Status  
Sense Key  
ASC/ASCQ Description  
Tape Loaded  
00 No Sense  
00 NO ADDITIONAL SENSE INFORMATION  
No Tape Present  
02 Not Ready 3A 00 MEDIUM NOT PRESENT  
Tape Loading  
02 Not Ready 04 01 LOGICAL UNIT IS BECOMING READY  
02 Not Ready 04 00 LOGICAL UNIT NOT READY  
02 Not Ready 04 00 LOGICAL UNIT NOT READY  
Tape Unloading  
Tape Unloaded (but retained in drive)  
6-102  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
WRITE 0Ah  
6.Command Specification  
6.29. WRITE 0Ah  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (0Ah)  
Reserved  
1
2
3
4
5
Fixed  
(LSB)  
(MSB)  
Transfer Length  
Control  
The WRITE command requests that the drive write the data that is transferred from the initiator to the logical  
position.  
Fixed: The Fixed bit specifies whether fixfed-length or variable-length blocks are to be transferred.  
If the Fixed bit is set to ZERO, Variable Block mode is selected. A single block is transferred from the initiator and  
is written to the current logical tape position. If the WRITE command complete successfully, the tape is logically  
positioned after this block(EOM/P side).  
If the Fixed Bit is set to one, the Transfer Length field specifies the number of blocks to be transferred to the  
current logical position. This is valid only if the drive is currently operating in Fixed Block mode, in other words,  
when it has been instructed to use fixed-length blocks with MODE SELECT. The current block length is the block  
length defined in the MODE SELECT command. Upon termination, the tape is logically positioned after these  
blocks (EOM/P side).  
If the EARLY-WARNING is detected while writing, the drive will finish writing any buffered data. The command will  
terminate with a CHECK CONDITION status., The EOM bit is set and the Sense Key field in the Sense Data is set  
to NO SENSE and the ASC and ASCQ fields are set to EOM/P detected. The drive will attempt to complete any  
subsequent writes, returning a CHECK CONDITION status in each case.  
If the drive encounters the physical EOM when attempting a WRITE, a CHECK CONDITION status is returned.  
The EOM and Valid bits are set and the Sense Key field in the Sense Data is set to VOLUME OVERFLOW. The  
Information field contains the residue count and the ASC and ASCQ fields are set to EOM/P Detected. The tape is  
physically positioned at EOM/P.  
If the Transfer Length is ZERO, no data will be transferred and the current position on the logical unit will not be  
changed.  
The drive flushes its write buffer to tape and appends an EOD under the following conditions:  
1. Receipt of the following non-write commands:  
READ  
SPACE  
ERASE  
READ BUFFER  
WRITE BUFFER  
REWIND  
LOAD/UNLOAD  
MODE SELECT (Media Operation)  
LOCATE  
The buffer can be maintained through the following media commands, assuming that no other flush condition has  
been met, for example, write hold-off time-out.  
WRITE  
WRITE FILEMARKS (except count field of 0)  
2. The write hold-off time limit is exceeded.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-103  
6.Command Specification  
WRITE ATTRIBUTE  
6.30. WRITE ATTRIBUTE 8Dh  
The WRITE ATTRIBUTE command (Table 6-102) allows an application client to write attributes to medium auxiliary  
memory. Application clients will issue the READ ATTRIBUTE command prior to using this command to discover  
device server support for medium auxiliary memory.  
Table 6-102: WRITE ATTRIBUTE command  
Bit  
Byte  
7
6
5
4
3
2
1
0
0
1
OPERATION CODE ( 8Dh)  
Reserved  
2
(MSB)  
Reserved for SMC –2 devices (0)  
3
(LSB)  
4
5
VOLUME NUMBER (0)  
Reserved  
6
7
PARTITION NUMBER (0)  
Reserved  
8
9
Reserved  
10  
11  
12  
13  
14  
15  
(MSB)  
PARAMETER LIST LENGTH  
(LSB)  
Reserved  
CONTROL  
VOLUME NUMBER: The VOLUME NUMBER specifies a volume within the Medium Auxiliary Memory. The  
number of volumes of the MAM will equal that of the attached multi-volume medium. The mult-volume is not  
supported by the drive. If this field is set to non-ZERO, a check condition status is returned with a ILLEGAL  
REQUEST sense key.  
PARTITION NUMBER: The PARTITION NUMBER specifies a partition within a volume. The number of partitions  
of the MAM will equal that of the attached multi-partition medium. The multi partition is not supported by the  
drive. If this field is set to non-ZERO, a check condition status is returned with a ILLEGAL REQUEST sense key.  
If the combination of VOLUME NUMBER and PARTITION NUMBER is not valid, the command will be terminated  
with a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST, and the additional sense  
data will be set to INVALID FIELD IN CDB.  
PARAMETER LIST LENGTH: The PARAMETER LIST LENGTH field specifies the length in bytes of the  
parameter list contained in the DATA-OUT Buffer. A parameter list length of zero indicates that no parameter data  
is present; this will not be considered an error. If the parameter list length results in the truncation of an attribute,  
the WRITE ATTRIBUTE command will be terminated with a CHECK CONDITION status. The sense key will be set  
to ILLEGAL REQUEST and the ASC will be set to PARAMETER LIST LENGTH ERROR.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-104  
WRITE ATTRIBUTE  
6.Command Specification  
The parameter list will have the format shown in Table 6-103. Attributes will be sent in ascending numerical order.  
If the attributes are not in order, no attributes will be changed and the WRITE ATTRIBUTE command will be  
terminated with a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST and the ASC will  
be set to INVALID FIELD IN PARAMETER LIST.  
Table 6-103: WRITE ATTRIBUTE parameter list format  
Bit  
Byte  
7
6
5
4
3
2
1
0
0
3
(MSB)  
PARAMETER DATALENGTH (n-3)  
(LSB)  
4
.
ATTRIBUTE 0  
.
.
.
ATTRIBUTE x  
n
The PARAMETER DATA LENGTH field will contain the number of bytes of attribute data and will be ignored by the  
logical unit.  
The format of the attribute is described later.  
If there is not enough space to write the attributes to the medium auxiliary memory, no attributes will be changed  
and the WRITE ATTRIBUTE command will be terminated with a CHECK CONDITION status. The sense key will  
be set to ILLEGAL REQUEST and the ASC will be set to AUXILIARY MEMORY OUT OF SPACE.  
If the medium auxiliary memory is not accessible because there is no medium present, no attributes will be  
changed and the WRITE ATTRIBUTE command will be terminated with a CHECK CONDITION status. The sense  
key will be set to NOT READY and the ASC will be set to AUXILIARY MEMORY NOT ACCESSIBLE.  
If the Medium Auxiliary Memory has failed (e.g. bad checksum) the WRITE ATTRIBUTE command will be  
terminated with a CHECK CONDITION status. The sense key will be set to MEDIUM ERROR and the ASC will be  
set to AUXILIARY MEMORY WRITE ERROR.  
If the WRITE ATTRIBUTE command parameter data contains an attribute with an ATTRIBUTE LENGTH field set  
to ZERO, then one of the following actions will occur:  
If the attribute state is unsupported or read only, no attributes will be changed and the WRITE ATTRIBUTE  
command will be terminated with a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST  
and the ASC will be set to INVALID FIELD IN PARAMETERLIST;  
If the attribute state is read/write, the attribute will be changed to the nonexistent state. The attribute will not be  
returned in response to a READ ATTRIBUTE command and not reported by the read ATTRIBUTE command with  
ATTRIBUTE LIST service action; or  
If the attribute state is nonexistent, the attribute in the WRITE ATTRIBUTE command parameter list will be  
ignored; this will not be considered an error.  
If any of the following conditions occur, no attributes will be changed, the WRITE ATTRIBUTE command will be  
terminated with a CHECK CONDITION status, the sense key will be set to ILLEGAL REQUEST, and the ASC will  
be set to INVALID FIELD IN PARAMETER LIST.  
If the parameter data attempts to change an attribute in the read only state.  
If the parameter data contains an attribute with INCORRECT ATTRIBUTE LENGTH field contents; or  
If the parameter data contain an attribute with unsupported ATTRIBUTE VALUE field contents.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-105  
6.Command Specification  
WRITE BUFFER  
6.31. WRITE BUFFER 3Bh  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (3Bh)  
1
2
3
5
6
8
9
Reserved  
Mode  
Buffer ID  
Buffer Offset  
(MSB)  
(MSB)  
(LSB)  
(LSB)  
Parameter List Length  
Control  
The WRITE BUFFER command is used in conjunction with the READ BUFFER command as a diagnostic  
function.  
The WRITE BUFFER command except Echo buffer is executed only when there is no tape inserted in the drive or  
when the tape is positioned at BOT. Otherwise, the drive will return a CHECK CONDITION status with an ILLEGAL  
Request Sense Key.  
Note: The drive will write any buffered data to tape prior to executing the WRITE BUFFER command except Echo  
buffer. Any data that is then transferred by the WRITE BUFFER is not written to tape.  
Mode: The drive supports the following values within the Mode field. If any other value is set, the drive will  
terminate the command with a CHECK CONDITION status with an ILLEGAL REQUEST sense key.  
Table 6-104: WRITE BUFFER Mode Field  
Mode  
0000b  
0010b  
1010b  
Description  
Combined header and data  
Data  
Echo Buffer  
Combined Header and Data Mode (0000b) - In this mode, the test data to be transferred must be preceded by a  
four-byte header. The four-byte header consists of all reserved bytes. The Parameters List Length specifies the  
maximum number of bytes that will be transferred during the DATA-OUT phase. This number includes four bytes  
of header, so the data length to be stored in the buffer is transfer length minus four. The initiator will ensure that  
the transfer length is not greater than four plus the available length that is returned in the header of the READ  
BUFFER command.  
Data Mode (0010b)- In this mode, the DATA-OUT phase contains only buffer test data.  
Echo Buffer (1010b) - In this mode the data will be stored in an echo buffer. Data will be sent aligned on four-byte  
boundaries. The BUFFER ID and BUFFER OFFSET fields are ignored in this mode. The drive assigns echo  
buffer on a per initiator basis. The initiator will attempt to ensure that the parameter list length does not exceed the  
capacity of the echo buffer. The BUFFER CAPACITY field in the READ BUFFER echo buffer descriptor  
determines the capacity of the echo buffer. If the PARAMETER LIST LENGTH field exceeds the buffer capacity,  
the drive will return a CHECK CONDITION status with a Request Sense Key of ILLEGAL REQUEST.  
Table 6-105: WRITE BUFFER Mode Field  
Buffer ID: The supported values are:  
Buffer ID  
Description  
Offset  
- 0x01000000  
- 0x01000000  
0
Write Group Buffer  
Write Group Buffer  
Write Group Buffer  
Write Group Buffer  
Write Group Buffer  
0
0
80  
81  
82  
83  
0x01000000 - 0x02000000  
0x02000000 - 0x03000000  
0x03000000 - 0x03700000  
If an unsupported Buffer ID code is requested, the drive returns a CHECK CONDITION status with an ILLEGAL  
REQUEST sense key.  
6-106  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
WRITE BUFFER  
6.Command Specification  
Buffer Offset: The buffer offset field contains the byte offset within the specified buffer from which data will be  
transferred to. The initiator will conform to the offset boundary requirements returned in the WRITE BUFFER  
descriptor. If this field is not set to a four-byte boundary, it will return a CHECK CONDITION status with an  
ILLEGAL REQUEST sense key and set the Additional Sense Code to ILLEGAL FIELD IN CDB.  
Parameter List Length: This field specifies the maximum number of bytes that will be transferred during the  
Data-Out phase. The initiator will attempt to ensure that the Parameter List Length does not exceed the buffer  
capacity. If this does occur, the drive returns a CHECK CONDITION status with an ILLEGAL REQUEST sense  
key .The capacity of the buffer can be determined from the Buffer capacity field in the Read Buffer descriptor. The  
Parameter List Length must be greater than four and be aligned to a four-byte boundary (except in data only  
mode), Otherwise, the drive will return a CHECK CONDITION status with an ILLEGAL REQUEST sense key set.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
6-107  
6.Command Specification  
WRITE FILEMARKS  
6.32. WRITE FILEMARKS 10h  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Operation Code (10h)  
Reserved  
1
2
3
4
5
WSmk  
Immed  
(LSB)  
(MSB)  
Number of Filemarks or Setmarks  
Control  
The WRITE FILEMARKS command causes the specified number of Filemarks or Setmarks to be written to the  
current logical position.  
WSmk: If this bit is set, the drive writes a Setmark to tape instead of a Filemark.  
Immed: If this bit is set, the drive returns status as soon as the CDB has been validated. An Immediate bit of  
ZERO indicates that status will not be returned until the operation has completed.  
Number of Filemarks or Setmarks: This is the number of consecutive marks to be written to tape. A value of  
ZERO is not considered an error and GOOD status is returned. If this field is set to ZERO, the drive flushes any  
data buffer to the tape.  
If the Early-Warning is detected while writing the marks, the drive will finish writing any buffered data. The  
command will terminate with a CHECK CONDITION status. Within the Sense Data, the EOM bit is set, the Sense  
Key field is set to NO SENSE and the Additional Sense Code and Additional Sense Code Qualifier fields are set to  
EOM/P detected. The drive will attempt to complete any subsequent WRITE FILEMARKS, returning a CHECK  
CONDITION status in each case.  
If the drive encounters the physical EOM when attempting a WRITE FILEMARKS, a CHECK CONDITION status is  
returned. Within the Sense Data, the EOD and Valid bits are set and the Sense Key field is set to VOLUME  
OVERFLOW. The Information field contains the residue count and the Additional Sense Code and Additional  
Sense Code Qualifier fields are set to EOM/P Detected. The tape is physically positioned at EOM/P.  
6-108  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
7.Drive Diagnostics  
7. Drive Diagnostics  
This clause deals with the diagnostics supported by the drive. Each diagnostic is described in detail and possible  
error codes are discussed.  
7.1. Overview  
The diagnostic firmware for this product is designed to achieve the following objectives:  
- Isolate hardware failures  
- Verify the media  
- Provide predictive information which can lead to the early detection of potential problems  
- Provide remote support capabilities  
- Satisfy manufacturing testing needs  
How these objectives are achieved:  
- Fault isolation is achieved by providing an extensive set of diagnostic tests.  
- Media verification is achieved by error rate testing and tape logs.  
- Predictive data is provided in the form of a tape log and runtime error logs. Logs are maintained within the drive's  
RAM, EEPROM and on the AIT cassettes.  
- Remote support capability is provided by allowing all tests and test sequences to be initiated via the host  
interface. Similarly, all test results are reported back to the host via the interface.  
- Manufacturing needs are satisfied by providing unrestricted access to all internal tests.  
7.2. Diagnostic Test  
This clause describes the Diagnostic Test facilities of the drive. The method for executing tests and receiving test  
results from the Host is described and a full list of available tests and possible result messages is given.  
Diagnostics can be initiated in several ways:  
- Power-on Self Test  
- Send Diagnostic command initiating a Self Test  
- Send Diagnostic command initiating a specific test or sequence  
Each type of Diagnostics will be described in detail.  
7.2.1. Power-on Self Test  
Each time power is applied to the drive which will automatically perform a series of diagnostics on itself to insure  
that the basic functions of the drive are performing properly. The power-on Self Test sequence is shown below:  
Power supply voltage exceeds power-up threshold  
61  
62  
Main Processor ROM checksum  
Main Processor Destructive RAM Test  
The following 3 tests are initiated automatically after power-up and therefore would be executing in parallel with  
the tests listed above.  
30  
71  
72  
Front Panel Check  
Buffer RAM Test  
DMA Test  
If a failure occurs with any of the power-on diagnostic tests, the drive will halt with the Status LED flashing.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
7-1  
7.Drive Diagnostics  
If an error is detected during power-up, the drive will return a CHECK CONDITION status to the host on the  
command received first. The host shall issue a REQUEST SENSE command to determine the cause of the  
CHECK CONDITION status. The Sense data returned by the drive will have a Sense Key of 6 (Unit Attention) and  
the ASC/ASCQ will be 29 80 (Drive failed power or test or diagnostic). The host can then issue a RECEIVE  
DIAGNOSTIC RESULT command to the drive in order to identify the specific diagnostic test that failed and the  
failure error code.  
The drive should be checked by a qualified person to determine what action should be taken.  
7.2.2. SEND DIAGNOSTIC command - Self Test  
The host computer can request that the drive perform a Self Test on itself to verify that it is functioning normally.  
The Self Test bit in the SEND DIAGNOSTIC command is set to ONE, and the Parameter List Length is ZERO.  
This initiates the Self Test Diagnostic which is similar to the Power-on self test except that non-destructive RAM  
testing is substituted for the destructive RAM tests.  
If an error is detected during this test, the drive will return a CHECK CONDITION status to the host. The host shall  
issue a REQUEST SENSE command to determine the cause of the CHECK CONDITION status. The Sense data  
returned by the drive will have a Sense Key of 4 (Hardware Error) and the ASC/ASCQ will be 44 00 (Internal  
Target Failure). The host can then issue a RECEIVE DIAGNOSTIC RESULT command to the drive in order to  
identify the specific diagnostic test that failed and the failure error code.  
The drive should be checked by a qualified person to determine what action should be taken.  
7.2.3. SEND DIAGNOSTIC command - Individual Test  
The SEND DIAGNOSTIC command also provides the capability to run each of the diagnostic tests individually. In  
order to identify the diagnostic test to be executed, the SEND DIAGNOSTIC command should be configured as  
follows:  
Self Test bit = 0  
Device Off-line bit = 0  
Unit Off-line bit = 1  
Parameter List Length = 5 or 9 (see below)  
The Page Format (PF) bit is ZERO and the Parameter List Length is 5, the Parameter List in this case is 5 bytes  
long and will be of the form:  
Table 7-1: SEND DIAGNOSTIC Parameter If PF bit is ZERO  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Diagnostic Test number  
Loop Count  
1
2
3
4
Break  
Parameter A  
Parameter B  
Parameter C  
7-2  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
7.Drive Diagnostics  
The Page Format (PF) bit is ONE, and the Parameter List Length is 9, the Parameter List in this case is 9 bytes  
long and will be of the form:  
Table 7-2: SEND DIAGNOSTIC Parameters If PF bit is ONE  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Page Code (81h)  
Reserved  
Page Length (00 05h)  
1
2
3
4
5
6
7
8
(MSB)  
Break  
(LSB)  
Diagnostic Test Number  
Loop Count Identifier  
Parameter A  
Parameter B  
Parameter C  
Break: This field allows the initiator to terminate the diagnostic test when an error occurs.  
0 = stop on first error  
1 = do not stop on error  
Loop Count Identifier: The number of times that the test should be repeated before status is returned.  
0 = run once  
1 = run once  
2 = run 10 times  
3 = run 100 times  
4 = run 1000 times  
Parameters A, B, C: Any additional parameters required to fully define the diagnostic test. These parameters are  
unused and will be 00h.  
7.2.4. Diagnostic Test Number Summary  
The following is a list of the diagnostic capabilities of the drive. The Test Availability Code indicates if a particular  
test can be executed by the Host computer or is executed during Power-on diagnostics (or both). The drive also  
supports three types of diagnostics:  
1. Individual Tests - Self contained modules designed to test a particular function of drive  
2. Sequences - Automatic execution of a series of individual tests  
3. Exercisers - Verification of a major function of the drive such as Read, Write, Search, etc.  
The Diagnostic Test Number for each Test, Sequence or Exerciser is shown in the first column.  
Test Availability Codes  
P
Power–on Self–test  
Host Diagnostics  
both  
H
PH  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
7-3  
7.Drive Diagnostics  
Sequence Test  
00  
Reset Sequence (61, 62, 71,72, 30)  
H
Main Processor Kernel Test  
61  
62  
Main Processor ROM checksum  
Main Processor Destructive RAM Test  
P
P
Drive Test  
71  
72  
Buffer RAM Test  
DMA Test  
PH  
PH  
7.2.5. RECEIVE DIAGNOSTIC RESULT command  
Whenever a diagnostic test is executed, the drive automatically prepares a diagnostic test result that can be  
returned to the host computer when a RECEIVE DIAGNOSTIC RESULT command is issued.  
If the PF bit in the SEND DIAGNOSTIC command was sent to one, the diagnostic test result will be preceded by a  
four-byte header which will be of the form:  
Table 7-3: RECEIVE DIAGNOSTIC RESULT - SCSI-2 Header  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
1
2
3
Page Code (81h)  
Reserved  
Page Length (00 05h)  
(MSB)  
(LSB)  
Regardless of the PF bit in the SEND DIAGNOSTIC command, the five bytes of diagnostic test result information  
will be of the form:  
Table 7-4: RECEIVE DIAGNOSTIC RESULT  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Reset  
Error  
Time  
Re-Sync  
Reserved  
Error Set  
1
2
3
4
Error Code  
Result A  
Result B  
Diagnostic Test Number  
Reset error: This bit is set when an error occurs during power-on self-test.  
Time Re-Sync: This bit indicates that the time stamp saved with the error log has no relation to that of the  
previous entry. It is only set by the logging routine within the data buffer as an error is logged.  
7-4  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
7.Drive Diagnostics  
Error set: Two set of error codes exist. The definition of the error is dependent upon when set is taken from as  
follows:  
0 - Runtime errors  
2 - Drive diagnostic errors  
Error code: Error codes for each error set are described in clause 6.22.  
Result A: Typically this byte indicates the logical sub-assembly that failed:  
1 - Drive Mechanism  
2 - Drive Circuitry  
Note: This byte has alternate meanings with some diagnostics. Refer to clause 6.22.  
Result B: Typically this byte is unused however, this byte has alternate meanings with some diagnostics. Refer to  
clause 6.22.  
Test number: This is the test number to which the message applies (if a test fails within a sequence, the individual  
test number will be returned).  
Note: Diagnostic test 30 (Front Panel Check) will light each of the front panel LEDs so that the operator can verify  
that the LEDs are functioning. There is no error detection within the drive for this test and therefore the Error Code,  
Result A and Result B will always be ZERO.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
7-5  
7.Drive Diagnostics  
This page intentionally left blank.  
7-6  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
8.APPENDIX A: ASC & ASCQ Alphabetic Order  
8. APPENDIX A: ASC & ASCQ Alphabetic Order  
ASC and ASCQ Assignments  
Alphabetic Order  
BYTE  
12  
13  
DESCRIPTION  
55  
11  
0C  
00  
14  
83  
30  
30  
52  
30  
30  
4A  
2C  
4B  
70  
29  
00  
14  
00  
5D  
00  
30  
11  
48  
55  
44  
3D  
20  
24  
26  
49  
04  
06  
12  
0B  
04  
04  
87  
02  
05  
00  
07  
03  
00  
00  
00  
NN  
80  
05  
03  
02  
00  
01  
00  
08  
00  
04  
00  
00  
00  
00  
00  
00  
01  
AUXILIARY MEMORY OUT OF SPACE  
AUXILIARY MEMORY READ ERROR  
AUXILIARY MEMORY WRITE ERROR  
BEGINNING-OF-PARTITION/MEDIUM DETECTED  
BLOCK SEQUENCE ERROR  
BROKEN MIC IS LOADED IN AIT MODE  
CANNOT READ MEDIUM - INCOMPATIBLE FORMAT  
CANNOT WRITE MEDIUM - INCOMPATIBLE FORMAT  
CARTRIDGE FAULT  
CLEANING FAILURE  
CLEANING CARTRIDGE INSTALLED  
COMMAND PHASE ERROR  
COMMAND SEQUENCE ERROR  
DATA PHASE ERROR  
DECOMPRESSION EXCEPTION SHORT ALGORITHM ID OF NN  
DRIVE FAILED POWER-ON TEST OR DIAGNOSTIC - (SONY Unique)  
END-OF-DATA DETECTED  
END-OF-DATA NOT FOUND  
END-OF-PARTITION/MEDIUM DETECTED  
FAILURE PREDICTION THRESHOLD EXCEEDED  
FILEMARK DETECTED  
INCOMPATIBLE MEDIUM INSTALLED  
INCOMPLETE BLOCK READ  
INITIATOR DETECTED ERROR MESSAGE RECEIVED  
INSUFFICIENT REGISTRATION RESOURCES  
INTERNAL TARGET FAILURE  
INVALID BITS IN IDENTIFY MESSAGE  
INVALID COMMAND OPERATION CODE  
INVALID FIELD IN CDB  
INVALID FIELD IN PARAMETER LIST  
INVALID MESSAGE ERROR  
LOGICAL UNIT IS IN PROCESS OF BECOMING READY  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
8-1  
8.APPENDIX A: ASC & ASCQ Alphabetic Order  
04  
04  
25  
15  
3F  
31  
3A  
3A  
43  
3F  
2A  
00  
28  
10  
00  
00  
01  
11  
00  
00  
04  
00  
01  
01  
00  
00  
LOGICAL UNIT NOT READY, AUXILIARY MEMORY NOT ACCESSIBLE  
LOGICAL UNIT NOT READY, CAUSE NOT REPORTABLE  
LOGICAL UNIT NOT SUPPORTED  
MECHANICAL POSITIONING ERROR  
MEDIUM AUXILIARY MEMORY ACCESIBLE  
MEDIUM FORMAT CORRUPTED  
MEDIUM NOT PRESENT  
MEDIUM NOT PRESENT_MEDIUM AUXILIARY MEMORY ACCESIBLE  
MESSAGE ERROR  
MICROCODE HAD BEEN CHANGED  
MODE PARAMETERS CHANGED  
NO ADDITIONAL SENSE INFORMATION  
NOT READY TO READY TRANSITION  
(MEDIUM MAY HAVE CHANGED)  
OVERLAPPED COMMANDS ATTEMPTED  
PARAMETER LIST LENGTH ERROR  
PARAMETER NOT SUPPORTED  
PARAMETER VALUE INVALID  
4E  
1A  
26  
26  
2A  
47  
03  
27  
15  
29  
2A  
2A  
3B  
39  
45  
00  
33  
11  
00  
00  
01  
02  
00  
00  
00  
04  
02  
00  
05  
03  
08  
00  
00  
03  
00  
00  
00  
00  
00  
PARAMETERS CHANGED  
PARITY ERROR  
PERIPHERAL DEVICE WRITE FAULT  
PERSISTENT WRITE PROTECT  
POSITIONING ERROR DETECTED BY READ OF MEDIUM  
POWER ON, RESET, OR BUS DEVICE RESET OCCURRED  
REGISTRATION PREEMPTED  
RESERVATION PREEMPTED  
REPOSITION ERROR  
SAVING PARAMETER NOT SUPPORTED  
SELECT OR RESELECT FAILURE  
SETMARK DETECTED  
TAPE LENGTH ERROR  
UNRECOVERED READ ERROR  
50  
0C  
27  
WRITE APPEND ERROR  
WRITE ERROR  
WRITE PROTECTED  
8-2  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
9.APPENDIX B: ASC & ASCQ Numeric Order  
9. APPENDIX B: ASC & ASCQ Numeric Order  
ASC and ASCQ Assignments  
Numeric Order  
BYTE  
12  
13  
DESCRIPTION  
00  
00  
00  
00  
00  
00  
03  
04  
04  
04  
0C  
0C  
11  
11  
11  
14  
15  
15  
1A  
20  
24  
25  
26  
26  
26  
27  
27  
28  
00  
01  
02  
03  
04  
05  
00  
00  
01  
10  
00  
0B  
00  
08  
12  
03  
01  
02  
00  
00  
00  
00  
00  
01  
02  
00  
04  
00  
NO ADDITIONAL SENSE INFORMATION  
FILEMARK DETECTED  
END-OF-PARTITION/MEDIUM DETECTED  
SETMARK DETECTED  
BEGINNING-OF-PARTITION/MEDIUM DETECTED  
END-OF-DATA DETECTED  
PERIPHERAL DEVICE WRITE FAULT  
LOGICAL UNIT NOT READY, CAUSE NOT REPORTABLE  
LOGICAL UNIT IS IN PROCESS OF BECOMING READY  
LOGICAL UNIT NOT READY, AUXILIARY MEMORY NOT ACCESSIBLE  
WRITE ERROR  
AUXILIARY MEMORY WRITE ERROR  
UNRECOVERED READ ERROR  
INCOMPLETE BLOCK READ  
AUXILIARY MEMORY READ ERROR  
END-OF-DATA NOT FOUND  
MECHANICAL POSITIONING ERROR  
POSITIONING ERROR DETECTED BY READ OF MEDIUM  
PARAMETER LIST LENGTH ERROR  
INVALID COMMAND OPERATION CODE  
INVALID FIELD IN CDB  
LOGICAL UNIT NOT SUPPORTED  
INVALID FIELD IN PARAMETER LIST  
PARAMETER NOT SUPPORTED  
PARAMETER VALUE INVALID  
WRITE PROTECTED  
PERSISTENT WRITE PROTECT  
NOT READY TO READY TRANSITION  
(MEDIUM MAY HAVE CHANGED)  
29  
29  
2A  
2A  
00  
80  
00  
01  
POWER ON, RESET, OR BUS DEVICE RESET OCCURRED  
DRIVE FAILED POWER-ON TEST OR DIAGNOSTIC - (SONY Unique)  
PARAMETERS CHANGED  
MODE PARAMETERS CHANGED  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
9-1  
9.APPENDIX B: ASC & ASCQ Numeric Order  
2A  
2A  
2C  
30  
30  
30  
30  
30  
31  
33  
39  
3A  
3A  
3B  
3D  
3F  
3F  
43  
44  
45  
47  
48  
49  
4A  
4B  
4E  
50  
52  
55  
55  
5D  
70  
83  
03  
05  
00  
00  
02  
03  
05  
07  
00  
00  
00  
00  
04  
08  
00  
01  
11  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
04  
06  
00  
NN  
87  
RESERVATION PREEMPTED  
REGISTRATION PREEMPTED  
COMMAND SEQUENCE ERROR  
INCOMPATIBLE MEDIUM INSTALLED  
CANNOT READ MEDIUM - INCOMPATIBLE FORMAT  
CLEANING CARTRIDGE INSTALLED  
CANNOT WRITE MEDIUM - INCOMPATIBLE FORMAT  
CLEANING FAILURE  
MEDIUM FORMAT CORRUPTED  
TAPE LENGTH ERROR  
SAVING PARAMETER NOT SUPPORTED  
MEDIUM NOT PRESENT  
MEDIUM NOT PRESENT_MEDIUM AUXILIARY MEMORY ACCESIBLE  
REPOSITION ERROR  
INVALID BITS IN IDENTIFY MESSAGE  
MICROCODE HAD BEEN CHANGED  
MEDIUM AUXILIARY MEMORY ACCESIBLE  
MESSAGE ERROR  
INTERNAL TARGET FAILURE  
SELECT OR RESELECT FAILURE  
PARITY ERROR  
INITIATOR DETECTED ERROR MESSAGE RECEIVED  
INVALID MESSAGE ERROR  
COMMAND PHASE ERROR  
DATA PHASE ERROR  
OVERLAPPED COMMANDS ATTEMPTED  
WRITE APPEND ERROR  
CARTRIDGE FAULT  
INSUFFICIENT REGISTRATION RESOURCES  
AUXILIARY MEMORY OUT OF SPACE  
FAILURE PREDICTION THRESHOLD EXCEEDED  
DECOMPRESSION EXCEPTION SHORT ALGORITHM ID OF NN  
BROKEN MIC IS LOADED IN AIT MODE  
9-2  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
10.APPENDIX C: ASC & ASCQ for AIT (Sony Unique)  
10. APPENDIX C: ASC & ASCQ for AIT (Sony Unique)  
ASC and ASCQ Assignments for AIT drive (Sony Unique)  
Numeric Order  
BYTE  
12  
13  
DESCRIPTION  
83h  
83h  
83h  
83h  
83h  
83h  
83h  
83h  
83h  
83h  
83h  
83h  
83h  
83h  
00h  
01h  
02h  
03h  
04h  
05h  
06h  
07h  
08h  
09h  
0Ah  
0Bh  
0Ch  
0Dh  
Reserved  
MIC Header Error  
No MIC Detected  
MIC Checksum Error  
MIC out of memory  
No Data Body Detected in the MIC  
MIC Read Error  
No Cassette Detected  
MIC is not formatted yet  
MIC Write Fault  
Requested address is write protected on the MIC  
MIC is broken  
MIC format type is undefined  
MIC capacity field indicates illegal value. Acceptable value is 2Kbytes, 4Kbytes, 8Kbytes.  
The drive will handle the MIC is 2Kbytes, when capacity field indicates illegal value.  
83h  
0Eh  
:
Reserved  
83h  
83h  
83h  
83h  
83h  
83h  
7Fh  
80h  
81h  
82h  
83h  
84h  
Partition count exceeded  
Reserved  
Reserved  
MIC is exist but is not used  
Reserved  
83h  
83h  
83h  
83h  
83h  
83h  
86h  
87h  
88h  
89h  
8Ah  
8Bh  
Broken MIC is loaded in AIT mode  
Reserved  
User Volume Note Size mismatch  
User Partition Note Size mismatch  
:
Reserved  
83h  
83h  
83h  
83h  
83h  
96h  
97h  
98h  
99h  
9Ah  
Current Partition is not the last partition.  
Cannot append the new partition, because the remaining capacity too short.  
Cannot delete partition, because the indicated partition number is not appropriate.  
Encounter the EOT while creating the new partition, append partition command is not  
completed. (If a drive misleads the tape capacity by some reason, format command will be  
failed on the way. In case of the situation, the Last Partition Number must hold the Last  
Valid Partition Number, because it is reasonable and time saving. )  
Cannot format tape because real tape capacity is exceeded.  
83h  
83h  
83h  
9Bh  
9Ch  
9Dh  
Cannot append new partitions because the MIC is out of memory.  
:
Reserved  
83h  
FFh  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
10-1  
10.APPENDIX C: ASC & ASCQ for AIT (Sony Unique)  
This page intentionally left blank.  
10-2  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
11.APPENDIX D: SCSI Commands (OP Code Order)  
11. APPENDIX D: SCSI Commands (Op Code Order)  
The following is a list of the supported SCSI Commands and page index:  
PARA SCSI COMMAND  
OP CODE  
PAGE  
6.28  
6.24  
6.22  
6.14  
6.12  
6.29  
6.32  
6.27  
6.2  
TEST UNIT READY  
REWIND  
00h  
01h  
03h  
05h  
08h  
0Ah  
10h  
11h  
12h  
15h  
16h  
17h  
19h  
1Ah  
1Bh  
1Ch  
1Dh  
1Eh  
2Bh  
34h  
3Bh  
3Ch  
44h  
4Ch  
4Dh  
55h  
56h  
57h  
5Ah  
5Eh  
5Fh  
8Ch  
8Dh  
A0h  
6-102  
6-95  
6-84  
6-69  
6-63  
6-103  
6-108  
6-99  
6-3  
REQUEST SENSE  
READ BLOCK LIMITS  
READ  
WRITE  
WRITE FILEMARKS  
SPACE  
INQUIRY  
6.7  
MODE SELECT (6)  
RESERVE (6)  
6-40  
6-93  
6-77  
6-2  
6.23  
6.18  
6.1  
RELEASE (6)  
ERASE  
6.8  
MODE SENSE (6)  
LOAD/UNLOAD  
6-54  
6-8  
6.3  
6.17  
6.25  
6.11  
6.4  
RECEIVE DIAGNOSTIC RESULTS  
SEND DIAGNOSTIC  
PREVENT ALLOW MEDIUM REMOVAL  
LOCATE  
6-75  
6-96  
6-62  
6-10  
6-73  
6-106  
6-70  
6-79  
6-11  
6-13  
6-40  
6-93  
6-77  
6-54  
6-57  
6-60  
6-65  
6-104  
6-83  
6.16  
6.31  
6.15  
6.19  
6.5  
READ POSITION  
WRITE BUFFER  
READ BUFFER  
REPORT DENSITY SUPPORT  
LOG SELECT  
6.6  
LOG SENSE  
6.7  
MODE SELECT (10)  
RESERVE (10)  
6.23  
6.18  
6.8  
RELEASE (10)  
MODE SENSE (10)  
PERSISTENT RESERVE IN  
PERSISTENT RESERVE OUT  
READ ATTRIBUTE  
WRITE ATTRIBUTE  
REPORT LUNS  
6.9  
6.10  
6.13  
6.30  
6.21  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
11-1  
11.APPENDIX D: SCSI Commands (OP Code Order)  
6.26  
6.20  
SET DEVICE ID  
A4h  
A3h  
6-98  
6-82  
REPORT DEVICE ID  
11-2  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
12.APPENDIX E: Medium Auxiliary Memory Attribute  
12. APPENDIX E: Medium Auxiliary Memory  
Attribute  
12.1. INTRODUCTION  
This section will outline the design specifications for the implementation of selected Medium Auxiliary Memory  
(MAM) attributes.  
12.2. OVERVIEW  
An increasing number of media types are incorporating small memory components into their products. The  
creation and acceptance of the “Proposed Addition of Read and Write Attribute Commands to SPC-2” (AM  
document) provides a uniform method to access the data stored on the Medium Auxiliary Memory. This section will  
provide details on using MAM with this product.  
12.3. MEDIUM AUXILIALY MEMORY ATTRIBUTE TYPES AND STATES  
A MAM attribute is represented in a format described in the next section and is composed of:  
1. An attribute identifier,  
2. An attribute format code,  
3. A bit indicating whether the identified attribute is read only,  
4. An attribute length specifying the number of bytes in the identified attribute value, and  
5. The value of the identified attribute.  
There are three types of attribute (Table 12-1).  
Table 12-1: Types of MAM Attributes  
Attribute Type  
Attribute Source  
Example  
Readable with  
READ  
Writable with  
WRITE  
ATTRIBUTE  
ATTRIBUTE  
Medium  
Permanently stored in the Media  
medium auxiliary memory Serial  
Yes  
No  
during manufacture.  
Number  
Device  
Host  
Maintained by the drive  
Load  
Yes  
Yes  
No  
Count  
Backup  
date  
Maintained by the  
application client.  
Yes  
Depending on that attribute type, attributes have the states shown in Table 12-1  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
12-1  
12.APPENDIX E: Medium Auxiliary Memory Attribute  
Table 12-2: MAM Attribute states  
Attribute Type  
Medium or Device  
Attribute State  
Read Only  
Description  
An application server may read the contents of the  
attribute with the READ ATTRIBUTE command, but an  
attempt to clear or change the attribute using the WRITE  
ATTRIBUTE command will result in the command being  
terminated with a CHECK CONDITION status. When the  
READ ONLY bit is one, the attribute is in the read only  
state.  
Unsupported  
Nonexistent  
Read/Write  
The drive does not support the attribute and will not return  
it in response to a READ ATTRIBUTE command.  
A host attribute does not exist in the medium auxiliary  
memory until a WRITE ATTRIBUTE command creates it.  
The attribute has been created using the WRITE  
ATTRIBUTE command. After the attribute has been  
created, the contents may be altered using subsequent  
WRITE ATTRIBUTE commands. A read/write attribute  
may be returned to be nonexistent state using a WRITE  
ATTRIBUTE command with the attribute length set to  
zero. When the READ ONLY bit is zero, the attribute is in  
the read/write state.  
Host  
Read and Write Attribute Commands:  
The READ ATTRIBUTE (8Ch) and WRITE ATTRIBUTE (8Dh) commands will be implemented as follows.  
12.4. MEDIUM AUXILIARY MEMORY ATTRIBUTE DATA  
12.4.1. Attribute Format  
Each medium auxiliary memory attribute will be communicated between the application client and drive in the  
format shown in Table 12-3. This format will be used in the parameter data for the WRITE ATTRIBUTE command  
and the READ ATTRIBUTE command. The attribute format in this standard implies nothing about the physical  
representation of an attribute in the medium auxiliary memory.  
Table 12-3: MAM ATTRIBUTE Format  
Bit  
Byte  
7
6
5
4
3
2
1
0
0
1
2
(MSB)  
ATTRIBUTE IDENTIFIER  
Reserved  
(LSB)  
READ  
ONLY  
(MSB)  
FORMAT  
3
4
ATTRIBUTE LENGTH (n-4)  
(LSB)  
(LSB)  
5
(MSB)  
ATTRIBUTE VALUE  
N
The ATTRIBUTE IDENTIFIER field contains a code value identifying the attribute.  
12-2  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
12.APPENDIX E: Medium Auxiliary Memory Attribute  
The READ ONLY bit indicates whether the attribute is in the read only state. If the READ ONLY bit is one, the  
attribute is in the read only state. If the READ ONLY bit is zero, the attribute is in the read/write state.  
The FORMAT field (Table 12-4) specifies the format of the data in the ATTRIBUTE VALUE field. ATTRIBUTES  
defined by this standard include a requirement for the contents of the FORMAT field.  
Table 12-4: MAM attribute formats  
Format  
00b  
01b  
Name  
BINARY  
ACSII  
Description  
The ATTRIBUTE VALUE will contain binary data.  
The ATTRIBUTE VALUE field will contain only graphic codes (i.e.  
byte code values 20h through &Eh), will be left-aligned placing any  
unused bytes at the highest offset in the field, contain 20h (i.e. ASCII  
space) in any unused bytes.  
10b  
11b  
TEXT  
The attribute contains textual data. The character set is as described  
in the TEXT LOCALIZATION IDENTIFER attribute.  
Reserved  
The ATTRIBUTE LENGTH field specifies the length in bytes of the ATTRIBUTE VALUE field. Attributes defined by  
this standard include a requirement for the contents of the ATTRIBUTE LENGTH field.  
The ATTRIBUTE VALUE Field contains that current (READ ATTRIBUTE) or desired (WRITE ATTRBUTE) value of  
the attribute.  
12.4.2. Attribute Identifier Values  
The values in the ATTRIBUTE IDENTIFIER field are assigned according to the attribute type and whether the  
attribute is standard or vendor unique (Table 12-5).  
Table 12-5: MAM attribute identifier range assignments  
Attribute Identifiers  
0000h – 03FFh  
0400h – 07FFh  
0800h – 0BFFh  
0C00h – 0FFFh  
1000h – 13FFh  
1400h – 17FFh  
1800h – FFFFh  
Attribute Type  
Device  
Medium  
Host  
Device  
Medium  
Host  
Standardization  
Yes  
Yes  
Yes  
Vendor Unique  
Vendor Unique  
Vendor Unique  
Reserved  
Drive will accept and process a WRITE ATTRIBUTES command containing standardized host type attribute  
identifier values (i.e. 0800h-0BFFh) or vendor unique host type attribute identifier values (i.e., 1400h-17FFh).  
Standardized host type attribute identifier values may be checked for conformance to the requirements described  
later.  
12.4.3. Standard Device Type Attributes  
Device types attributes (Table 12-6) will be maintained and updated by the drive when the medium and associated  
medium auxiliary memory are present. All supported medium type attributes will have a status of read only.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
12-3  
12.APPENDIX E: Medium Auxiliary Memory Attribute  
Table 12-6: Device Common Attributes  
Attribute Name  
ID  
#Bytes Format  
0000h  
0001h  
0002h  
0003h  
0004h  
0005h  
0006h  
0007h  
REMAINING CAPACITY IN PARTITION  
MAXIMUM CAPACITY IN PARTITION  
TAPEALERT FLAGS  
LOAD COUNT  
MAM SPACE REMAINING  
ASSIGNING ORGANISATION  
FORMATTED DENSITY CODE  
INITIALIZATION COUNT  
8
8
8
8
8
8
1
2
Binary  
Binary  
Binary  
Binary  
Binary  
ASCII  
Binary  
Binary  
0008h-0209h  
020Ah  
020Bh  
020Ch  
020Dh  
020Eh – 021Fh  
0220h  
Reserved  
DEVICE MAKE/SERIAL NUMBER AT LAST LOAD  
DEVICE MAKE/SERIAL NUMBER AT LOAD - 1  
DEVICE MAKE/SERIAL NUMBER AT LOAD - 2  
DEVICE MAKE/SERIAL NUMBER AT LOAD - 3  
Reserved  
TOTAL MBYTES WRITTEN IN MEDIUM LIFE  
TOTAL MBYTES READ IN MEDIUM LIFE  
TOTAL MBYTES WRITTEN IN CURRENT IN CURRENT /LAST  
LOAD  
40  
40  
40  
40  
ASCII  
ASCII  
ASCII  
ASCII  
8
8
8
Binary  
Binary  
Binary  
0221h  
0222h  
0223h  
0224h – 033Fh  
0340h  
0341h  
0342h – 03FFh  
TOTAL MBYTES READ IN CURRENT IN CURRENT /LAST LOAD  
Reserved  
MEDIUM USAGE HISTORY  
PARTITION USAGE HISTORY  
Reserved  
8
Binary  
90  
60  
Binary  
Binary  
0000h REMAINING CAPCACITY IN PARTITION and 0001h MAXIMUM CAPACITY IN PARTITION: These  
attribute values are Native capacities assuming no data compression for the specified medium partition. These  
values are expressed in increments of 1,048,576 bytes (i.e. a value of one means 1,048,576 bytes, two means  
2,097,152 bytes, etc).  
0002h TAPEALERT FLAGS: This attribute value provides a means of reporting the state of the Tape Alert flags  
for the previous load of the medium. Each Tape Alert flag occupies one bit (Flag 1 = MSB Byte 1; Flag 64 = LSB,  
Byte 8). The bits specify all the Tape Alert flags that were set during the previous load. (I.e. the bits are “sticky” for  
the load).  
003h LOAD COUNT: This attribute value indicates how many times this medium has been fully loaded. This  
attribute should not be reset by any action of the drive.  
0004h MAM SPACE REMAINING: This attribute value indicates the space currently free in the medium auxiliary  
memory. The total medium auxiliary memory capacity is reported in the MAM CAPACITY attribute.  
0005h ASSIGNING ORGANISATION: This attribute value identifies the organization responsible for the  
specifications defining the values in the formatted DENSITY CODE attribute. The ASSIGNING ORGANIZATION  
field will contain a value listed in the vendor identification list. The use of specific vendor identification, other than  
the one associated with the device is allowed.  
Note: It is intended that this field provide a unique vendor identification of the FORMATTED DENSITY CODE  
attribute. In the absence of a formal registration procedure, T10 maintains a list of known vendor identification  
codes in use. Vendors are requested to voluntarily submit their identification codes to T10 to prevent duplication of  
codes.  
12-4  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
12.APPENDIX E: Medium Auxiliary Memory Attribute  
0006h FORMATTED DENSITY CODE: This attribute value provides information about the tape format for the  
user.  
0007h INITIALIZATION COUNT: This attribute value indicates the number of times that a drive has logically  
formatted the medium. This figure is cumulative over the life of the medium and will never be reset.  
020Ah, 020Bh, 020Ch, 020Dh DEVICE MAKE/SERIAL NUMBER AT LAST LOAD, DEVICE MAKE/SERIAL  
NUMBERAT LOAD – 1, DEVICE MAKE/SERIAL NUMBER AT LOAD – 2 AND DEVICE MAKE/SERIAL  
NUMBER AT LOAD –3: These attribute values give a rolling history of the last four drives in which the medium  
has been loaded. The format of the attributes is shown in Table 12-7  
Table 12-7: DEVICE VENDOR/SERIAL NUMBER attribute format  
Bit  
Byte  
7
6
5
4
3
2
1
0
0
(MSB)  
VENDOR IDENTIFICATION  
PRODUCT SERIAL NUMBER  
7
(LSB)  
(LSB)  
8
(MSB)  
39  
VENDOR IDENTIFICATION: This field will be the same value returned in the standard INQUIRY data.  
PRODUCT SERIAL NUMBER: This field contains a vendor unique serial number. If the product serial number is  
not available, the PRODUCT SERIAL NUMBER field will contain ASCII spaces (20h).  
0220h TOTAL MBYTES WRITTEN IN MEDIUM LIFE and 0221h TOTAL MBYTES READ IN MEDIUM LIFE:  
These attribute values indicate the total number of data bytes that are transferred to or from the medium surface,  
after any data compression has been applied, over the entire medium life. These values are cumulative and will  
never be reset. These values are expressed in increments of 1,048,576 bytes (i.e. a value of one means  
1,048,576 bytes, two means 2, 097,152 bytes, etc).  
0222h TOTAL MBYTES WRITTEN IN CURRENT/LAST LOAD AND 0223h TOTAL MBYTES READ IN  
CURRENT/LAST LOAD: These attribute values indicate the total number of data bytes that are transferred to or  
from the medium surface, after any data compression has been applied, during the current load if the medium is  
currently loaded, or the last load if the medium is currently unloaded. The drive should reset these attributes to  
zero when the medium is loaded. These values are expressed in increments of 1,048,576 bytes  
(I.e. a value of one means 1,048,576 bytes, two means 2,097,152 bytes, etc).  
0340h MEDIUM USAGE HISTORY: This attribute value provides statistical counters (Table 12-8) for the entire  
medium. The value in each field is the sum for all partitions. If a field is not used, it should be set to zero.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
12-5  
12.APPENDIX E: Medium Auxiliary Memory Attribute  
Table 12-8: Medium USAGE HISTORY attribute format  
Bit  
Byte  
7
6
5
4
3
2
1
0
0
(MSB)  
CURRENT AMOUNT OF DATA WRITTEN  
The CURRENT WRITE RETRIES COUNT  
CURRENT AMOUNT OF DATA READ  
CURRENT READ RETRIES COUNT  
PREVIOUS AMOUNT OF DATA WRITTEN  
PREVIOUS WRITE RETRIES COUNT  
PREVIOUS AMOUNT OF DATA READ  
PREVIOUS READ RETRIES COUNT  
TOTAL AMOUNT OF DATA WRITTEN  
TOTAL WRITE RETRIES COUNT  
TOTAL AMOUNT OF DATA READ  
TOTAL READ RETRIES COUNT  
5
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
6
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
11  
12  
17  
18  
23  
24  
29  
30  
35  
36  
41  
42  
47  
48  
53  
54  
59  
60  
65  
66  
71  
72  
77  
LOAD COUNT  
78  
83  
TOTAL CHANGE PARTITION COUNT  
TOTAL PARTITION INITIALIZE COUNT  
84  
89  
The CURRENT AMOUNT OF DATA WRITTEN field indicates the amount of data physically written to the medium  
during this load of the medium. This value is expressed in increments of 1048576 bytes (e.g., a Value of one  
means 1048576 bytes, two means 2097152 bytes, etc).  
The CURRENT WRITE RETRY COUNT field indicates the total number of write retry was performed during this  
load of the medium. The exact definition of the error counters is not part of this standard. This counter should not  
be used to compare products because the products may define errors differently.  
12-6  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
12.APPENDIX E: Medium Auxiliary Memory Attribute  
The CURRENT AMOUNT OF DATA READ field indicates the amount of data physically read from the medium  
during this load of the medium. This value is expressed in increments of 1048576 bytes (e.g., a value of one  
means 1048576 bytes, two means 2097152 bytes, etc.).  
The CURRENT READ RETRIES COUNT field indicates the number of times a read retry was performed during  
this load of the medium. The exact definition of the error counters is not part of this standard. This counter should  
not be used to compare products because the products may define errors differently.  
The PREVIOUS AMOUNT OF DATA WRITTEN field indicates the amount of data physically written to the medium  
during the previous medium load. This value is expressed in increments of 1048576 bytes (e.g., a value of one  
means 1048576 bytes, two means 2097152 bytes, etc.).  
The PREVIOUS WRITE RETRY COUNT field indicates the total number of write retries during the previous  
medium load. The exact definition of the error counters is not part of this standard. This counter should not be  
used to compare products because the products may define errors differently.  
The PREVIOUS AMOUNT OF DATA READ field indicates the amount of data physically read from the medium  
during the previous medium load. This value is expressed in increments of 1048576 bytes (e.g., a value of one  
means 1048576 bytes, two means 2097152 bytes, etc.).  
The PREVIOUS READ RETRIES COUNT field indicates the number of times a read retry was performed during  
the previous medium load. The exact definition of the error counters is not part of this standard.  
This counter should not be used to compare products because the products may define errors differently.  
The TOTAL AMOUNT OF DATA WRITTEN field indicates the total amount of data physically written to the medium  
since the last medium format. This value accumulates over the life of the medium but it is reset to zero after a  
medium format. This value is expressed in increments of 1048576 bytes (e.g., a value of one means 1048576  
bytes, two means 2097152 bytes, etc.).  
The TOTAL WRITE RETRIES COUNT field indicates the total number of write retries since the last medium  
format. This count accumulates over the life of the medium but it is reset to zero after a medium format. The exact  
definition of the error counters is not part of this standard. This counter should not be used to compare products  
because the products may define errors differently.  
The TOTAL AMOUNT OF DATA READ field indicates the total amount of data physically read from the medium  
since the last medium format. This value accumulates over the life of the medium but it is reset to zero after a  
medium format. This value is expressed in increments of 1048576 bytes (e.g., a value of one means 1048576  
bytes, two means 2097152 bytes, etc.).  
The TOTAL READ RETRIES COUNT field indicates the number of times a read retry was performed since the last  
medium format. The exact definition of the error counters is not part of this standard. This counter should not be  
used to compare products because the products may define errors differently. This count accumulates over the life  
of the medium but it is reset to zero after a medium format.  
The LOAD COUNT field indicates the number of loads since the last medium format. This count accumulates over  
the life of the medium but it is reset to zero after a medium format.  
The TOTAL CHANGE PARTITION COUNT field indicates the number of times that switches between partitions  
have been performed on the medium. This count accumulates over the life of the medium but it is reset to zero  
after a medium format. This field is not supported and always will be set to ZERO.  
The TOTAL PARTITION INITIALIZE COUNT field indicates the number of times that any of the partitions on the  
medium have been erased. This count accumulates over the life of the medium but it is reset to zero after a  
medium format. This field is not supported and always will be set to ZERO.  
0341h PARTITION USAGE HISTORY: This attribute value provides statistical counters (Table 12-9) for the  
partition specified by the PARTITION NUMBER field in the CDB. If a field is not used, it will be set to ZERO.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
12-7  
12.APPENDIX E: Medium Auxiliary Memory Attribute  
Table 12-9: PARTITION USAGE HISTORY attribute format  
Bit  
Byte  
7
6
5
4
3
2
1
0
0
(MSB)  
CURRENT AMOUNT OF DATA WRITTEN  
CURRENT WRITE RETIES COUNT  
CURRENT AMOUNT OF DATA READ  
CURRENT READ RETRIES COUNT  
PREVIOUS AMOUNT OF DATA WRITTEN  
PREVIOUS WRITE RETRIES COUNT  
PREVIOUS AMOUNT OF DATA READ  
PREVIOUS READ RETRIES COUNT  
TOTAL AMOUNT OF DATA WRITTEN  
TOTAL WRITE RETRIES COUNT  
TOTAL AMOUNT OF DATA READ  
TOTAL READ RETRIES COUNT  
LOAD COUNT  
3
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
(LSB)  
4
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
(MSB)  
7
8
11  
12  
15  
16  
19  
20  
23  
24  
27  
28  
31  
32  
35  
36  
39  
40  
43  
44  
47  
48  
51  
52  
55  
56  
59  
CHANGE PARTITION COUNT  
PARTITION INITIALIZE COUNT  
The CHANGE PARTITION COUNT field indicates the number of times that switches to the partition specified by  
the PARTITION NUMBER field in the CDB have been performed on the medium. This count accumulates over the  
life of the medium but it is reset to zero after a medium format.  
The PARTITION INITIALIZE COUNT field indicates the number of times that the partition specified by the  
PARTITION NUMBER field in the CDB has been initialized. This count accumulates over the life of the medium but  
it is reset to zero after a medium format.  
12-8  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
12.APPENDIX E: Medium Auxiliary Memory Attribute  
12.4.4. Standard Medium Type Attributes  
Medium type attributes (Table 12-10) are hard coded into the medium auxiliary memory at manufacture time. All  
supported medium type attribute will have a status of read only.  
Table 12-10: Medium Common Attributes  
ID  
Attribute Name  
#Bytes  
Format  
ASCII  
ASCII  
Binary  
Binary  
ASCII  
Binary  
ASCII  
Binary  
Binary  
Binary  
0400h  
0401h  
0402h  
0403h  
0404h  
0405h  
0406h  
0407h  
0408h  
0409h  
040Ah – 07FFh  
MEDIUM MANUFACTURER  
MEDIUM SERIAL NUMBER  
MEDIUM LENGTH  
8
32  
4
4
8
1
8
8
1
MEDIUM WIDTH  
ASSIGNING ORGANIZATION  
MEDIUM DENSITY CODE  
MEDIUM MANUFACTURE DATE  
MAM CAPACITY  
MEDIUM TYPE  
MEDIUM TYPE INFORMATION  
Reserved  
2
0400h MEDIUM MANUFACTURER: This attribute value contains eight bytes of ACSII data identifying the vendor  
of the media.  
Note: It is intended that the MEDIUM MANUFACTURER attribute provide a unique vendor identification of the  
manufacturer of the media. In the absence of a formal registration procedure, T10 maintains a list of known vendor  
identification codes in use. Vendors are requested to voluntarily submit their identification codes to T10 to prevent  
duplication of codes.  
0402h MEDIUM LENGTH: This attribute value specifies the length of the medium in meters. A value of 00h  
specifies that the length of the medium is undefined.  
0403h MEDIUM WIDTH: This attribute value specifies the width of the medium supported by this density. This field  
has units of tenths of millimeters. The value in this field will be rounded up if the fractional value of the actual value  
is greater than or equal to 0.5. The MEDIUM WIDTH field may vary for a given density depending on the mounted  
medium. A value of 00h specifies the width of the medium is undefined.  
0404h ASSIGNING ORGANIZATION: This attribute value identifies the organization responsible for the  
specifications defining the values in the MEDIUM DENSITY CODE attribute. The ASSIGNING ORGANIZATION  
field willl contain a value listed in the vendor identification list.  
The MEDIUM SERIAL NUMBER identifies the manufacturer’s serial number for the medium.  
The MEDIUM DENSITY CODE is the same numeric DENSITY CODE as reported in the SCSI Mode Block  
Descriptor.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
12-9  
12.APPENDIX E: Medium Auxiliary Memory Attribute  
Note: The Formatted Density Code ID 0006h, which is in the Device Common Attribute section and the Medium  
Density Code ID 0405h, which is located in the Medium Common Attributes section, will need to be used in some  
cases in conjunction in determining the media format.  
0406h MEDIUM MANUFACTURE DATE: This attribute value identifies the date of manufacture of the medium.  
The format is YYYYMMDD.  
0407h MAM CAPACITY: This attribute value is the total capacity of the MAM, in bytes, at manufacture time. It  
does not indicate the free space of an unused medium auxiliary memory because some of the medium auxiliary  
memory space may be reserved for device-specific use making it inaccessible to the application client.  
0408h MEDIUM TYPE and 0409h MEDIUM TYPE INFORMATION: These attribute values give information about  
non-data media and other types of media. The MEDIUM TYPE INFORMATION attribute is interpreted according to  
the type of medium indicated by the MEDIUM TYPE (Table 12-11).  
Note: Depending of the hardware vendor, this attribute may not be hard coded into the MAM at manufacture time.  
Table 12-11: MEDIUM TYPE and MEDIUM TYPE INFORMATION attributes  
MEDIUM TYPE  
00h  
01h  
02h-7Fh  
80h  
81h-FFh  
Description  
MEDIUM TYPE INFORMATION  
Reserved  
Maximum number of cleaning cycles permitted  
Reserved  
Reserved  
Reserved  
Data medium  
Cleaning medium  
Reserved  
Write-once medium  
Reserved  
12.4.5. Standard Host Type Attributes  
Application clients may use the WRITE ATTRIBUTE and READ ATTRIBUTE commands to maintain the attributes  
shown in Table 12-12. All existent host type attributes will have a status of read/write.  
Table 12-12: Host Common Attributes:  
ID  
Attribute Name  
APPLICATION VENDOR  
APPLICATION NAME  
APPLICATION VERSION  
USER MEDIUM TEXT LABEL  
DATE & TIME LAST WRITTEN  
TEXT LOCALISATION IDENTIFIER  
BARCODE  
OWNING HOST TEXTUAL NAME  
MEDIA POOL  
PARTITION USER TEXT LABEL  
LOAD/UNLOAD AT PARTITION  
Reserved  
#Bytes  
8
32  
8
160  
12  
1
32  
80  
160  
16  
1
Format  
ASCII  
ASCII  
ASCII  
Text  
ASCII  
Binary  
ASCII  
TEXT  
TEXT  
ASCII  
Binary  
0800h  
0801h  
0802h  
0803h  
0804h  
0805h  
0806h  
0807h  
0808h  
0809h  
080Ah  
080Bh – BFFh  
0800h APPLICATION VENDOR: This attribute value contains eight bytes of ASCII data identifying the  
manufacturer of the application client (e.g. class driver or backup program) that most recently sent a WRITE  
ATTRIBUTE command to the drive while this medium auxiliary memory was accessible.  
12-10  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
12.APPENDIX E: Medium Auxiliary Memory Attribute  
Note: It is intended that this field provide a unique vendor identification of the vendor who wrote the Host Common  
attributes. In the absence of a formal registration procedure, T10 maintains a list of vendor identification codes in  
use. Vendors are requested to voluntarily submit their identification codes to T10 to prevent duplication of codes.  
0801h APPLICATION NAME: This attribute value contains the name of the application client.  
0802h APPLICATION VERSION: This attribute value contains the version of the application client.  
0803h USER MEDIUM TEXT LABEL: This attribute value is the user level identifier for the medium.  
0804h DATE & TIME LAST WRITTEN: This attribute value contains when the application client last wrote to the  
MAM. The format for the string is YYYYMMDDHHMM using a 24-hour time format  
Note: The application must update the “Date and Time Last Written” field any time the host attributes contents are  
modified.  
0805h TEXT LOCALISATION IDENTIFIER: This attribute value defines the character set used for attributes with a  
text format (Table 12-13).  
Table 12-13: TEXT LOCALISATION IDENTIFIER  
Value  
00h  
01h  
02h  
03h  
04h  
05h  
06h  
07h  
08h  
09h  
0Ah  
0Bh – 7Fh  
80h  
Meaning  
No code specified (ASCII)  
ISO/IEC 8859-1 (Europe, Latin America)  
ISO/IEC 8859-2 (Eastern Europe)  
ISO/IEC 8859-3 (SE Europe/miscellaneous)  
ISO/IEC 8859-4 (Scandinavia/Baltic)  
ISO/IEC 8859-5 (Cyrillic)  
ISO/IEC 8859-6 (Arabic)  
ISO/IEC 8859-7 (Greek)  
ISO/IEC 8859-8 (Hebrew)  
ISO/IEC 8859-9 (Latin 5)  
ISO/IEC 8859-10 (Latin 6)  
Reserved  
ISO/IEC 10646 (UCS-2BE)  
ISO/IEC 10646–1 (UTF-8)  
Reserved  
81h  
82h – FFH  
0806h BARCODE: This attribute value is the contents of a barcode associated with the medium in the MAM.  
0807h OWNING HOST TEXTUAL NAME: This attribute value indicates the host from which that USER MEDIUM  
TEXT LABEL originates.  
0808h MEDIA POOL: This attribute value indicates the media pool to which this medium belongs.  
0809h PARTITION USER TEXT LABEL: This attribute value is a user level identifier for the partition specified by  
the PARTITION NUMBER field in the CDB.  
080Ah LOAD/UNLOAD AT PARTITION: This attribute value indicates whether the media can be loaded or  
unloaded at the Partition specified by the PARTITION NUMBER field in the CDB. If loads and unloads are enabled  
for the specified partition, the value of this parameter will be one. If loads/unloads are not enabled for the specified  
partition, the value of this parameter will be zero. All other attribute values are reserved. If LOAD/UNLOAD AT  
PARTITION is disabled, then loads and unloads are performed at the beginning of the media instead of at the  
specified partition. If this attribute is in the nonexistent state then the default action will be to load/unload at the  
beginning of media. This field is not supported.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
12-11  
12.APPENDIX E: Medium Auxiliary Memory Attribute  
This page intentionally left blank.  
12-12  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
13.Appendix F: AIT based WORM system  
13. APPENDIX F: AIT based WORM system  
13.1. Important Notice  
(1) AIT WORM cartridges come equipped with Remote MIC.  
(2) A new AIT WORM cartridge can be initialized to use either AIT native mode.  
(3) WORM features are supported in AIT tape drives with firmware revision level 0103 or later.  
13.2. Write-Protected (WP) Bit in Mode Sense Data  
If the AIT-5 WORM cartridge that the write-protected tab set to “Rec” is inserted, the WP bit is not used in WORM  
mode. The WP bit will be set to ZERO.  
If the AIT-5 WORM cartridge the write-protected tab set to “Safe” is inserted, the SDX-1100V can not write to the  
tape. The WP bit will be set to ONE.  
When the AIT-3 WORM or AIT-4 WORM cartridge is inserted, the SDX-1100V can not write to these tapes. The  
WP bit will be set to ONE.  
13.3. How to detect a WORM cartridge.  
The WORM bit of AIT Device Configuration Page (31h) is used to indicate the presence of a WORM media.  
Page 31h: AIT Device Configuration Page  
Bit  
7
6
5
4
3
2
1
0
Byte  
0
Reserved  
Page Code (31h)  
1
2
3
4
Page Length (8)  
ULP PRT  
SPAN (0Ah)  
AIT  
DEV  
ABS  
PNJ  
SYSLOG  
MIC  
WORM  
Reserved  
WORM  
Capable  
5
Reserved  
Reserved  
6
7
8
9
Reserved  
Reserved  
Reserved  
13.4. How to initialize a WORM cartridge.  
A new WORM cartridge can be initialized in two ways:  
1. Mode Select Operation  
2. Write Operation  
Note: when using Write Operation (option 2), a new WORM cartridge will be initialized as one partition AIT native  
mode.  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
13-1  
13.Appendix F: AIT based WORM system  
How to initialize a WORM cartridge to AIT Native mode.  
1Partition  
Mode Sense (Page 31h)  
Mode Select (Page 31h)  
AIT=1, DEVICE=1, ABS=1, SysLogAlive=11, Span=0Ah  
Mode Select (Page 11h)  
Set IDP bit to 1. Additional Partition=0.  
13.5. How to handle the WORM cartridge in the drive.  
1. DATA READ: There is no restriction when reading data in WORM mode.  
2. DATA WRITE: Any attempt to overwrite existing data will be rejected with a Check Condition status and  
sense data.  
Write Projected Error: 07-27-00-07 (Sense Key, ASC, ASCQ, Run-time-error)  
Append Position Error: 03-27-04-f7  
The AIT WORM drive will allow write operations when:  
(1) Append Write Operation is allowed only at End-Of-Data (EOD) area. Prior to an Append Write Operation,  
several commands can be used to position the drive at EOD area:  
Space to EOD (space code 3)  
Space to last record (could be a block, File-mark, Set-mark)  
Locate to last block  
Read until EOD  
For example:  
Space EOD  
Write  
Write End  
No  
Yes  
END  
13-2  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
14.Appendix G: CD-ROM Device Emulation for Disaster Recovery  
14. APPENDIX G: CD-ROM Device Emulation for  
Disaster Recovery  
14.1. Overview  
This chapter will outline the Disaster Recovery Specifications for Sony AIT drive and autoloader. While in Disaster  
Recovery mode, the drive behaves as a bootable CD-ROM device. Using the DR tape image, users will be able to  
do a complete restore of the system.  
14.2. Creating Disaster Recovery Tape  
The Disaster Recovery tape must have the CD-ROM image of the operating system written first on the tape. This  
image is formatted in El Torito CD-ROM Boot Specification.  
Disaster Recovery Tape can be created using Veritas BackupExec Software. Please follow instructions of Veritas  
BackupExec to create the DR tape. After the tape has been created, the tape must be write-protected to be  
considered DR tape.  
14.3. Configuring The Drive For Disaster Recovery Operation  
To enter DR mode, the tape drive needs to be configured with the following steps:  
1. Turn on the DIP Switch 1 [DR Mode Enable] of the drive.  
2. Insert a write-protected DR tape and wait for the drive to complete the loading sequence.  
3. Observe the simultaneous flashing all LED. This is the DR standby mode. The drive will remain in this  
mode for a period of 15 seconds. Powering down the drive during this 15 seconds window will trigger the  
DR mode. The drive will exit the DR standby mode after 15 seconds and resume normal mode of  
operation. A SCSI reset will force the drive to exit the DR standby mode and service the SCSI reset.  
4. Upon power up, the drive will enter the DR mode. Observe the simultaneous flashing LEDs of TAPE  
MORTION and CLEANING REQUEST. While in DR mode, a SCSI RESET will be treated as soft reset  
and will not take the drive out of DR mode.  
Also, the drive will enter DR mode upon receiving a Mode Select command with Page Code 0x3C.  
14.4. Exiting DR Mode  
Ejecting the media via the front panel button or a SCSI UNLOAD command will exit the DR mode and restore the  
drive to normal operation. A SCSI Mode Select command with Page Code 0x3C and DREnable bit of zero will also  
exit the drive out of DR mode. On the autoloader, the DR mode indication on the 4th line of the LCD will disappear  
once the drive exits from DR mode.  
14.5. Supported CD-ROM DR Command Set  
14.5.1. Inquiry (12h)  
5.1.1. Peripheral Device Type = 0x05 (CD-ROM)  
5.1.2. Byte 43 = 0x24 (ASCII “$”)  
5.1.3. Byte 44-48 = “DR-10”  
14.5.2. Read 10 (28h)  
This command shall only be supported in DR mode. Execution of this command is in effect a translation of a  
LOCATE command and READ 6 (0x08) command executing in sequence.  
14.5.3. Read Capacity (0x25)  
This command shall only be supported in DR mode.  
5.3.1.  
5.3.2.  
Returned LBA (Capacity) = 0004B000h (~640 Mbytes)  
Block Length = 00000800h (2048 Bytes)  
SONY AIT-5 drive SDX-1100V series Ver.1.0  
14-1  
14.Appendix G: CD-ROM Device Emulation for Disaster Recovery  
14.5.4. Read TOC (0x43)  
This command shall only be supported in DR mode.  
5.4.1.  
Returned Data (20 bytes)  
00 12 01 01 00 14 01 00 00 00 00 00 00 14 AA 00 00 04 B0 00  
14.5.5. Mode Sense/Select Page Code 0x3C  
Table 14-1: DR Mode Entry/Exit Page  
7
6
5
4
3
2
1
0
Bit  
Byte  
0
Reserved Reserved  
Page Code = 3Ch  
1
2
3
4
5
Page Length = 04h  
Reserved  
DREnable  
Reserved  
Reserved  
Reserved  
DREnable: This bit reflects the status of the DR mode. When the drive enters DR mode, DREnable bit will be set  
to 1. This bit shall be reset to zero when the drive exits the DR mode. A Mode Select of Page Code 0x3C with  
setting of DREnable bit will force the drive to enter DR mode. With DREnable bit set to zero, the drive will exit the  
DR mode. Setting this bit to 1 when the tape is not write-protected shall be rejected with a Check Condition of  
Illegal Request (0x05) and ASC of 26h and ASCQ of 02h.  
14.6. Reset Handling  
While in DR mode, a SCSI reset shall not take the drive out of DR mode. A powered cycle will take the drive out  
of DR mode and return the drive to normal operation.  
14-2  
SONY AIT-5 drive SDX-1100V series Ver.1.0  

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