MAA3182 SERIES
MAB3091, MAB3045 SERIES
MAC3091, MAC3045 SERIES
DISK DRIVES
PRODUCT MANUAL
C141-E035-03EN
FOR SAFE OPERATION
Handling of This manual
This manual contains important information for using this product. Read thoroughly before
using the product. Use this product only after thoroughly reading and understanding
especially the section “Important Alert Items” in this manual. Keep this manual handy, and
keep it carefully.
FUJITSU makes every effort to prevent users and bystanders from being injured or from
suffering damange to their property. Use the product according to this manual.
Functional Limitations
There may be certain functional limitations concerning the specifications and functions of the
products covered by this manual depending on the equipment version, especially concerning
the following functions.
Versions in which there functions can be used will be communicated through
“ENGINEERING CHANGE REQUEST/NOTICE”, issued by Fujitsu.
Function
Equipment Version Which Supports These Functions
Equipment EPROM Standard INQUIRY Data Product
Version No. Version Revision (ASCII)
No.
READ RAM Command
WRITE RAM Command
These commands cannot be used in the current version.
(Proceed to the Copyright Page)
C141-E035-03EN
iii
Related Standards
Specifications and functions of products covered by this manual comply with the following
standards.
Standard (Text) No.
Name
Enacting Organization
American National
ANSI X3.131-1986
American National Standard for
Information Systems—Small Computer Standards Institute
System Interface (SCSI)
(ANSI)
ANSI X3.131-1994
X3T9.2/85-52 Rev 4.B
X3T9.2 855D Rev 12
X3T10/10T1D Rev 6
American National Standard for
Information Systems—Small Computer Standards Institute
System Interface - 2(SCSI-2) (ANSI)
American National
COMMON COMMAND SET (CCS) American National
of the Small Computer
System Interface (SCSI)
Standards Institute
(ANSI)
WORKING DRAFT Information
Technology SCSI-3 Parallel Interface Standards Institute
(ANSI)
American National
Dfaft proposed
American National
Standards Institute
(ANSI)
American National Standard for
Information Systems—SCSI-3
Fast-20 Parallel Interface
(Fast 20-SCSI)
All Right Reserved, Copyright © 1997, 1998 Fujitsu Limited
iv
C141-E035-03EN
PREFACE
This manual describes the MAA3182xx (hereafter, MAA31xxxx), MAB3091xx, MAB3045xx
(hereafter, MAB30xxxx), MAC3091xx, MAC3045xx (hereafter, MAC30xxxx) series 3.5-inch fixed
disk drives with an embedded SCSI controller.
This manual details the specifications and functions of the above disk drive, and gives the requirements
and procedures for installing it into a host computer system.
This manual is written for users who have a basic understanding of fixed disk drives and their use in
computer systems. The MANUAL ORGANIZATION section describes organization and scope of this
manual. The need arises, use the other manuals.
Chapter 1
GENERAL DESCRIPTION
This chapter introduces the MAA31xxxx, MAB30xxxx and MAC30xxxx series disk drives and
discusses their standard features, hardware, and system configuration.
Chapter 2
SPECIFICATIONS
This chapter gives detailed specifications of the MAA31xxxx, MAB30xxxx and MAC30xxxx series
disk drives and their installation environment.
Chapter 3
DATA FORMAT
This chapter describes the data structure of the disk, the address method, and what to do about media
defects.
Chapter 4
INSTALLATION REQUIREMENTS
This chapter describes the basic physical and electrical requirements for installing MAA31xxxx,
MAB30xxxx and MAC30xxxx series disk drives.
Chapter 5
INSTALLATION
This chapter explains how to install MAA31xxxx, MAB30xxxx and MAC30xxxx series disk drives. It
includes the notice and procedures for setting device number and operation modes, mounting the disk
drive, connecting the cables, and confirming drive operation.
Chapter 6
DIAGNOSIS and MAINTENANCE
This chapter describes the automatic diagnosis, and maintenance of the MAA31xxxx, MAB30xxxx
and MAC30xxxx series disk drive.
APPENDIX
A to E
The appendixes give supplementary information, including the locations of mounting setting terminals
and connectors, a list of setting items, the signal assignments of interface connectors, lists of model
names and product numbers, and SCSI interface functions.
The model numbers have a suffix that describes the electrical requirements of the SCSI interface
between host system and disk drive, the data formatted at the factory and device type.
C141-E035-03EN
v
CONVENTIONS
This manual uses the following conventions for alerts to prevent physical or property damages to users
or by standards.
DANGER
DANGER indicates that personal injury will occur if the user does not perform the procedure
correctly.
WARNING
WARNING indicates that personal injury could occur if the user does not perform the procedure
correctly.
CAUTION
CAUTION indicates that either minor or moderate personal injury may occur if the user does not
perform the procedure correctly.
NOTICE
NOTICE indicates that inconvenience to the user such as damages to the product, equipment, data,
and/or other property may occur if the user does not pay attention or perform the procedure correctly.
IMPORTANT
IMPORTANT indicates information that the helps the user use the product more effectively.
Indicates
This manual indicates;
Decimal number: Indicates as it is.
Hexadecimal number: Indicates as X’17B9’, 17B9h, or 17B9H
Binary number: Indicates as “010”
vi
C141-E035-03EN
DISCLAIMER
Failure of the MAA31xxxx, MAB30xxxx and MAC30xxxx series intelligent disk drive is defined as a
failure requiring adjustments, repairs, or replacement. Fujitsu is not responsible for drive failures
caused by misuse by the user, poor environmental conditions, power trouble, host problems, cable
failures, or any failure not caused by the drive itself.
The suffix of the model name of the disk drive varies depending on the electrical requirements,
capacity, and data format at factory shipment of the SCSI, i.e., the interface for connecting the three
device types or host system and the disk drives (Note 1). However, in this manual, the typical model
names (Note 2) are used unless otherwise noted. These disk drives may be called intelligent disk
drives (IDD), drives, or devices in this manual.
Note 1:
Model names
M AA 3 182 SC
Interface types
SP: Single-Ended, 16-bit SCSI
SC: Single-Ended, 16-bit SCSI SCA2 connector
Formatted capacity (100 MB units)
Disk size
Type
3: 3.5 inch
AA: 1.6-inch height (7,200rpm)
AB: 1-inch height (7,200rpm)
AC: 1-inch height (10,033rpm)
Note 2:
Type model name
Type model
name
Model name
MAA3182
MAB3091
MAB3045
MAC3091
MAC3045
MAA3182SP, MAA3182SC
MAB3091SP, MAB3091SC
MAB3045SP, MAB3045SC
MAC3091SP, MAC3091SC
MAC3045SP, MAC3045SC
C141-E035-03EN
vii
MANUAL ORGANIZATION
PRODUCT
MANUAL
1. General Description
2. Specifications
3. Data Format
(This manual)
4. Installation Requirements
5. Installation
6. Diagnostics and Maintenance
SCSI Physical
Interface
1. SCSI Bus
2. SCSI Message
Specifications
3. SCSI Bus Error Recovery Processing
SCSI Logical
Interface
Specifications
1. Command Processing
2. Data Buffer Management
3. Command Specification
4. Sense Data and error Recovery Procedure
5. Disk Medium Management
Maintenance
Manual
1. Specifications and Equipment Configuration
2. Maintenance and Diagnostic
3. Error Analysis
4. Removal and Replacement Procedures
5. Principle of Operation
viii
C141-E035-03EN
CONTENTS
page
CHAPTER 1 GENERAL DESCRIPTION .......................................................................... 1-1
1.1
1.2
1.3
Standard Features ........................................................................................................... 1-2
Hardware Structure......................................................................................................... 1-5
System Configuration..................................................................................................... 1-10
CHAPTER 2 SPECIFICATIONS......................................................................................... 2-1
2.1 Hardware Specifications................................................................................................. 2-1
2.1.1 Model name and part number......................................................................................... 2-1
2.1.2 Function specifications................................................................................................... 2-2
2.1.3 Environmental specifications.......................................................................................... 2-4
2.1.4 Error rate......................................................................................................................... 2-5
2.1.5 Reliability....................................................................................................................... 2-5
2.2
SCSI Function Specifications......................................................................................... 2-7
CHAPTER 3 DATA FORMAT ............................................................................................ 3-1
3.1 Data Space...................................................................................................................... 3-1
3.1.1 Cylinder configuration.................................................................................................... 3-1
3.1.2 Alternate spare area ........................................................................................................ 3-5
3.1.3 Track format ................................................................................................................... 3-6
3.1.4 Sector format .................................................................................................................. 3-8
3.1.5 Format capacity .............................................................................................................. 3-10
3.2
3.3
Logical Data Block Addressing...................................................................................... 3-11
Defect Management........................................................................................................ 3-12
3.3.1 Defect list ....................................................................................................................... 3-12
3.3.2 Alternate block allocation............................................................................................... 3-12
CHAPTER 4 INSTALLATION REQUIREMENTS .......................................................... 4-1
4.1
Mounting Requirements................................................................................................. 4-1
4.1.1 External dimensions ....................................................................................................... 4-1
4.1.2 Mounting........................................................................................................................ 4-6
4.1.3 Notes on mounting ......................................................................................................... 4-6
4.2
Power Supply Requirements .......................................................................................... 4-11
C141-E035-03EN
ix
4.3
Connection Requirements .............................................................................................. 4-14
4.3.1 Single-ended 16-bit SCSI model (MAA31xxSP, MAB30xxSP, MAC30xxSP) ............ 4-14
4.3.2 SCA2 type SCSI model (MAA31xxSC, MAB30xxSC, MAC30xxSC)......................... 4-22
4.3.3 Cable connector requirements ........................................................................................ 4-24
4.3.4 External operator panel................................................................................................... 4-28
CHAPTER 5 INSTALLATION............................................................................................ 5-1
5.1
5.2
5.3
Notes on Handling Drives .............................................................................................. 5-1
Connections.................................................................................................................... 5-3
Setting Terminals............................................................................................................ 5-5
5.3.1 SCSI ID setting............................................................................................................... 5-7
5.3.2 Each mode setting .......................................................................................................... 5-8
5.3.3 Write protect, terminating resistor setting....................................................................... 5-9
5.3.4 Mode settings ................................................................................................................. 5-10
5.4
Mounting Drives ............................................................................................................ 5-11
5.4.1 Check before mounting .................................................................................................. 5-11
5.4.2 Mounting procedures...................................................................................................... 5-11
5.5
5.6
Connecting Cables.......................................................................................................... 5-12
Confirming Operations after Installation and Preparation for use .................................. 5-13
5.6.1 Confirming initial operations.......................................................................................... 5-13
5.6.2 Checking SCSI connection............................................................................................. 5-15
5.6.3 Formatting ...................................................................................................................... 5-18
5.6.4 Setting parameters .......................................................................................................... 5-20
5.7
Dismounting Drives ....................................................................................................... 5-24
CHAPTER 6 DIAGNOSTICS AND MAINTENANCE...................................................... 6-1
6.1 Diagnostics..................................................................................................................... 6-1
6.1.1 Self-diagnostics .............................................................................................................. 6-1
6.1.2 Test programs................................................................................................................. 6-4
6.2
Maintenance Information ............................................................................................... 6-5
6.2.1 Maintenance requirements.............................................................................................. 6-5
6.2.2 Revision numbers........................................................................................................... 6-7
APPENDIX A LOCATIONS OF CONNECTORS, SETTING TERMINALS, AND
TERMINATING RESISTORS...................................................................... A-1
x
C141-E035-03EN
A.1
A.2
Locations of Connectors and Setting Terminals
(MAx3xxxSC: SCA2 type 16-bit SCSI)......................................................................... A-2
Locations of Connectors and Setting Terminals
(MAx3xxxSP: single-ended type 16-bit SCSI)............................................................... A-3
APPENDIX B SETTING TERMINALS................................................................................ B-1
B.1 Setting Terminals (MAx3xxxSP: Single-ended 16-bit SCSI)......................................... B-2
APPENDIX C CONNECTOR SIGNAL ALLOCATION .................................................... C-1
C.1
C.2
SCSI Connector Signal Allocation: SCA2 type 16-bit SCSI......................................... C-2
SCSI Connector Signal Allocation: Single-ended type 16-bit SCSI.............................. C-3
APPENDIX D MODEL NAMES AND PRODUCT NUMBERS ......................................... D-1
D.1 Model Names and Product Numbers.............................................................................. D-2
APPENDIX E SCSI INTERFACE FUNCTIONS ................................................................. E-1
E.1 SCSI interface function specifications............................................................................ E-2
Index............................................................................................................................................ IN-1
C141-E035-03EN
xi
FIGURES
page
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
4.14
4.15
4.16
MAA31xxSC outer view................................................................................................ 1-5
MAA31xxSP outer view ................................................................................................ 1-6
MAB30xxSC outer view ................................................................................................ 1-6
MAB30xxSP outer view................................................................................................. 1-7
MAC30xxSC outer view ................................................................................................ 1-7
MAC30xxSP outer view................................................................................................. 1-7
Disk/head configuration ................................................................................................. 1-8
System configuration...................................................................................................... 1-10
Cylinder configuration.................................................................................................... 3-2
Spare area in cylinders.................................................................................................... 3-5
Alternate cylinder ........................................................................................................... 3-5
Track format ................................................................................................................... 3-6
Track skew/cylinder skew .............................................................................................. 3-7
Sector format .................................................................................................................. 3-8
Alternate block allocation by FORMAT UNIT command ............................................. 3-14
Alternate block allocation by REASSIGN BLOCKS command..................................... 3-15
External dimensions (MAA31xxSC).............................................................................. 4-2
External dimensions (MAA31xxSP) .............................................................................. 4-3
External dimensions (MAB30xxSC, MAC30xxSC) ...................................................... 4-4
External dimensions (MAB30xxSP, MAC30xxSP)....................................................... 4-5
IDD orientation............................................................................................................... 4-6
Mounting frame structure ............................................................................................... 4-7
Limitation of side-mounting........................................................................................... 4-7
Surface temperature measurement points (MAA31xxxx/MAB30xxxx/MAC30xxxx) .. 4-8
Service clearance area..................................................................................................... 4-9
Air pressure adjustment hole .......................................................................................... 4-10
Current waveform (+12 VDC)........................................................................................ 4-11
Power on/off sequence (1).............................................................................................. 4-11
Power on/off sequence (2).............................................................................................. 4-12
Power on/off sequence (3).............................................................................................. 4-12
AC noise filter (recommended) ...................................................................................... 4-13
Connectors and terminals location (single-ended 16-bit SCSI) ...................................... 4-14
xii
C141-E035-03EN
4.17
4.18
4.19
4.20
4.21
4.22
4.23
4.24
4.25
4.26
4.27
4.28
5.1
16-bit SCSI interface connector...................................................................................... 4-15
Power supply connector (16-bit SCSI model) ................................................................ 4-15
External operator panel connector (CN1) ....................................................................... 4-16
External operator panel connector (CN7) ....................................................................... 4-17
16-bit SCSI ID external input......................................................................................... 4-18
Output signal for external LED ...................................................................................... 4-19
Cables connection (16-bit SCSI model) ......................................................................... 4-21
Connectors and terminals location of SCA2 type SCSI model....................................... 4-22
SCA2 type SCSI connector ............................................................................................ 4-23
SCSI cable connector...................................................................................................... 4-25
SCSI cable termination................................................................................................... 4-27
External operator panel circuit example (MAx3xxxSP) ................................................. 4-28
SCSI bus connections..................................................................................................... 5-3
MAx3xxxSP setting terminals position.......................................................................... 5-5
Setting terminals (MAx3xxxSP)..................................................................................... 5-6
Checking the SCSI connection (A)................................................................................. 5-16
Checking the SCSI connection (B)................................................................................. 5-17
Revision label................................................................................................................. 6-7
Indicating revision numbers ........................................................................................... 6-8
Locations of connectors and setting terminals
5.2
5.3
5.4
5.5
6.1
6.2
A.1
(MAx3xxxSC, SCA2 type 16-bit SCSI)............................................................................ A-2
Locations of connectors and setting terminals
A.2
(MAx3xxxSP, single-ended type 16-bit SCSI) .................................................................. A-3
C141-E035-03EN
xiii
TABLES
page
2.1
2.2
2.3
3.1
3.2
3.3
3.4
4.1
4.2
4.3
4.4
4.5
5.1
5.2
5.3
5.4
5.5
Function specifications................................................................................................... 2-2
Environmental/power requirements................................................................................ 2-4
SCSI function specifications........................................................................................... 2-7
Zone layout and track capacity (MAA31xxxx) .............................................................. 3-3
Zone layout and track capacity (MAB30xxxx) .............................................................. 3-3
Zone layout and track capacity (MAC30xxxx) .............................................................. 3-3
Format capacity .............................................................................................................. 3-10
Surface temperature check point..................................................................................... 4-8
External inputs for operating terminating resistor (16-bit single-ended type) ................ 4-20
Recommended components for connection.................................................................... 4-24
Total cable length of SCSI cable .................................................................................... 4-26
SCSI cable requirements................................................................................................. 4-26
SCSI ID setting (single-ended 16-bit SCSI model: MAx3xxxSP).................................. 5-7
Setting SCSI terminal power supply (single-ended 16-bit SCSI model: MAx3xxxSP) . 5-8
Motor start mode setting (single-ended 16-bit SCSI model: MAx3xxxSP) ................... 5-8
Write protect setting (single-ended 16-bit SCSI model: MAx3xxxSP) .......................... 5-9
Setting of connection of terminating resistor on SCSI interface
(single-ended 16-bit SCSI model: MAx3xxxSP) ........................................................... 5-9
Default mode settings (by CHANGE DEFINITION command)..................................... 5-10
Setting check list (MAx3xxxSP) .................................................................................... 5-11
Self-diagnostic functions ................................................................................................ 6-1
Setting terminal: CN6 (MAx3xxxSP)............................................................................ B-2
Setting terminal: CN7 (MAx3xxxSP)............................................................................ B-3
SCSI connector (SCA2 type, 16-bit SCSI): CN1........................................................... C-2
SCSI connector (single-ended type 16-bit SCSI): CN1................................................. C-3
MAA, MAB and MAC series model names and product numbers ................................ D-2
SCSI interface function specifications............................................................................ E-2
5.6
5.7
6.1
B.1
B.2
C.1
C.2
D.1
E.1
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C141-E035-03EN
CHAPTER 1
GENERAL DESCRIPTION
1.1 Standard Features
1.2 Hardware Structure
1.3 System Configuration
This chapter describes the feature and configuration of the intelligent disk drives (IDD).
IDDs are high performance large capacity 3.5-inch fixed disk drives with an embedded SCSI
controller.
The interface between the IDD and host system is based on SCSI (Small Computer System Interface)
standard [ANSI X3.131 - 1986: Small Computer System Interface (SCSI), ANSI X3.131-1994: Small
Computer System Interface - 2 (SCSI-2)].
The flexibility and expandability of the SCSI, as well as the powerful command set of the IDD, allow
the user to construct a high-performance reliable disk subsystem with large storage capacity.
C141-E035-01EN
1 - 1
1.1
Standard Features
(1)
Compactness
Since the SCSI controller circuit is embedded in the standard 3.5-inch fixed disk drive form
factor, the IDD is extremely compact. The IDD can be connected directly to the SCSI bus of
the host system .
(2)
(3)
(4)
SCSI/CCS standard
The IDD provides not only SCSI basic functions but also the following features:
·
·
·
·
Arbitration
Disconnection/reselection
Data bus parity
Command set which meets the logical specification of the SCSI CCS (Common
Command Set for Direct Access Device) requirements (Rev. 4.B)
The SCSI commands can manipulate data through logical block addressing regardless of the
physical characteristics of the disk drive. This allows software to accommodate future
expansion of system functions.
8-bit SCSI/16-bit SCSI
The IDD has 16-bit data width (16-bit SCSI), which have the wide transfer function suitable
for SCSI-3.
·
·
8-bit SCSI: Up to eight SCSI devices can be connected on the same SCSI bus.
16-bit SCSI: Up to 16 SCSI devices can be connected on the same SCSI bus.
For the ultra SCSI model, number of connectable SCSI devices on the same SCSI bus is varied
as follows.
·
·
Up to 4 SCSI devices having capacitance of 25 pF: Cable length of up to 3.0 m.
5 to 8 SCSI devices having capacitance of 25 pF: Cable length of up to 1.5 m
High speed data transfer
·
·
8-bit SCSI:
The data transfer rate on the 8-bit SCSI bus is 6 MB/s maximum in
asynchronous mode, 20 MB/s in synchronous mode.
16-bit SCSI: The data transfer rate on the 16-bit SCSI bus is 12 MB/s maximum in
asynchronous mode, 40 MB/s in synchronous mode.
Such a high data transfer rate on the SCSI bus can be useful with the large capacity buffer in
the IDD.
1 - 2
C141-E035-02EN
Note:
The maximum data transfer rate in asynchronous mode may be limited by the response
time of initiator and the length of SCSI bus length. The maximum data transfer rate in
synchronous mode on the single-ended SCSI bus may be limited by the cable length,
transmission characteristics of the SCSI bus and the connected SCSI device number.
(5)
Continuous block processing
The addressing method of data blocks is logical block address. The initiator can access data
by specifying block number in a logically continuous data space without concerning the
physical structure of the track or cylinder boundaries.
The continuous processing up to [64K-1] blocks in a command can be achieved, and IDD can
perform continuous read/write operation when processing data blocks on several tracks or cylinder.
(6)
512 KB programmable multi-segment data buffer
Data is transferred between SCSI bus and disk media through the embedded 512 KB data
buffer in the IDD. This buffer can be divided into maximum 16 areas. This feature provides
the suitable usage environment for users.
Since the initiator can control the disconnect/reconnect timing on the SCSI bus by specifying
the condition of stored data to the data buffer or empty condition of the data buffer, the
initiator can perform the effective input/output operations with utilizing high data transfer
capability of the SCSI bus regardless of actual data transfer rate of the disk drive.
(7)
(8)
(9)
Read-ahead cache feature
After executing the READ command, the IDD reads automatically and stores (prefetches) the
subsequent data blocks into the data buffer (Read-ahead caching).
The high speed sequential data access can be achieved by transferring the data from the data buffer
without reaccessing the disk in case the subsequent command requests the prefetched data blocks.
Command queuing feature
The IDD can queue maximum 128 commands, and optimizes the issuing order of queued
commands by the reordering function. This feature realizes the high speed processing.
Recordering algorithm is adopted to prevent a specific command from staying in a queue for
more than 3 seconds.
Reserve and release functions
The IDD can be accessed exclusively in the multi-host or multi-initiator environment by using
the reserve and release functions.
C141-E035-03EN
1 - 3
(10)
Error recovery
The IDD can try to recover from errors in SCSI bus or the disk drive using its powerful retry
processing. If a recoverable data check occurs, error-free data can be transferred to the
initiator after being corrected in the data buffer. The initiator software is released from the
complicated error recover processing by these error recovery functions of the IDD.
(11)
(12)
(13)
Automatic alternate block reassignment
If a defective data block is detected during read, the IDD can automatically reassign its
alternate data block.
Programmable data block length
Data can be accessed in fixed-block length units. The data block length is programmable, and
can at initializing with a multiple of two for the 512 to 528 bytes.
Defective block slipping
A logical data block can be reallocated in a physical sequence by slipping the defective data
block at formatting. This results in high speed contiguous data block processing without a
revolution delay due to defective data block.
(14)
(15)
High speed positioning
A rotary voice coil motor achieves fast positioning.
Large capacity
A large capacity can be obtained from 3.5-inch disk drives by dividing all cylinders into
several partitions and changing the recording density on each partition (constant density
recording). The disk subsystem with large capacity can be constructed in the good space
efficiency.
(16)
(17)
Start/Stop of spindle motor
Using the SCSI command, the host system can start and stop the spindle motor.
Diagnosis
The IDD has a diagnostic capability which checks internal controller functions and drive
operations to facilitate testing and repair.
1 - 4
C141-E035-03EN
(18)
(19)
(20)
1.2
Low power consumption
By using highly integrated LSI components, the power consumption of the IDD is very low,
and this enables the unit to be used in wide range of environmental conditions.
Low noise and low vibration
Approx. 4.2 bels for the IDD. This makes it ideal for office use. The IDD has rubber
vibration isolators, which minimize the transfer of vibration.
Microcode downloading
The IDD implements the microcode download feature.
maintainability of the IDD and function enhancing.
This feature achieves easy
Hardware Structure
An outer view of the IDD is given in Figures 1.1 to 1.4. The IDD is composed of the disk,
head, spindle motor, hermetically sealed disk enclosure (DE) with actuator and air circulation
filter, as well as read/write pre-amp with the print card unit (PCA) of the controller.
Figure 1.1 MAA31xxSC outer view
C141-E035-02EN
1 - 5
Figure 1.2 MAA31xxSP outer view
Figure 1.3 MAB30xxSC outer view
1 - 6
C141-E035-02EN
Figure 1.4 MAB30xxSP outer view
Figure 1.5 MAC30xxSC outer view
Figure 1.6 MAC30xxSP outer view
C141-E035-03EN
1 - 7
(1)
Disks
The disks have an outer diameter of 95 mm (3.74 inch) and inner diameter of 25 mm (0.98
inch). The disks are good for at least 10,000 contact starts and stops. Each model contains
following number of disks.
MAA3182:10
MAB3091, MAC3091:5
MAB3045, MAC3045:3
(2)
Heads
The MR (Magnet - Resistive) of the CSS (contact start/stop) type heads are in contact with the
disks when the disks are not rotating, and automatically float when the rotation is started.
Figure 1.7 shows the configuration of disks and heads
MAA3182
MAB3091, MAC3091
MAB3045, MAC3045
0
1
0
1
0
1
2
3
4
5
6
2
3
4
5
6
7
8
9
2
3
4
7
12
13
14
15
16
17
18
Head No.
Figure 1.7 Disk/head configuration
(3)
Spindle motor
The disks are rotated by a direct-drive hall-less DC motor. The motor speed is controlled by a
feedback circuit using the counter electromotive current to precisely maintain the speed at
±0.5% of the specified speed.
1 - 8
C141-E035-03EN
(4)
Actuator
The actuator, which uses a rotary voice coil motor (VCM), consumes little power and
generates little heat. The head assembly at the end of the actuator arm is controlled and
positioned via feedback of servo information in the data.
The actuator positions heads on the CCS zone over the disk and is locked by the mechanical
lock when the power is off or the spindle motor is stopped.
(5)
Air circulation (recirculation filter, breather filter)
The heads, disks, and actuator are hermetically sealed inside a disk enclosure (DE) to keep out
dust and other pollutants. The DE has a closed-loop air recirculation system. Using the
movement of the rotating disks, air is continuously cycled through a filter. This filter will trap
any dust generated inside the enclosure and keep the air inside the DE contaminant free. To
prevent negative pressure in the vicinity of the spindle when the disks begin rotating, a
breather filter is attached. The breather filter also equalizes the internal air pressure with the
atmospheric pressure due to surrounding temperature changes.
(6)
(7)
Read/write circuit
The read/write circuit uses head LSI chips and partial response class 4 maximum likelihood
(PR4ML) modulator and demodulator circuit to prevent errors caused by external noise, thus
improving data reliability.
Controller circuit
The controller circuit uses LSIs to increase the reliability and uses a high speed
microprocessing unit (MPU) to increase the performance of the SCSI controller.
C141-E035-03EN
1 - 9
1.3
System Configuration
Figure 1.8 shows the system configuration. The IDDs are connected to the SCSI bus of host
systems and are always operated as target. The IDDs perform input/output operation as
specified by SCSI devices which operate as initiator.
Figure 1.8 System configuration
(1)
SCSI bus configuration
Up to eight SCSI devices operating as an initiator or a target can be connected to the SCSI bus
for the 8-bit SCSI and up to 16 SCSI devices operating as an initiator or a target can be
connected to the SCSI bus for the 16-bit SCSI in any combination.
For example, the system can be configured as multi-host system on which multiple host
computers that operate as initiator or connected through the SCSI bus.
Using disconnect/reconnect function, concurrent input/output processing is possible on multi-
SCSI devices.
1 - 10
C141-E035-02EN
(2)
Addressing of peripheral device
Each SCSI device on the bus has its own unique address (SCSI ID:#n in Figure 1.6). For
input/output operation, a peripheral device attached to the SCSI bus that operates as target is
addressed in unit called as logical unit. A unique address (LUN: logical unit number) is
assigned for each logical unit.
The initiator selects one SCSI device by specifying that SCSI ID, then specifies the LUN to
select the peripheral device for input/output operation.
The IDD is constructed so that the whole volume of disk drive is a single logical unit, the
selectable number of SCSI ID and LUN are as follows:
·
·
SCSI ID:
LUN:
8-bit SCSI:Selectable from 0 to 7 (switch selectable)
16-bit SCSI:Selectable from 0 to 15 (switch selectable)
0 (fixed)
C141-E035-02EN
1 - 11
CHAPTER 2
SPECIFICATIONS
2.1 Hardware Specifications
2.2 SCSI Function Specifications
This chapter describes specifications of the IDD and the functional specifications of the SCSI.
2.1
Hardware Specifications
2.1.1 Model name and part number
Each model has a different data format and front panel type when shipped. (See Appendix D
for the model name (type) and product number.)
The data format can be changed by reinitializing with the user's system.
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2 - 1
2.1.2 Function specifications
Table 2.1 shows the function specifications of the IDD.
Table 2.1
Function specifications
Specification
MAB3045xx
4.55 GB
5.95 GB
3
Item
MAA3182xx
18.2 GB
23.9 GB
10
MAB3091xx
MAC3091xx
MAC3045xx
Formatted capacity/device (*1)
Unformatted capacity/device
Number of disks
9.1 GB
11.9 GB
5
9.1 GB
11.8 GB
5
4.55 GB
5.90 GB
3
5
Number of heads
19
10
5
10
Number of cylinders (*2)
Unformatted capacity/track
9,041
8,491
8,691
81,920 to
126,976
85,504 to 126,976
7,200±0.5%
79,872 to 126,976
Number of rotations (rpm)
Average latency time
10,033±0.5%
2.99 ms
4.17 ms
Minimum
0.9 ms (Read)/
1.1 ms (Write)
8.0 ms (Read)/
9.0 ms (Write)
17.0 ms (Read)/
18.0 ms (Write)
0.8 ms (Read)/
1.0 ms (Write)
7.5 ms (Read)/
8.5 ms (Write)
16.0 ms (Read)/
17.0 ms (Write)
Seek time (*3)
(Read/Write)
Average
Maximum
Start/stop time
(*4)
Start time
Stop time
30 s typ. (60 s max.)
30 s typ.
Recording mode
PR4ML
Recording density
Track density
121,000 to 159,000 bpi
9,620 TPI
116,093 to 159,084 bpi
9,200 TPI
External dimensions
Height
Width
Depth
41.3 mm
101.6 mm
146.0 mm
25.4 mm
101.6 mm
146.0 mm
Weight
1.0 kg
0.65 kg
9 W
0.70 kg
14 W
Power
consumption (*5)
16bit-SCSI
Single-ended type
13 W
Interface
Fast SCSI
Cable length: 6 m max
Fast 20 SCSI
Cable length: 3 m max (*6)
Cable length: 1.5 m max (*7)
Data transfer
rate (*8)
Disk drive
12.3 to
19.5 MB/s
13.2 to 19.5 MB/s
12 MB/s max.
17.2 to 27.2 MB/s
SCSI Asynchronous
mode
Synchronous
mode
40 MB/s max.
Logical data block length (*1)
SCSI command specification
512 to 528 byte (Fixed length)
ANSI X3.13-1986 and CCS (Rev. 4B) conformity
(SCSI-2 ANSI X3T9.2/86-109 Rev 10h) command support
SCSI-3 command partial support
Data buffer
512 KB FIFO ring buffer, multi-segment buffer: Segment
count 1 to 16, Read-ahead cache
2 - 2
C141-E035-03EN
(*1)
(*2)
(*3)
The formatted capacity can be changed by changing the logical block length and using spare
sector space. See Chapter 3 for the further information.
The number of user cylinders indicates the max., and includes the alternate cylinder. The
number of user cylinders and alternate cylinders can be specified at format of the IDD.
The positioning time is as follows:
2000
4000 6000 8000 10000
2000
4000 6000 8000 10000
MAA31xxxx
MAB30xxxx/MAC30xxxx
(*4)
The start time is the time from power on or start command to when the IDD is ready, and stop
time is the time for disks to completely stop from power off or stop command.
(*5)
(*6)
(*7)
(*8)
This value indicates at ready mode.
Up to 4 SCSI devices having capacitance of 25pF or less can use cable length of up to 3.0 m.
5 to 8 SCSI devices having capacitance of 25pF or less can use cable length of up to 1.5 m.
The maximum data transfer rate may be restricted to the response speed of initiator and by
transmission characteristics.
(*9)
The terminator power pin (SCSI connector) which supplies power to other terminators is not
used.
C141-E035-03EN
2 - 3
2.1.3 Environmental specifications
Table 2.2 lists environmental and power requirements.
Table 2.2
Environmental/power requirements
MAA3182xx
MAB3091xx
MAB3045xx
5 to 50°C
MAC3091xx
MAC3045xx
Operating
Non-operating
– 40 to 60°C
Temperature (*1)
DE surface
temperature at
operating
5 to 55°C
Gradient
15°C/h or less
20 to 80%RH
20 to 80%RH
Operating
Non operating
Relative humidity
Packaged (inside of a week) 5 to 90%RH
Maximum wet
bulb temperature
29°C (no condensation)
Operating (*3)
0.3 mm (5 to 20Hz)/0.5G (20 to 250 Hz) or less
Vibration (*2)
Shock (*2)
Non-operating
(*4)
3.1 mm (5 to 20Hz)/5G (20 to 250Hz) or less
Packaged 3.1 mm (5 to 20Hz)/5G (20 to 250Hz) or less
Operating
5G (11 ms half-sin.) or less
60G or less (11 ms half-sin)
Non-operating
50G or less
(11 ms half-sin.)
Operating
0 m to 3,000 m (above sea level)
0 m to 12,000 m (above sea level)
Altitute
(above sea level)
Non-operating
+12 VDC ±5%
Ready (Average)
Spin-up, Seek
Peak within
0.77 A
2.5 A (Max)
3.0 A
0.43 A
1.8 A (Max)
3.0 A
0.27 A
1.8 A (Max)
3.0 A
0.85 A
2.5 A (Max)
3.0 A
0.60 A
2.5 A (Max)
3.0 A
Power
requirements
Input power (*5)
100 ms at spin-up
+5 VDC ±5% (*6)
Ready
Random W/R
(about 80 IOPS)
0.75 A
1.1 A
Ripple (*7)
+5 V 100 mVp-p, +12 V 150 mVp-p
(*1)
(*2)
For detail condition, see Section 4.1.
Vibration applied to the drive is measured at near the mounting screw hole on the frame as
much as possible.
(*3)
(*4)
At random seek write/read and default on retry setting with log sweep vibration.
At power-off state after installation
Vibration displacement should be less than 2.5 mm.
(*5)
Input voltages are specified at the connector.
C141-E035-03EN
2 - 4
(*6)
(*7)
The terminator power pin (SCSI connector) which supplies power to other terminators is not
used (See Section 4.3).
High frequency noise is less than 100 mVp-p.
2.1.4 Error rate
Errors detected during initialization and replaced by alternate block assignments are not
included in the error rate. Data blocks to be accessed should be distributed over the disk
medium equally.
(1)
(2)
Unrecoverable error rate
Errors which cannot be recovered within 63 retries and ECC correction should not exceed 10
per 1015 bits.
Positioning error rate
Positioning errors which can be recovered by one retry should be 10 or less per 108 seeks.
2.1.5 Reliability
(1) Mean Time Between Failures (MTBF)
MTBF of the IDD during its life time is 1,000,000 hours (operating: 24 hours/day, 7
days/week average DE surface temperature: 40°C or less).
Note:
The MTBF is defined as:
Operating time (hours) at all field sites
MTBF=
The number of equipment failures from all field sites
Failure of the equipment means failure that requires repair, adjustments, or replacement.
Mishandling by the operator, failures due to bad environmental conditions, power trouble,
host system trouble, cable failures, or other failures not caused by the equipment are not
considered.
(2)
Mean Time To Repair (MTTR)
MTTR is the average time taken by a well-trained service mechanic to diagnose and repair a
drive malfunction. The drive is designed for a MTTR of 30 minutes or less.
C141-E035-03EN
2 - 5
(3)
Service life
The service life under suitable conditions and treatment is as follows.
The service life is depending on the environment temperature. Therefore, the user must design
the system cabinet so that the average DE surface temperature is as possible as low.
·
·
·
·
DE surface temperature: 45°C or less
DE surface temperature: 46°C to 50°C
DE surface temperature: 51°C to 55°C
DE surface temperature: 56°C and more strengthen cooling power so that DE
surface temperature is 55°C or less.
5 years
4 years
3 years
Even if the IDD is used intermittently, the longest service life is 5 years.
Note:
The "average DE surface temperature" means the average temperature at the DE surface
throughout the year when the IDD is operating.
(4)
Data security at power failure
Integrity of the data on the disk is guaranteed against all forms of DC power failure except on
blocks where a write operation is being performed. The above does not applied to formatting
disks or assigning alternate blocks.
2 - 6
C141-E035-03EN
2.2
SCSI Function Specifications
Table 2.3 shows the SCSI functions provided with the IDD.
See Appendix E for the SCSI interface functions provided for the IDD. Refer to the OEM
Manual –SCSI Physical Specifications–, for details or specifications.
Table 2.3
SCSI function specifications
Item
Specification
Single-ended type
Differential type
O
´
Electrical
requirements
Single-ended type Position where the terminating
resistor is mounted on the PCA
O
Differential type
Position where the terminating
resistor is mounted on the PCA
´
TERMPWR signal send/receive function
Non-shielded type (50 mil pitch): 16-bit SCSI
Shielded type
O
O
´
Connector
Data bus parity
O
O
O
Bus arbitration function
Disconnection/reconnection function
SCSI ID
8-bit SCSI
16-bit SCSI
#0 to #7
(Jumper selection)
#0 to #15
Addressing
(Jumper selection)
LUN (logical unit number)
Asynchronous mode
#0 fixed
8-bit SCSI
16-bit SCSI
O 6 MB/s max.
O 12 MB/s max.
Data transfer
Data buffer
Synchronous mode
8-bit SCSI
16-bit SCSI
O 20 MB/s max.
O 40 MB/s max.
512-KB programmable segment
buffer (1 to 16)
512 to 528 bytes
(Fixed length)
Data block length (Logical data length=Physical data length)
O : Provided
´ : Not provided
C141-E035-03EN
2 - 7
CHAPTER 3
DATA FORMAT
3.1 Data Space
3.2 Logical Data Block Addressing
3.3 Defect Management
This chapter explains data space definition, logical data block addressing, and defect management on
the IDD.
3.1
Data Space
The IDD manages the entire data storage area divided into the following three data spaces.
·
·
·
User space: Storage area for user data
Internal test space: Reserved area for diagnostic purposes
System space: Area for exclusive use of IDD itself
The user space allow a user access by specifying data. These space can be accessed with the
logical data block addressing method described in Section 3.2. The internal test space is used
by Read/write test of self-diagnostics test, but user can’t use direct access. The system space is
accessed inside the IDD at power-on or during the execution of a specific command, but the
user cannot directly access the system space.
3.1.1 Cylinder configuration
The IDD allocates cylinders to the user space, Internal test space, and system space. Figure
3.1 is the cylinder configuration.
Spare areas (alternate areas) for defective sectors are provided in the user space. Several
sectors in the last track of one cylinder and several cylinders (alternate cylinders) in the user
space are allocated as alternate areas according to the user's assignment (MODE SELECT
command). See Subsection 3.1.2 for details.
C141-E035-01EN
3 - 1
Figure 3.1 Cylinder configuration
Apart from the above logical configuration, the IDD intends to increase the storage capacity by
dividing all cylinders into several zones and changing a recording density of each zone.
Tables 3.1 and 3.2 show the zone layout and the track capacity.
3 - 2
C141-E035-03EN
Table 3.1
Zone layout and track capacity (MAA31xxxx)
Zone
0
1
2
3
4
5
6
Cylinder
0 to 769
770 to
1,549
1,550 to
2,279
2,280 to 2,700 to
3,500 to 4,260 to
4,259 5,089
2,699
150,833
230
3,499
146,666
224
Byte/track 162,250
154,160
240
141,666 136,666
¬
¬
Sector/track
248
216
208
Zone
7
8
9
10
11
12
13
Cylinder
5,090 to 6,100 to
6,480 to
7,149
7,150 to 7,670 to
7,960 to
8,489
8,490 to
9,039
6,099
6,479
127,625
194
7,669
118,333
180
7,959
115,833
176
Byte/track 130,000
121,900
186
110,416
167
102,500
160
Sector/track
200
Table 3.2
Zone layout and track capacity (MAB30xxxx)
Zone
0
1
2
3
4
5
6
Cylinder
0 to 769
770 to
1,549
1,550 to
2,279
2,280 to 2,700 to
3,500 to
4,259
4,260 to
5,089
2,699
150,833
230
3,499
146,666
224
Byte/track 162,250
154,166
240
141,666
216
136,666
208
¬
¬
Sector/track
248
Zone
7
8
9
10
11
12
Cylinder
5,090 to 6,100 to
6,480 to
7,149
7,150 to 7,670 to
7,960 to
8,489
6,099
6,479
127,625
194
7,669
118,333
180
7,959
115,833
176
Byte/track 130,000
121,900
186
110,416
167
Sector/track
200
Table 3.3
Zone layout and track capacity (MAC30xxxx)
Zone
0
1
2
3
4
5
6
Cylinder
0 to 409
410 to
1,209
1,210 to
1,759
1,760 to 2,560 to
3,260 to 3,910 to
3,909 4,039
2,559
151,104
230
3,259
147,484
225
Byte/track 162,774
154,698
240
143,719 141,207
¬
¬
Sector/track
248
220
214
Zone
7
8
9
10
11
12
13
Cylinder
4,310 to 4,970 to
5,510 to
6,109
6,110 to 6,610 to
7,470 to
8,069
8,070 to
8,689
4,969
Byte/track 136,738
Sector/track 210
5,509
132,779
201
6,609
123,873
187
7,469
116,128
180
128,061
195
110,150
166
103,154
156
C141-E035-03EN
3 - 3
(1)
User space
The user space is a storage area for user data. The data format on the user space (the length of
data block and the number of data blocks) can be specified with the MODE SELECT or
MODE SELECT EXTENDED command.
The default number of cylinders in the user space is 9,041 for MAA31xxxx, 8,491 for
MAB30xxxx and 8,691 for MAC30xxxx. The user, however, can select the number of
cylinders to be allocated in the user space by specifying 9,041 for MAA31xxxx, 8,491 for
MAB30xxxx and 8,691 for MAC30xxxx as the maximum and the number of alternate
cylinders + 1 as the minimum. The user can also specify the number of logical data blocks to
be placed in the user space with the MODE SELECT or MODE SELECT EXTENDED
command. When the number of logical data blocks is specified, as many cylinders as required
to place the specified data blocks are allocated in the user space.
A number starting with 0 is assigned to each cylinder required in the user space in ascending
order. If the number does not reach 9,041 (MAA31xxxx), 8,491 (MAB30xxxx) and 8,691
(MAC30xxxx), the rest of the cylinders will not be used.
Always one alternate cylinders can be established in the user space. Alternate cylinders will
be used for alternate blocks when primary cylinders in the user space are used up. See
Subsections 3.1.2 and 3.3.2 for details.
(2)
Internal test space
The Internal test space is an area for diagnostic purposes only and its data block length is
always 512KByte. The Internal test space consists of only 1 cylinder and outer-host cylinder
is always assigned. The user cannot change the number of cylinders in the Internal test space
or their positions.
The IDD reads or writes the data block in the Internal test space during the self-diagnostic test
specified with a SEND DIAGNOSTIC command.
(3)
System space
The system space is an area for exclusive use of the IDD itself and the following information
are recorded. The length of the data block is always 512 bytes.
·
·
·
·
Defect list (P list and G list)
MODE SELECT parameter (saved value)
Statistical information (log data)
Controller control information
The above information are duplicated in several different locations for safety.
Note:
The system space is also called SA space.
3 - 4
C141-E035-03EN
3.1.2 Alternate spare area
The alternate spare area is provided in the last track of each primary cylinder in the user space,
and in the last track of the cylinder and the alternate cylinder.
The spare area in each cylinder is placed at the end of the last track as shown in Figure 3.2.
These spare sectors are located in the end of the track logically, not necessarily located at the
end physically because of track skew or cylinder skew. (Details are explained on Subsection
3.1.3.)
Size can be specified by the MODE SELECT command.
The number of spare sectors per cylinder can be specified exceeding 32. The default value of
number of 9space sectors per cylinder is 20.
Figure 3.2 Spare area in cylinders
An alternate cylinder is used when spare sectors in a cylinder are used up or 0 is specified as
the number of spare sectors in a cylinder. Several cylinders at the end of the user space are
allocated as alternate cylinders as shown in Figure 3.3.
The number of alternate cylinder is 1.
The user space and the CE space share the alternate cylinders.
Figure 3.3 Alternate cylinder
Note:
Zero cannot be specified for both the number of spare sectors in each cylinder and the
number of alternate cylinders.
C141-E035-01EN
3 - 5
3.1.3 Track format
(1)
Physical sector allocation
Figure 3.4 shows the allocation of the physical sectors in a track. The length in bytes of each
physical sector and the number of sectors per track vary depending on the logical data block
length. The unused area (G4) exists at the end of the track in formats with most logical data
block lengths.
The interval of the sector pulse (length of the physical sector) is decided by multiple of
15MHz free running frequency. This clock is not equal to the interval of the byte clock for
each zone. Therefore, the physical sector length cannot be described with a byte length.
Figure 3.4 Track format
3 - 6
C141-E035-03EN
(2)
Track skew and cylinder skew
To avoid waiting for one turn involved in head and cylinder switching, the first logical data
block in each track is shifted by the number of sectors (track skew and cylinder skew)
corresponding to the switching time. Figure 3.5 shows how the data block is allocated in each
track.
At the head switching location in a cylinder, the first logical data block in track t + 1 is
allocated at the sector position which locates the track skew behind the sector position of the
last logical data block sector in track t.
At the cylinder switching location, like the head switching location, the first logical data block
in a cylinder is allocated at the sector position which locates the cylinder skew behind the last
logical sector position in the preceding cylinder. The last logical sector in the cylinder is
allocated when formatting, and is an unused spare sector.
Figure 3.5 Track skew/cylinder skew
The number of physical sectors (track skew factor and cylinder skew factor) corresponding to
the skew time varies depending on the logical data block length because the track skew and
the cylinder skew are managed for individual sectors. The IDD automatically determines
appropriate values for the track skew factor and the cylinder skew factor according to the
specified logical data block length. The value can be read out by the MODE SENSE or
MODE SENSE EXTENDED command after the track has been formatted.
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3 - 7
3.1.4 Sector format
Each sector on the track consists of an ID field, a data field, and a gap field which separates
them. Figure 3.6 gives sector format examples.
Figure 3.6 Sector format
Each sector on the track consists of the following fields:
Gaps (G1)
(1)
The gap length at the time of formatting (initializing) is listed in Figure 3.6. Pattern X'00' is
written on the gap field.
(2)
(3)
(4)
(5)
PLO Sync
In this field, pattern X'00' in the length in bytes listed in Figure 3.6 is written.
Trailing (TRNG)/Sync Byte (SB)
In this field, special pattern in the length in bytes listed in Figure 3.6 is written.
LBA
The logical block address is written in this field.
Data field
User data is stored in the data field of the sector. The length of the data field is equal to that of
the logical data block which is specified with a parameter in the MODE SELECT command.
Any even number between 512 and 528 bytes can be specified as the length.
3 - 8
C141-E035-02EN
(6)
(7)
(8)
(9)
BCRC
It is a 2-byte error detection code. Errors in the ID field. Single burst errors with lengths of up
to 16 bits for each logical block can be detected.
ECC
24-byte data error detection/correction code for the data field. It is possible to on-the-fly
correct the single burst errors with lengths of up to 89 bits.
PAD 1
A specified length of x‘00’ pattern shown in Figure 3.6 is written in this field. This field
includes the variation by rotation and circuit delay till reading/writing.
PAD 2/PAD 3
A specified length of x‘00’ pattern shown in Figure 3.6 is written in this field. This field
contains the processing time necessary to process next sector continuously. This field have
rotational speed variation.
C141-E035-02EN
3 - 9
3.1.5 Format capacity
The size of the usable area for storing user data on the IDD (format capacity) varies according
to the logical data block or the size of the spare sector area. Table 3.4 lists examples of the
format capacity when the typical logical data block length and the default spare area are used.
The following is the general formula to calculate the format capacity.
[Number of sectors of each zone] = [number of sectors per track ´ number of tracks (heads) –
number of alternate spare sectors per cylinder] ´ [number of cylinders in the zone]
[Formatted capacity] = [total of sectors of all zones] – [number of sectors per track in last zone
´ number of tracks (heads) ´ number of alternate cylinders] ¸ [number of physical sectors in
logical block] ´ [logical data block length]
The following formula must be used when the number of logical data blocks are specified with
the parameter in the MODE SELECT or MODE SELECT EXTENDED command.
[Format capacity] = [logical data block length] ´ [number of logical data blocks]
The logical data block length, the maximum logical block address, and the number of the
logical data blocks can be read out by a READ CAPACITY, MODE SENSE, or MODE
SENSE EXTENDED command after initializing the disk medium.
Table 3.4
Format capacity
Model
Data heads Data block length User blocks
Format capacity (GB)
MAA3182xx
MAB3091xx
MAB3045xx
MAC3091xx
MAC3045xx
19
10
5
35,680,750
17,824,700
8,895,370
17,871,600
8,918,420
18.2
9.1
512
4.55
9.1
10
5
4.55
Note:
Total number of spare sectors is calculated by adding the number of spare sectors in each
primary cylinder and the number of sectors in the alternate cylinders.
3 - 10
C141-E035-03EN
3.2
Logical Data Block Addressing
Independently of the physical structure of the disk drive, the IDD adopts the logical data block
addressing as a data access method on the disk medium. The IDD relates a logical data block
address to each physical sector at formatting. Data on the disk medium is accessed in logical
data block units. The INIT specifies the data to be accessed using the logical data block
address of that data.
The logical data block addressing is a function whereby individual data blocks are given
addresses of serial binaries in each drive.
(1)
Block address of user space
The logical data block address number is consecutively assigned to all of the data blocks in the
user space starting with 0 to the first data block.
The IDD treats sector 0, track 0, cylinder 0 as the first logical data block. The data block is
allocated in ascending order of addresses in the following sequence (refer to Figure 3.5):
1) Numbers are assigned in ascending order to all sectors in the same track.
2) By following step 1), numbers are assigned in ascending order of tracks to all sectors in
each track in the same cylinder except the last track.
3) By following step 1), numbers are assigned to all sectors in the last track except the spare
sectors.
4) After completing steps 1) through 3) for the same cylinder, this allocation is repeated from
track 0 in the next cylinder and on to the last cylinder (cylinder p-q in Figure 3.1) except
for the alternate cylinders in ascending order of cylinder numbers.
When the logical data block is allocated, some sectors (track skew and cylinder skew) shown
in Figure 3.5 are provided to avoid waiting for one turn involving head and cylinder switching
at the location where the track or the cylinder is physically switched.
See Subsection 3.3.2 for defective/alternate block treatment and the logical data block
allocation method in case of defective sectors exist on the disk.
(2)
Alternate area
Alternate areas in the user space (spare sectors in the cylinder and alternate cylinders) are not
included in the above logical data block addresses. Access to sectors which are allocated as an
alternate block in the alternate area is made automatically by means of IDD sector slip
treatment or alternate block treatment (explained in Subsection 3.3.2), so the user does not
have to worry about accessing the alternate area. The user cannot access with specifying the
data block on the alternate area explicitly.
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3 - 11
3.3
Defect Management
3.3.1 Defect list
Information of the defect location on the disk is managed by the defect list. The following are
defect lists which the IDD manages.
·
·
·
P list (Primary defect list): This list consists of defect location information available at the
disk drive shipment and is recorded in a system space. The defects in this list are
permanent, so the INIT must execute the alternate block allocation using this list when
initializing the disk.
D list (Data defect list): This list consists of defect location information specified in a
FORMAT UNIT command by the INIT at the initialization of the disk. This information
is recorded in the system space of the disk drive as the G list. To execute the alternate
block allocation, the FORMAT UNIT command must be specified.
C list (Certification defect list): This list consists of location information on defective
blocks which are detected by the verifying operation (certification) of the data block after
the initiation when executing the FORMAT UNIT command. The IDD generates this
information when executing the FORMAT UNIT command, and the alternate block
allocation is made upon the defective block. This information is recorded in the system
space of the disk drive as the G list.
·
G list (Growth defect list): This list consists of defective logical data block location
information specified in a REASSIGN BLOCKS command by the INIT, information on
defective logical data blocks assigned alternate blocks by means of IDD automatic
alternate block allocation, information specified as the D list, and information generated as
the C list. They are recorded in the system space on the disk drive.
The INIT can read out the contents of the P and G lists by the READ DEFECT DATA command.
3.3.2 Alternate block allocation
The alternate data block is allocated to a defective data block (= sectors) in defective sector
units by means of the defect management method inside the IDD.
The INIT can access all logical data blocks in the user space, as long as there is no error.
Spare sectors to which alternate blocks are allocated can be provided in either "spare sectors in
a cylinder" or "alternate cylinders". See Subsection 3.1.2 for details.
The INIT can specify the size and area for spare sectors by the MODE SELECT command at
the time of the initialization of the disk.
Both of the following are applicable to the alternate block allocation.
·
Sector slip treatment: Defective sectors are skipped and the logical data block
corresponding to those sectors is allocated to the next physical sectors. This treatment is
made on the same cylinder as the defective sector's and is effective until all spare sectors in
that cylinder are used up.
3 - 12
C141-E035-01EN
·
Alternate sector treatment: The logical data block corresponding to defective sectors is
allocated to unused spare sectors in the same cylinder or unused spare sectors in the
alternate cylinder.
The alternate block allocation is executed by the FORMAT UNIT command, the REASSIGN
BLOCKS command, or the automatic alternate block allocation. Refer to OEM Manual–SCSI
Logical Specifications–for details of specifications on these commands. The logical data
block is allocated to the next physically continued sectors after the above sector slip treatment
is made. On the other hand, the logical data block is allocated to spare sectors which are not
physically consecutive to the adjacent logical data blocks. If a command which processes
several logical data blocks is specified, the IDD processes those blocks in ascending order of
logical data block.
(1)
Alternate block allocation during FORMAT UNIT command execution
When the FORMAT UNIT command is specified, the allocation of the alternate block to those
defective sectors included in the specified lists (P, G, or D) is continued until all spare sectors
in the same cylinder are used up. When they are used up, unused spare sectors in the alternate
cylinder are allocated to the subsequent sectors in the cylinder by means of alternate sector
treatment. Figure 3.7 is examples of the alternate block allocation during the FORMAT UNIT
command execution.
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3 - 13
: n represents a logical data block number
: Defective sector
: Unused spare sector
Figure 3.7 Alternate block allocation by FORMAT UNIT command
If the data block verifying operation (certification) is not permitted (DCRT flag = 0) in the
FORMAT UNIT command, the IDD checks all initialized logical data blocks by reading them
out after the above alternate block allocation is made to initialize (format) the disk. If a
defective data block is detected during the check, the IDD generates the C list for defect
location information and allocates the alternate block to the defective data block. This
alternate block allocation is made by means of alternate sector treatment only like processing
by the REASSIGN BLOCKS command even if unused spare sectors exists in the same
cylinder.
3 - 14
C141-E035-01EN
(2)
Alternate block allocation by REASSIGN BLOCKS command
When the REASSIGN BLOCKS command is specified, the alternate block is allocated to the
defective logical data block specified by the initiator by means of alternate sector treatment. If
there are unused spare sectors in the same cylinder as the specified defective logical data
block, the alternate block is allocated to these unused spare sectors. However, the alternate
block is allocated to unused spare sectors in the alternate cylinder when all spare sectors in the
cylinder are used up.
Figure 3.8 is examples of the alternate block allocation by the REASSIGN BLOCKS
command.
: n represents a logical data block number
: Defective sector
: Unused spare sector
Figure 3.8 Alternate block allocation by REASSIGN BLOCKS command
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3 - 15
(3)
Automatic alternate block allocation
If the ARRE flag in the MODE SELECT parameter permits the automatic alternate block
allocation, the IDD automatically executes the alternate block allocation and data duplication
on the defective data block detected during the READ EXTENDED command. This
allocation method is the same as with the REASSIGN BLOCKS command (alternate sector
treatment).
IMPORTANT
Automatic alternate block allocation is made only once during the
execution of one command. If second defective block is detected,
the alternate block assignment processing for the first defective
block is executed but the alternate block assignment processing
for the second one is not executed and the command being
executed terminates. However, the initiator can recover the twice
error by issuing the same command again.
When an error is detected in a data block in the data area,
recovery data is rewritten and verified in automatic alternate
block allocation during the execution of the READ or READ
EXTENDED command. Alternate block allocation will not be
made for the data block if recovery is successful.
Example: Even if the data error which is recoverable by the
WRITE LONG command is simulated, automatic
alternate block allocation will not be made for the data
block.
3 - 16
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CHAPTER 4
INSTALLATION REQUIREMENTS
4.1 Mounting Requirements
4.2 Power Supply Requirements
4.3 Connection Requirements
This chapter describes the environmental, mounting, power supply, and connection requirements.
4.1
4.1.1 External dimensions
Figures 4.1 to 4.4 show the external dimensions of the IDD and the positions of the holes for
Mounting Requirements
the IDD mounting screws.
Note:
Dimensions are in mm.
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4 - 1
Figure 4.1 External dimensions (MAA31xxSC)
4 - 2
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Figure 4.2 External dimensions (MAA31xxSP)
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4 - 3
Figure 4.3 External dimensions (MAB30xxSC, MAC30xxSC)
4 - 4
C141-E035-03EN
Figure 4.4 External dimensions (MAB30xxSP, MAC30xxSP)
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4 - 5
4.1.2 Mounting
The permissible orientations of the IDD are shown in Figure 4.5, and the tolerance of the angle
is ±5° from the horizontal plane.
(a) Horizontal –1
(b) Horizontal –2
(c) Vertical –1
Direction of
gravity
(d) Vertical –2
(e) Upright mounting –1
(f) Upright mounting –2
Figure 4.5 IDD orientation
4.1.3 Notes on mounting
(1)
Mounting frame structure
To guarantee integrity of the IDD disk enclosure (DE) insulation once mounted on the frame
inside the system, special attention must be given to the note below.
Note:
Generally, SG and FG are connected at one point in the system enclosure. Therefore, use
following procedure to maintain the insulation when mounting the IDD.
a) Use the frame with an embossed structure or the like to avoid contact between the DE
base and FG. Mount the IDD with making a gap of 2.5 mm or more between the IDD
and the frame of the system.
b) As shown in Figure 4.6, the inward projection of the screw from the IDD frame wall
at the corner must be 4 mm or less.
4 - 6
C141-E035-02EN
c) Tightening torque of screw must be secured with 6kg-cm.
Damage : To absolutely guarantee integrity of the IDD disk enclosure (DE) insulation
once actually mounted to the frame inside the system, special attention must be given
to the cautionary notes below.
Figure 4.6 Mounting frame structure
(2)
Limitation of side-mounting
Mount the side using the screw holes at both the ends as shown in Figure 4.7. Do not use the
center hole.
Do not use these holes
Use these holes
Figure 4.7 Limitation of side-mounting
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4 - 7
(3)
Environmental temperature
Temperature condition at installed in a cabinet is indicated with ambient temperature measured
3 cm from the disk drive. At designing the system cabinet, consider following points.
·
Make a suitable air flow so that the DE surface temperature does not exceed 55°C.
CAUTION
An air flow with an adequate wind velocity must be maintained to
deal with much heat generated from the MAC30xxxx.
Reference value: An air flow with a wind velocity of more than
0.5 m/s is required in an environment at 40°C,
and an air flow with a wind velocity of more
than 1.0m/s in an environment at 45°C (Center
of DE cover 55°C).
·
Cool the PCA side especially with air circulation inside the cabinet. Confirm the cooling
effect by measuring temperature of specific ICs and the DE. These measurement results
should be within a criteria listed in Table 4.1.
Table 4.1
Surface temperature check point
No.
1
Measurement point
Center of DE cover
Criteria
55°C
83°C
75°C
85°C
2
Read channel LSI
VCM/SPM Driver
HDC
3
4
4
1
2
3
Figure 4.8 Surface temperature measurement points (MAA31xxxx/MAB30xxxx/ MAC30xxxx)
4 - 8
C141-E035-03EN
(4)
Service clearance area
The service clearance area, or the sides which must allow access to the IDD for installation or
maintenance, is shown in Figures 4.9.
[Surface P’]
• Setting terminal
• External operator panel
connector
[Surface R]
• Hole for mounting screw
[Surface P]
[Surface Q]
• Cable connection
• Hole for mounting screw
Figure 4.9 Service clearance area
(5)
(6)
External magnetic field
The drive should not be installed near the ferromagnetic body like a speaker to avoid the
influence of the external magnetic field.
Leak magnetic flux
The IDD uses a high performance magnet to achieve a high speed seek. Therefore, a leak
magnetic flux at surface of the IDD is large. Mount the IDD so that the leak magnetic flux
does not affect to near equipment.
(7)
Others
A hole or screw portion as shown in Figure 4.10 is used for adjusting air pressure balance
between inside and outside the DE. Do not fill with a seal or label.
Seals on the DE prevent the DE inside from the dust. Do not damage or peel off labels.
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4 - 9
MAA31xxxx
MAB30xxxx
MAC30xxxx
Air pressure adjustment hole
Air pressure adjustment hole
Air pressure adjustment hole
Figure 4.10 Air pressure adjustment hole
4 - 10
C141-E035-03EN
4.2
Power Supply Requirements
(1)
Allowable input voltage and current
The power supply input voltage measured at the power supply connector pin of the IDD
(receiving end) must satisfy the requirement given in Subsection 2.1.3. (For other
requirements, see Items (4) and (5) below.)
(2)
Current waveform (reference)
Figure 4.11 shows the waveform of +12 VDC.
MAA31xxxx, MAC30xxxx current wave form
MAB30xxxx current wave form
Figure 4.11 Current waveform (+12 VDC)
(3)
Power on/off sequence
a) The order of the power on/off sequence of +5 VDC and +12 VDC, supplied to the IDD,
does not matter.
b) In a system which uses the terminating resistor power supply signal (TERMPWR) on the
SCSI bus, the requirements for +5 VDC given in Figure 4.12 must be satisfied between the
IDD and at least one of the SCSI devices supplying power to that signal.
Figure 4.12 Power on/off sequence (1)
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4 - 11
c) In a system which does not use the terminating resistor power supply signal (TERMPWR)
on the SCSI bus, the requirements for +5 VDC given in Figure 4.13 must be satisfied
between the IDD and the SCSI device with the terminating resistor circuit.
SCSI devices with
the terminating
resistor
Figure 4.13 Power on/off sequence (2)
d) Between the IDD and other SCSI devices on the SCSI bus, the +5 VDC power on/off
sequence is as follows:
·
In a system with its all SCSI devices designed to prevent noise from leaking to the
SCSI bus when power is turned on or off, the power sequence does not matter if the
requirement in b) or c) is satisfied.
·
In a system containing an SCSI device which is not designed to prevent noise from
leaking to the SCSI bus, the requirement given in Figure 4.14 must be satisfied
between that SCSI device and the IDD.
SCSI devices
without noise
leaking designed
Figure 4.14 Power on/off sequence (3)
4 - 12
C141-E035-02EN
(4)
Sequential starting of spindle motors
After power is turned on to the IDD, a large amount of current flows in the +12 VDC line
when the spindle motor rotation starts. Therefore, if more than one IDD is used, the spindle
motors should be started sequentially using one of the following procedures to prevent
overload of the power supply unit. For how to set a spindle motor start control mode, see
Subsection 5.3.2.
a) Issue START/STOP commands at 20-second intervals to start the spindle motors. For
details of this command specification, refer to SCSI Logical Interface Specifications.
b) Turn on the +12 VDC power in the power supply unit at 20-second intervals to start the
spindle motors sequentially.
(5)
Power supply to SCSI terminating resistor
If power for the terminating resistor is supplied from the IDD to other SCSI devices through
the SCSI bus, the current-carrying capacity of the +5 VDC power supply line to the IDD must
be designed with considering of an increase of up to 200 mA.
A method of power supply to the terminating resistor is selected with a setting terminal on the
IDD. See Subsection 5.3.2 for this selection.
For the electrical condition of supplying power to the terminating resistor, refer to Subsection
1.4.2 in SCSI Physical Interface Specifications.
(6)
Noise filter
To eliminate AC line noise, a noise filter should be installed at the AC input terminal on the
IDD power supply unit. The specification of this noise filter is as follows:
·
·
Attenuation: 40 dB or more at 10 MHz
Circuit construction: T-configuration as shown in Figure 4.15 is recommended.
Figure 4.15 AC noise filter (recommended)
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4 - 13
4.3
Connection Requirements
4.3.1 Single-ended 16-bit SCSI model (MAA31xxSP, MAB30xxSP, MAC30xxSP)
(1)
Connectors
Figures 4.16 show the locations of connectors and terminals on the single-ended 16-bit SCSI
model.
·
·
·
Power supply connector
SCSI connector
External operator panel connector
External operator panel
Spindle sync connector
(CN7)
Power supply
connector
(CN1)
External operator
panel connector
(CN1)
SCSI connector
(CN1)
Figure 4.16 Connectors and terminals location (single-ended 16-bit SCSI)
4 - 14
C141-E035-03EN
(2)
SCSI connector and power supply connector
a. 16-bit SCSI
The connector for the SCSI bus is an unshielded P connector conforming to SCSI-3 type
which has two 34-pin rows spaced 1.27 mm (0.05 inch) apart. Figure 4.17 shows the SCSI
connector. See Section C3 in Appendix C for the signal assignments on the SCSI
connector.
For details on the physical/electrical requirements of the interface signals, refer to Sections
1.3 and 1.4 in the SCSI Physical Interface Specifications.
The tolerance is ±0.127 mm (0.005 inch) unless otherwise
Figure 4.17 16-bit SCSI interface connector
b. Power supply connector
Figure 4.18 shows the shape and the terminal arrangement of the output connector of DC
power supply.
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4 - 15
Figure 4.18 Power supply connector (16-bit SCSI model)
(3)
(4)
SG terminal
The IDD is not provided with an SG terminal (fasten tab) for DC grounding. Therefore, when
connecting SG and FG in the system, use the +5 VDC RETURN (ground) inside the power
supply connector as the SG on the power supply side.
Connector for external operator panel
·
Connector for 16-bit SCSI external operator panel
CN1 provides connector for the external operator panel other than the SCSI bus as shown
in Figure 4.19. Also, a connector for the external operator panel are provided on the IDD
as shown in Figure 4.20. This allows connection of an external LED on the front panel,
and an SCSI ID setting switch. For the recommended circuit of the external operator
panel, see Subsection 4.3.5.
Pin
A1
Signal
–ID0
A2
(Reserved)
–ID1
A3
A4
(Open)
–ID2
A5
A6
–SYNC
–ID3
A7
A8
–LED
A9
TERMON
GND
A10
A11
A12
+5 V
(Reserved)
Figure 4.19 External operator panel connector (CN1)
4 - 16
C141-E035-02EN
Figure 4.20 External operator panel connector (CN7)
C141-E035-02EN
4 - 17
(5)
External operator panel connector Signals
a. 16-bit SCSI –ID3, –ID2, –ID1, –ID0: Input signals
These signals are used for providing switches to set the SCSI ID of the IDD externally.
Figure 4.21 shows the electrical requirements. For the recommended circuit examples, see
Subsection 4.3.5.
Figure 4.21 16-bit SCSI ID external input
4 - 18
C141-E035-02EN
b. –LED and LED (V): Output signals
These signals actuate the external LED as same as LED on the front panel of the disk
drive. The electrical requirements are given in Figure 4.22.
Notes:
1. The external LED is identical in indication to the LED on the front of the IDD.
The meaning of indication can be selected with the CHANGE DEFINITION
command.
For details of command, refer to SCSI Logical Interface
Specifications.
2. Any load other than the external LED (see Subsection 4.3.5) should not be
connected to the LED (V) and –LED terminals.
Figure 4.22 Output signal for external LED
c. -SYNC (-Spindle sync): Input/output signal
The pin CN1-A6, or CN7-10 inputs or outputs the signal for rotational synchronization
when the IDD carries out rotational synchronization.
1) Outputs the master signal for rotational synchronization when the IDD is the master
of rotational synchronization.
C141-E035-02EN
4 - 19
2) Inputs the master signal when the IDD carries out rotational synchronization with the
external master signal.
This signal is pulled up with 3 kW resistor internally, it is necessary to connect the
external terminating resistor.
For details of spindle synchronization function , refer to Section 3.1, in the SCSI
Logical Interface Specifications.
CAUTION
Make the CN1-A6 pin or CN7-10 pin open when not having the
IDD carry out spindle synchronization.
d. –DISCON (–disable terminator connection)/TERMON (terminator on): Input signal
The CN1-A9 (TERMON) or CN6-06 (–DISCON) pin setting specifies whether to operate
the terminating resistor built-in to the IDD. Table 4.2 shows the electrical requirements.
See Subsection 5.4.4 for the requirements for terminating resistor operation.
Table 4.2
External inputs for operating terminating resistor (16-bit single-ended type)
Input level
0 to 0.4 VDC
(Open)
Function
The terminating resistor operates.
The terminating resistor does not operate.
Note:
When the external operator panel is connected to the CN1-A9 pin and the operation of
the terminating resistor is set on the external operator panel, the corresponding CN6-06
pin must always be set to open.
See Subsection 5.3.3.
4 - 20
C141-E035-02EN
(6)
Cable connection requirements
The requirements for cable connection between the IDD, host system, and power supply unit
are given in Figure 4.23. Recommended components for connection are listed in Table 4.1.
External operator panel
(example)
Figure 4.23 Cables connection (16-bit SCSI model)
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4 - 21
4.3.2 SCA2 type SCSI model (MAA31xxSC, MAB30xxSC, MAC30xxSC)
(1)
Connectors
Figure 4.24 shows the locations of connectors and terminals on the SCA2 type SCSI model.
SCSI connector (including power supply connector)
SCSI connector
Figure 4.24 Connectors and terminals location of SCA2 type SCSI model
4 - 22
C141-E035-03EN
(2)
SCSI connector and power supply connector
a. SCA type SCSI
The connector for the SCSI bus is an unshielded SCA-2 connector conforming to SCSI-3
type which has two 40-pin rows spaced 1.27 mm (0.05 inch) apart. Figure 4.25 shows the
SCSI connector. See Section C.5 in Appendix C for signal assignments on the connector.
For details on the physical/electrical requirements of the interface signals, refer to Sections
1.3 and 1.4 in SCSI Physical Interface Specifications.
ESD contact
Figure 4.25 SCA2 type SCSI connector
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4 - 23
4.3.3 Cable connector requirements
Table 4.3 lists the recommended components cable connection.
Table 4.3
Recommended components for connection
Name
Par number
Manufacturer
Reference
(Figures 4.23
and 4.28)
Applicable
model
MAx3xxxSP SCSI cable (CN1) Cable socket
(closed-end type)
786090-7
—
AMP
S1
Signal cable
—
Power supply cable Cable socket
1-480424-0
AMP
S2
(CN1)
housing
Contact
Cable
60619-4
60617-4
External operator
panel (CN1)
Cable socket
housing
FCN-723J012/2M
Fujitsu Limited
Fujitsu Limited
S3
S4
Contact
Cable
FCN-723J-G/AM
AWG26 to 34
External operator
panel (CN7)
Cable socket
housing
FCN-723J016/2M
Fujitsu Limited
Fujitsu Limited
Contact
Cable
FCN-723J-G/AM
AWG28
MAx3xxxSC SCSI connector
(CN1)
Connector
787311-1
AMP
(1)
SCSI cable
All SCSI devices on one bus are daisy-chained with an SCSI cable. A terminating resistor
must be mounted in the SCSI device at each end of the SCSI cable.
Because an SCSI terminating resistor module has been mounted in the IDD of single-ended
type SCSI at factory shipment, it must be set to not-connection when the IDD is not connected
at either end of the SCSI cable. See Section 5.3 for details.
The maximum number of SCSI devices that can be connected to the SCSI bus is 16 for the 16-
bit SCSI, including the host adapter, IDD, and other SCSI equipment.
For the 16-bit SCSI, the connector for the SCSI cable must be an unshielded 68-contact socket
having 34-contact rows spaced 1.27 mm (0.05 inch) apart. (See Figure 4.26.)
4 - 24
C141-E035-02EN
<SCSI cable connector for 16-bit SCSI>
16-bit SCSI
Symbol
Remarks
mm
inch
C1
C2
C3
C4
C5
C6
2.540
41.910
1.270
46.280
5.690
42.540
0.110
1.650
0.050
1.822
2.240
1.675
Note:
The tolerance is ±0.127 mm (0.005 inch) unless otherwise specified.
Figure 4.26 SCSI cable connector
C141-E035-02EN
4 - 25
The maximum length of the SCSI cable is as follow. If more than one SCSI device is
connected, the total cable length must not exceed the value given in Table 4.2. The cable
length between single-ended type SCSI devices must be more than 30 cm (recommended: 50
cm or more). Each system should decide the cable length between SCSI devices so that the
total cable length of the system satisfies the specification.
Table 4.4
Total cable length of SCSI cable
16-bit SCSI
Type
Fast SCSI
Ultra SCSI
Single-ended
Up to 3 m
[Up to 6 m is allowable for
5 MB/s or less]
Up to 3.0 m
[4 SCSI devices having
capacitance of 25 pF]
Up to 1.5 m
[5 to 8 SCSI devices
having capacitance of 25 pF]
For the SCSI cables, the use of 25- and 34-pair twisted pair cables satisfying the requirements
in Table 4.5 is recommended.
Table 4.5
SCSI cable requirements
Requirements
Conductor size
16-bit SCSI (34-pair)
30 AWG or bigger
Characteristic impedance
Twist pair cable condition
90 to 132 W
Pins n and n + 33
To maintain the transmission characteristics and reduce signal reflection, cables having
different a characteristic impedance must not be used on the same SCSI bus.
When an SCSI device is connected to the SCSI cable at a point other than either end of the
cable, connection to the SCSI connector must be at a branch point of the cable. If an SCSI
device is connected to last SCSI device except when the cable has a terminating resistor. (See
Figure 4.27.)
4 - 26
C141-E035-02EN
Figure 4.27 SCSI cable termination
(2)
(3)
Power cable
IDDs must be star-connected to the DC power supply (one to one connection) to reduce the
influence of load variations.
DC ground
The DC ground cable must always be connected to the IDD because no fasten terminal
dedicated to SG is provided with the IDD. Therefore, when SG and FG are connected in the
system, it is necessary to connect SG and FG at the power supply or to connect SG of the
power supply to FG of the system.
(4)
External operator panel
The external operator panel is installed only when required for the system. When connection
is not required, leave open the following pins in the external operator panel connector of the
IDD : Pins 15, 16 and 01 pins 10 through 08 in CN7 and pins A1 through A12 in CN1.
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4 - 27
4.3.4 External operator panel
A recommended circuit of the external operator panel is shown in Figure 4.28. Since the
external operator panel is not provided as an option, this panel must be fabricated at the user
site referring to the recommendation if necessary.
Figure 4.28 External operator panel circuit example (MAx3xxxSP)
Note:
Do not connect the external LED to both CN1 and CN7. Connect it to either of them.
4 - 28
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CHAPTER 5
INSTALLATION
5.1 Notes on Handling Drives
5.2 Connections
5.3 Setting Terminals
5.4 Mounting Drives
5.5 Connecting Cables
5.6 Confirming Operations after Installation and Preparation
for Use
5.7 Dismounting Drives
This chapter describes the notes on handling drives, connections, setting switches and plugs, mounting
drives, connecting cables, confirming drive operations after installation and preparation for use, and
dismounting drives.
5.1
Notes on Handling Drives
(1)
General notes
a) Do not give the drive shocks or vibrations exceeding the value defined in the standard
because it may cause critical damage to the drive. Especially be careful when unpacking.
b) Do not leave the drive in a dirty or contaminated environment.
c) Since static discharge may destroy the CMOS semiconductors in the drive, note the
following after unpacking:
·
·
Use an antistatic mat and body grounding when handling the drive.
Hold the DE when handling the drive. Do not touch PCAs except for setting.
(2)
Unpackaging
a) Use a flat work area. Check that the "This Side Up" sign side is up. Handle the package
on soft material such as a rubber mat, not on hard material such as a desk.
b) Be careful not to give excess pressure to the internal unit when removing cushions.
c) Be careful not to give excess pressure to the PCAs and interface connector when removing
the drive from the antistatic bag.
d) Do not remove the sealing label or cover of the DE and screws.
C141-E035-01EN
5 - 1
(3)
Installation
a) Do not attempt to connect or disconnect connections when power is on. The only pin
settings that may be altered are pins 13, 14 (Write Protect) in CN7.
b) Do not move the drive when power is turned on or until the drive completely stops (for 30
seconds) after power is turned off.
(4)
Packaging
a) Store the drive in an antistatic vinyl bag with a desiccant (silica gel).
b) It is recommended to use the same cushions and packages as those at delivery. If those at
delivery cannot be used, use a package with shock absorption so that the drive is free from
direct shocks. In this case, fully protect the PCAs and interface connector so that they are
not damaged.
c) Indicate "This Side Up" and "Handle With Care" on the outside of the package so that it is
not turned over.
(5)
Delivery
a) When delivering the drive, provide packaging and do not turn it over.
b) Minimize the delivery distance after unpacking and avoid shocks and vibrations with
cushions. For the carrying direction at delivery, use one of the mount allowable directions
in Subsection 4.2.2 (vertical direction is recommended).
(6)
Storage
a) Provide vaporproof packaging for storage.
b) The storage environment must satisfy the requirements specified in Subsection 2.1.3 when
the drive is not operating.
c) To prevent condensation, avoid sudden changes in temperature.
5 - 2
C141-E035-02EN
5.2
Connections
Figure 5.1 shows examples of connection modes between the host system and the IDD. For
the 16-bit SCSI, up to 16 devices including the host adapter, IDD, and other SCSI devices can
be connected to the SCSI bus in arbitrary combinations. Install a terminating resistor on the
SCSI device connected to both ends of the SCSI cable.
See Section 4.4 for the cable connection requirements and power cable connections.
Connecting one IDD
(1)
(2)
Connecting more than one IDD (single host)
Figure 5.1 SCSI bus connections (1 of 2)
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5 - 3
(3)
Connecting more than one IDD (multi-host)
Figure 5.1 SCSI bus connections (2 of 2)
5 - 4
C141-E035-01EN
5.3
Setting Terminals
The user must set the following terminals and SCSI terminating resistor before installing the
IDD in the system.
·
Setting terminal:
CN6, CN7
Figures 5.2 shows the setting terminal position of SP model. Figures 5.3 shows SP models for
allocation and default settings.
CAUTION
1. The user must not change the setting of terminals not described in this
section. Do not change setting status set at factory shipment.
2. Do not change the setting of terminals except following setting pins
during the power is turned on.
·
Write protect
MAx3xxxSP: CN7 13-14
3. To short the setting terminal, use the short plug attached when the
device is shipped from the factory.
CN6
1
6
CN1
15/16
CN7
1/2
Figure 5.2 MAx3xxxSP setting terminals position
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5 - 5
Figure 5.3 Setting terminals (MAx3xxxSP)
5 - 6
C141-E035-02EN
5.3.1 SCSI ID setting
(1)
SCA type 16-bit SCSI model (MAx3xxxSC)
There is no SCSI ID setting terminal for SCA type model. Set the SCSI ID using ID0, ID1,
ID2, and ID3 signals on the SCSI interface connector (CN1).
(2)
Single-ended 16-bit SCSI model (MAx3xxxSP)
Table 5.1 shows the SCSI ID setting. Refer to Figures 5.2 and 5.3 for connector positioning
and allocation.
IMPORTANT
When the SCSI ID is set using the external operator panel
connector CN1, all pins listed in Table 5.1 should be open. If any
of pins are shorted, unexpected SCSI ID is set.
Table 5.1
SCSI ID setting (single-ended 16-bit SCSI model: MAx3xxxSP)
SCSI ID
MAx3xxxSP (CN7)
5-6
3-4
1-2
5-6
0
Open
Open
Open
Open
Open
Open
Open
Open
Short
Short
Short
Short
Short
Short
Short
Short
Open
Open
Open
Open
Short
Short
Short
Short
Open
Open
Open
Open
Short
Short
Short
Short
Open
Open
Short
Short
Open
Open
Short
Short
Open
Open
Short
Short
Open
Open
Short
Short
Open
Short
Open
Short
Open
Short
Open
Short
Open
Short
Open
Short
Open
Short
Open
Short
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 (*1)
*1 Set at factory shipment
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5 - 7
IMPORTANT
1. Set the SCSI ID so that there are no duplicates between SCSI devices
on the same SCSI bus.
2. The priority of SCSI bus use in ARBITRATION phase is determined by
SCSI ID as follows:
7 > 6 > 5 > 4 > 3 > 2 > 1 > 0 > 15 > 14 > 13 > 12 > 11 > 10 > 9 > 8
5.3.2 Each mode setting
(1)
Setting terminal power supply
Refer to Table 5.2 for controlling the supply of power from the drive to the SCSI terminal
resistance power source (TERMPOW). However, this setting may not be used with SCA2
type 16 bit-SCSI (MAx3xxxSC). For information on MAx3xxxSP, refer to Figures 5.2 and
5.3.
Table 5.2
Setting SCSI terminal power supply (single-ended 16-bit SCSI model: MAx3xxxSP)
Supply on/off of SCSI terminating resistor power from IDD
CN6 1-2
Open
Supply off
Supply on
Short (*1)
*1 Setting at factory shipment
(2)
Motor start mode
Set how to control the starting of the IDD spindle motor according to Table 5.3. This setting
only determines the operation mode when the power supply is turned on or the microcode is
downloaded. In both modes, stopping or restarting the spindle motor can be controlled by
specifying the START/STOP UNIT command.
This setting is not provided for SCA2 type 16-bit SCSI model (MAx3xxxSC).
For information on MAx3xxxSP, refer to Figures 5.2 and 5.3.
Table 5.3
Motor start mode setting (single-ended 16-bit SCSI model: MAx3xxxSP)
Start timing of the spindle motor
CN6 3-4
Open
Starting of the motor is controlled with the START/STOP UNIT command.
The motor is started immediately after the power supply is turned on or the
microcode is downloaded.
Short (*1)
*1 Setting at factory shipment
Refer to Chapter 3 of the SCSI Logical Interface Specifications for details of the
START/STOP UNIT command.
5 - 8
C141-E035-02EN
5.3.3 Write protect, terminating resistor setting
(1)
Write protect
When the write protect function is enabled, writing to the disk medium is disabled. The write
protect function setting is not provided to the SCA2 type 16-bit SCSI model (MAx3xxxSC).
For information on MAx3xxxSP, refer to Figure 5.2 and 5.3.
Table 5.4
Write protect setting (single-ended 16-bit SCSI model: MAx3xxxSP)
Write protect
MAx3xxxSP
CN7 13-14
Open (*1)
Short
Write operation is enabled.
Write operation is disable.
*1 Setting at factory shipment
(2)
Connection of terminating resistor on SCSI interface
a. SCA2 type 16-bit SCSI model (MAx3xxxSC)
Since there is no SCSI terminating resistor on the SCSI interface for SCA2 type 16-bit
SCSI, there is no setting on the IDD.
b. Single-ended 16-bit SCSI model (MAx3xxxSP)
Setting terminals CN6 5-6 set whether to use the terminating resistor circuit on the SCSI
interface provided for the IDD (see Table 5.5).
IMPORTANT
When the external operator panel is connected using the external
operator panel connector CN1, this setting is effective only when
the A9 pin (TERM-ON) is open.
Table 5.5
Setting of connection of terminating resistor on SCSI interface
(single-ended 16-bit SCSI model: MAx3xxxSP)
Connecting SCSI interface terminating resistor
MAx3xxxSP
CN6 5-6
Open
Terminating resistor circuit is not connected.
Terminating resistor circuit is connected.
* Set at factory shipment
Short *
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5 - 9
5.3.4 Mode settings
In addition to the previously described settings using setting terminals, the IDD is provided
with several mode settings. The mode settings are enabled by specifying the CHANGE
DEFINITION command. Table 5.6 lists the mode settings and their settings at factory
shipment.
Refer to Section 3.1.4 of the SCSI Logical Interface Specifications for details of the command.
Table 5.6
Default mode settings (by CHANGE DEFINITION command)
Mode setting
Contents
SCSI-2
SCSI level
SYNCHRONOUS DATA TRANSFER REQUEST message
sending
Sent from IDD
UNIT ATTENTION report mode
Reselection retry count
Reported
Not restricted
Sent from IDD
250 ms
WIDE DATA TRANSFER REQUEST message sending
Reselection time-out delay
0 sec (MAx3xxxSP)
12 sec × SCSI ID
(MAx3xxxSC)
Spindle motor start delay time
5 - 10
C141-E035-02EN
5.4
5.4.1 Check before mounting
Reconfirm if the setting terminals are set correctly before mounting the drive in the system
Mounting Drives
cabinet. For setting terminals location, see Section 5.3.
(1)
Single-ended 16-bit SCSI model (MAx3xxxSP)
Reconfirm if the setting terminals are set correctly according to Table 5.7.
Table 5.7
Setting check list (MAx3xxxSP)
Setting contents
(Check item)
Setting
position
No.
Check
Remarks
Setting
terminal
CN6
1
2
3
Terminal power supply
Motor start mode
CN6
CN6
1 - 2
3 - 4
5 - 6
Short
Short
Short
Open
Open
Open
Connection of terminating CN6
resistor on SCSI interface
Setting contents
(Check item)
Setting
position
No.
1
Check
(SCSI ID = __)
Remarks
Setting
terminal
CN7
SCSI ID
CN7
7 - 8
5 - 6
3 - 4
1 - 2
2
Write protect
CN7 13 - 14
Short
Open
5.4.2 Mounting procedures
Since mounting the drive depends on the system cabinet structure, determine the work
procedures considering the requirements specific to each system. The general mounting
method and items to be checked are shown below.
See Subsection 4.2 for the details of requirements for installing the IDD.
1) With a system to which an external operator panel is mounted, if it is difficult to access the
connector after the drive is mounted on the system cabinet, connect the external operator
panel cable before mounting the drive.
2) Fix the drive in the system cabinet with four mounting screws as follows:
·
The drive has 10 mounting holes (both sides: 3 ´ 2, bottom: 4). Fix the drive by
using four mounting holes of both sides or the bottom.
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5 - 11
·
·
Use mounting screws whose lengths inside the drive mounting frame are 4 mm or less
when the screws are tightened (see Figure 4.6).
When mounting the drive, be careful not to damage parts on the PCAs.
3) Check that the DE (signal ground) does not touch the system cabinet chassis (frame
ground). There must be a 2.5 mm or more space between the DE and chassis (see Figure
4.6).
5.5
Connecting Cables
Connect the IDD and system with the following cables. See Section 4.4 for further details of
the requirements for IDD connector positions and connecting cables.
·
·
·
·
Power cable
SCSI cable
External operator panel cable (if required)
Spindle sync cable
The general procedures and notes on connecting cables are described below. Especially, pay
attention to the inserting direction of each cable connector.
CAUTION
1. Check that system power is off before connecting or disconnecting
cables.
2. Do not connect or disconnect cables when power is on.
a) Connect power cable.
b) Connect the external operator panel (if required for system).
c) Connect the SCSI cable.
d) Fix the cables so that they do not touch the DE and PCAs, or so that the smooth flow of
the cooling air in the system cabinet is assured.
5 - 12
C141-E035-02EN
CAUTION
1. Be careful of the insertion directions of the SCSI connectors. With the
system in which terminating resistor power is supplied via the SCSI
cable, if the power is turned on, the overcurrent protection fuse of the
terminating resistor power supplier may be blown or the cable may be
burnt if overcurrent protection is not provided.
When the recommended parts listed in Table 4.1 are used, inserting
the cables in the wrong direction can be prevented.
2. To connect SCSI devices, be careful of the connection position of the
cable. Check that the SCSI device with the terminating resistor is the
last device connected to the cable.
5.6
Confirming Operations after Installation and Preparation for use
5.6.1 Confirming initial operations
This section describes the operation check procedures after power is turned on. Since the
initial operation of the IDD depends on the setting of the motor start mode, check the initial
operation by either of the following procedures.
(1)
Initial operation in the case of setting so that motor starts at powering-on
a) When power is turned on, the LED blinks an instant and the IDD executes initial self-
diagnosis.
b) If an error is detected in the initial self-diagnosis, the LED on the front panel blinks
periodically.
Remark:
The spindle motor may or may not start rotating in this stage.
c) When the IDD status is idle, the LED on the front panel remains off (when the initiator
accesses the IDD via the SCSI bus, the LED lights).
(2)
Initial operation in the case of setting so that motor starts with START/STOP command
a) When power is turned on, the LED blinks an instant and the IDD executes initial self-
diagnosis.
b) If an error is detected in the initial self-diagnosis, the LED on the front panel blinks.
C141-E035-02EN
5 - 13
c) The spindle motor does not start rotating until the START/STOP UNIT command for the
start is issued. The INIT needs to issue the START/STOP UNIT command to start the
spindle motor by the procedure in Subsection 5.6.2.
d) The disk drive enters the READY status in 30 seconds after the START/STOP UNIT
command is issued. At this time, the IDD reads "system information" from the system
space on the disk.
e) The LED blinks during command execution.
(3)
Check items at illegal operation
a) Check that cables are mounted correctly.
b) Check that power and voltages are supplied correctly (measure them with the IDD power
connection position).
c) Check the setting of each setting terminal. Note that the initial operation depends on the
setting of the motor start mode and LED display requirements.
d) If an error is detected in initial self-diagnosis the LED on the front panel blinks. In this
case, it is recommended to issue the REQUEST SENSE command from the initiator (host
system) to obtain information (sense data) for error analysis.
IMPORTANT
The LED lights during the IDD is executing a command.
However, in same commands, the lighting time is only an instant.
Therefore, it seems that the LED blinks or the LED remains off.
5 - 14
C141-E035-02EN
5.6.2 Checking SCSI connection
When the initial operation is checked normally after power is turned on, check that the IDD is
connected to the SCSI bus from the host system. Although checking the connection depends
on the structure of the host system, this section describes the general procedures.
(1)
Checking procedure
Issuing the commands and determining the end status depends on the start mode of the spindle
motor and UNIT ATTENTION report mode (specified with setting terminal). Figure 5.4
shows the recommended checking procedure for the mode that the motor starts when power is
turned on. Figure 5.5 shows for the mode that the motor starts by the START/STOP
command. In these recommended checking procedures, following items are checked.
Note:
Following steps a) to e) correspond to a) to e) in Figures 5.4 and 5.5.
a) Issue the TEST UNIT READY command and check that the IDD is connected
correctly to the SCSI bus and the initial operation after power is turned on ended
normally. The command issue period of the TEST UNIT READY command shall be
more than 20 ms.
b)
To control starting of the spindle motor from the host system, issue the
START/STOP UNIT command to start the spindle motor.
c) Check the SCSI bus operations with the WRITE BUFFER and READ BUFFER
commands. Use data whose data bus bits change to 0 or 1 at least once. (Example:
Data with an increment pattern of X'00' to X'FF')
d) Start the IDD self-diagnostic test with the SEND DIAGNOSTIC command and check
the basic operations of the controller and disk drive.
C141-E035-02EN
5 - 15
Motor starts when power is turned on
Figure 5.4 Checking the SCSI connection (A)
5 - 16
C141-E035-02EN
Motor starts by START/STOP command
Figure 5.5 Checking the SCSI connection (B)
C141-E035-02EN
5 - 17
(2)
Checking at abnormal end
a) When sense data can be obtained with the REQUEST SENSE command, analyze the sense
data and retry recovery for a recoverable error. Refer to Chapter 4 of SCSI Logical
Interface Specifications for further details.
b) Check the following items for the SCSI cable connection:
·
·
·
All connectors including other SCSI devices are connected correctly.
The terminating resistor is mounted on both ends of the cable.
Power is connected to the terminating resistor.
c) Check the setting of the terminals. Note that the checking procedure of SCSI connection
differs depending on the setting of the motor start mode and UNIT ATTENTION report
mode.
5.6.3 Formatting
Since the disk drive is formatted with a specific (default) data format for each model (part
number) when shipped from the factory, the disk need not be formatted (initialized) when it is
installed in the system.
However, when the system needs data attributes different from the default format, all sides of
the disk must be formatted (initialized) according to the procedures below.
The user can change the following data attributes at initialization:
·
·
·
Logical data block length
Number of logical data blocks or number of cylinders in the user space
Alternate spare area size
This section outlines the formatting at installation. Refer to Chapters 3 and 5 of SCSI Logical
Interface Specifications for further details.
(1)
MODE SELECT/MODE SELECT EXTENDED command
Specify the format attributes on the disk with the MODE SELECT or MODE SELECT
EXTENDED command. The parameters are as follows.
a. Block descriptor
Specify the size (byte length) of the logical data block in the "data block length" field. To
explicitly specify the number of logical data blocks, specify the number in the "number of
data blocks" field. Otherwise, specify 0 in "number of data blocks" field. In this case, the
number of logical data blocks after initialization is determined by the value specified in the
format parameter (page code = 3) and drive parameter (page code = 4).
5 - 18
C141-E035-02EN
b. Format parameter (page code = 3)
Specify the number of spare sectors for each cylinder in the "alternate sectors/zone" field
and specify the number of tracks for alternate cylinders (= number of alternate cylinders ´
number of disk drive heads) in the "alternate tracks/zone" field. It is recommended not to
specify values smaller than the IDD default value in this field.
c. Drive parameter (page code = 4)
To explicitly specify the number of cylinders in the user space, specify the number in the
"number of cylinders" field. Note that the number of alternate cylinders specified by the
format parameter (page code = 3) is included in the number of cylinders in the user space.
When the number of cylinders need not be specified, specify 0 or the default value in the
"number of cylinders" field. In this case, either of the smaller value between the number
of cylinders to allocate the number of logical data blocks specified in the "number of data
blocks" field of the block descriptor or the maximum number of cylinders that can be used
as the user space on the disk drive is allocated in the user space. When 0 is specified both
in the "number of cylinders" field and the "number of data blocks" field of the block
descriptor, the maximum number of cylinders that can be used as the user space on the
disk drive is allocated in the user space.
(2)
FORMAT UNIT command
Initialize all sides of the disk with the FORMAT UNIT command. The FORMAT UNIT
command initializes all sides of the disk using the P lists, verifies data blocks after
initialization, and allocates an alternate block for a defect block detected with verification.
With initialization, the value "00" is written into all bytes of all logical data blocks. Only the
position information of defect blocks detected with verification is registered in the G list. The
specifications are as follows:
a. Specifying CDB
Specify 0 for the "FmtData" bit and the "CmpLst" bit on CDB, 000 for the "Defect List
Format" field, and data pattern written into the data block at initialization for the
"initializing data pattern" field.
b. Format parameter
When the values in step a. are specified with CDB, the format parameter is not needed.
C141-E035-02EN
5 - 19
5.6.4 Setting parameters
The user can specify the optimal operation mode for the user system environments by setting
the following parameters with the MODE SELECT or MODE SELECT EXTENDED
command:
·
·
·
·
Error recovery parameter
Disconnection/reconnection parameter
Caching parameter
Control mode parameter
With the MODE SELECT or MODE SELECT EXTENDED command, specify 1 for the "SP"
bit on CDB to save the specified parameter value on the disk. This enables the IDD to operate
by using the parameter value set by the user when power is turned on again. When the system
has more than one INIT, different parameter value can be set for each INIT.
When the parameters are not set or saved with the MODE SELECT or MODE SELECT
EXTENDED command, the IDD sets the default values for parameters and operates when
power is turned on or after reset. Although the IDD operations are assured with the default
values, the operations are not always optimal for the system. To obtain the best performance,
set the parameters in consideration of the system requirements specific to the user.
This section outlines the parameter setting procedures. Refer to Chapter 3 of SCSI Logical
Interface Specifications for further details of the MODE SELECT and MODE SELECT
EXTENDED commands and specifying the parameters.
IMPORTANT
1. At factory shipment of the IDD, the saving operation for the MODE
SELECT parameter is not executed. So, if the user does not set
parameters, the IDD operates according to the default value of each
parameter
2. The model select parameter is not saved for each SCSI ID of but as
the common parameter for all IDs. In the multi-INIT System,
parameter setting cannot be changed for each INIT.
3. Once parameters are saved, the saved value is effective as long as
next saving operation is executed from the INIT. For example, even if
the initialization of the disk is performed by the FORMAT UNIT
command, the saved value of parameters described in this section is
not affected.
4. When the IDD, to which the saving operation has been executed on a
system, is connected to another system, the user must pay attention to
that the IDD operates according to the saved parameter value if the
saving operation is not executed at installation.
5 - 20
C141-E035-02EN
5. The saved value of the MODE SELECT parameter is assumed as the
initial value of each parameter after the power-on, the RESET
condition, or the BUS DEVICE RESET message. The INIT can
change the parameter value temporary (actively) at any timing by
issuing the MODE SELECT or MODE SELECT EXTENDED
command with specifying "0" to the SP bit in the CDB.
(1)
Error recovery parameter
The following parameters are used to control operations such as IDD internal error recovery:
a. Read/write error recovery parameters (page code = 1)
Parameter
Default value
1 (enabled)
• ARRE:
Automatic alternate block allocation at read
operation
• TB:
Uncorrectable data transfer to the INIT
Immediate correction of correctable error
Report of recovered error
1 (enabled)
1 (enabled)
0 (disabled)
0 (Correction is
enabled.)
• EER:
• PER:
• DCR:
Suppression of ECC error correction
• Retry count at read operation
• Retry count at write operation
• Recovery time limit
63
0
30 sec
b. Verify error recovery parameters (page code = 7)
Parameter
Default value
• ERR:
• PER:
• DTE:
Immediate correction of recoverable error
Report of recovered error
Stop of command processing at successful
error recovery
1 (enabled)
0 (disabled)
0 (Processing is
continued.)
• DCR:
Suppression of ECC error correction
0 (Correction is
enabled.)
• Retry count at verification
63
c. Additional error recovery parameters (page code = 21)
Parameter
Default value
15
• Retry count at seek error
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5 - 21
Notes:
1. The user can arbitrarily specify the following parameters according to the system
requirements:
·
·
·
ARRE
TB
PER
2. The user also can arbitrarily specify parameters other than the above. However, it is
recommended to use the default setting in normal operations.
(2)
Disconnection/reconnection parameters (page code = 2)
The following parameters are used to optimize the start timing of reconnection processing to
transfer data on the SCSI bus at a read (READ or READ EXTENDED command) or write
operation (WRITE, WRITE EXTENDED, or WRITE AND VERIFY command) of the disk.
Refer to Chapter 2 of SCSI Logical Interface Specifications for further details.
a. Disconnection/reconnection parameters (page code = 2)
Parameter
Default value
20 (HEX)
• Buffer full ratio
• Buffer empty ratio
20 (HEX)
Notes:
1. In a system without the disconnection function, these parameters need not be
specified.
2. Determine the parameter values in consideration of the following performance factors
of the system:
·
·
·
Time required for reconnection processing
Average data transfer rate of the SCSI bus
Average amount of processing data specified with a command
Refer to Chapter 2 of SCSI Logical Interface Specifications for how to obtain the
rough calculation values for the parameter values to be set. It is recommended to
evaluate the validity of the specified values by measuring performance in an operation
status under the average system load requirements.
5 - 22
C141-E035-02EN
(3)
Caching parameters
The following parameters are used to optimize IDD Read-Ahead caching operations under the
system environments. Refer to Chapter 2 of SCSI Logical Interface Specifications for further
details.
a. Read caching parameters
Parameter
Default value
0 (enabled)
0 (disabled)
• RCD:
• WCE:
• MS:
Disabling Read-Ahead caching operations
Write Cache Enable
Specifying the multipliers of "minimum
prefetch" and "maximum prefetch"
parameters
0 (Specifying
absolute value)
• DISC:
Prefetch operation after track switching
during prefetching
0 (inhibit)
• Number of blocks for which prefetch is suppressed
• Minimum prefetch
X'FFFF'
X'0000'
• Maximum prefetch
X'0XXX'
(Equivalent to
122 KB)
• Number of blocks with maximum prefetch restrictions
• Number of segments
X'FFFF'
X'4'
Notes:
1. When Read-Ahead caching operations are disabled by the caching parameter, these
parameter settings have no meaning except write cache feature.
2. Determine the parameters in consideration of how the system accesses the disk.
When the access form is not determined uniquely because of the processing method,
the parameters can be re-set actively.
3. For sequential access, the effective access rate can be increased by enabling Read-
Ahead caching operations and Write Cache feature.
(4)
Control mode parameters
The following parameters are used to control the tagged queuing and error logging.
C141-E035-02EN
5 - 23
a. Control mode parameters
Parameter
• Queue algorithm modifier
Default value
0 (Ordering is
executed by read
command only.)
• QErr:
Resume or abort remaining suspended
commands after sense pending state
0 (command is
resumed)
• DQue:
Disabling tagged command queuing
0 (enabled)
5.7
Dismounting Drives
Since dismounting the drive to check the setting terminals, change the setting, or change the
drive depends on the structure of the system cabinet, the work procedures must be determined
in consideration of the requirements specific to the system. This section describes the general
procedures and notes on dismounting the drive.
CAUTION
1. Dismount the drive after disconnecting system power. Do not remove
mounting screws holding the cables and drive while power is on.
2. Do not move the drive until it completely stops (30 seconds after
spindle motor is stopped with START/STOP UNIT command or after
power is turned off).
a) Remove the power cable.
b) Remove the SCSI cable.
c) When the external operator panel is mounted, remove the cable. If it is difficult to access
the connector position, the cable may be removed after step e).
d) Remove the DC ground cable.
e) Remove the four mounting screws securing the drive, then remove the drive from the
system cabinet.
f) To store or transport the drive, keep it in an antistatic bag and provide packing (see Section
5.1).
5 - 24
C141-E035-02EN
CHAPTER 6
DIAGNOSTICS AND MAINTENANCE
6.1 Diagnostics
6.2 Maintenance Information
This chapter describes diagnostics and maintenance information.
6.1
Diagnostics
6.1.1 Self-diagnostics
The IDD has the following self-diagnostic function. This function checks the basic operations
of the IDD.
·
·
Initial self-diagnostics
Online self-diagnostics (SEND DIAGNOSTIC command)
Table 6.1 lists the contents of the tests performed with the self-diagnostics. For a general
check of the IDD including the operations of the host system and interface, use a test program
that runs on the host system (see Subsection 6.1.2).
Table 6.1
Self-diagnostic functions
C141-E035-02EN
6 - 1
Brief test contents of self-diagnostics are as follows.
a. Hardware function test
This test checks the basic operation of the controller section, and contains following test.
·
·
·
·
RAM (microcode is stored)
Peripheral circuits of microprocessor (MPU)
Memory (RAM)
Data buffer
b. Seek test
This test checks the positioning operation of the disk drive using several seek modes (2
points seek, 1 position sequential seek, etc.). The positioning operation is checked with
confirming the physical address information by reading the ID field (LBA) from the data
block on track 0 after completion of the seek operation to the target cylinder.
c. Write/read test
This test check the write/read function by using the Internal test space of the disk drive.
(1)
Initial self-diagnostics
When power is turned on, the IDD starts initial self-diagnostics. The initial self-diagnostics
checks the basic operations of the hardware functions.
If an error is detected in the initial self-diagnostics, the LED on the drive front panel blinks. In
this status, the IDD posts the CHECK CONDITION status to all I/O operation requests other
than the REQUEST SENSE command. When the CHECK CONDITION status is posted, the
INIT should issue the REQUEST SENSE command. The sense data obtained with the
REQUEST SENSE command details the error information detected with the initial self-
diagnostics.
Even if CHECK CONDITION status and sense data are posted, the LED continues blinking.
Only when the SCSI bus is reset, the BUS DEVICE RESET message is issued, or the power is
turned off or re-turned on, this status can be cleared. When this status is cleared, the IDD
executes the initial self-diagnosis again.
6 - 2
C141-E035-03EN
The IDD does not reply to the SCSI bus for up to 2 seconds after the initial self-diagnostics is
started. After that, the IDD can accept the I/O operation request correctly, but the received
command, except the executable commands under the not ready state (such as INQUIRY,
START/STOP UNIT), is terminated with the CHECK CONDITION status (NOT READY
[=2]/logical unit not ready [=04-00]) during the interval from the spindle motor becomes
stable to the IDD becomes ready. The executable command under the not ready state is
executed in parallel with the initial self-diagnostics, or is queued by the command queuing
feature and is executed after completion of the initial self-diagnostics. When the command
that comes under the exception condition of the command queuing is issued at that time, the
IDD posts the BUSY status for the command. When the error is detected during the initial
self-diagnostics, the CHECK CONDITION status is posted for all commands that were
stacked during the initial self-diagnostics. For the command execution condition, refer to
Section 1.4 and Subsection 1.7.4 in SCSI Logical Interface Specifications.
(2)
Online self-diagnostics (SEND DIAGNOSTIC command)
The INIT can make the IDD execute self-diagnostics by issuing the SEND DIAGNOSTIC
command.
The INIT specifies the execution of self-diagnostics by setting 1 for the SelfTest bit on the CDB in
the SEND DIAGNOSTIC command and specifies the test contents with the UnitOfl bit.
When the UnitOfl bit on the CDB is set to 0, the IDD executes the hardware function test only
once. When UnitOfl bit is set to 1, the IDD executes the hardware function test, seek
(positioning) test, and data write/read test for the Internal test space only once.
a. Error recovery during self-diagnostics
During the self-diagnostics specified by the SEND DIAGNOSTIC command, when the
recoverable error is detected during the seek or the write/read test, the IDD performs the
error recovery according to the MODE SELECT parameter value (read/write error recovery
parameter, additional error recovery parameter) which the INIT specifies at the time of
issuing the SEND DIAGNOSTIC command.
PER
0
Operation of self-diagnostics
The self-diagnostics continues when the error is recovered. The self-
diagnostics terminates normally so far as the unrecoverable error is not
detected.
1
The self-diagnostics continues when the error is recovered. If the
unrecoverable error is not detected, the consecutive tests are executed till
last test but the self-diagnostics terminates with error. The error
information indicates that of the last recovered error.
b. Reporting result of self-diagnostics and error indication
When all specified self-diagnostics terminate normally, the IDD posts the GOOD status for
the SEND DIAGNOSTIC command.
C141-E035-03EN
6 - 3
When an error is detected in the self-diagnostics, the IDD terminates the SEND
DIAGNOSTIC command with the CHECK CONDITION status. At this time only when
an error is detected in the hardware function test, the LED on the front panel of the disk
drive blinks.
The INIT should issue the REQUEST SENSE command when the CHECK CONDITION
status is posted. The sense data collected by the REQUEST SENSE command indicates
the detail information of the error detected in the self-diagnostics.
The IDD status after the CHECK CONDITION status is posted differs according to the
type of the detected error.
a) When an error is detected in the seek or write/read test, the subsequent command can
be accepted correctly. When the command other than the REQUEST SENSE and NO
OPERATION is issued from the same INIT, the error information (sense data) is
cleared.
b) When an error is detected in the hardware function test, the IDD posts the CHECK
CONDITION status for all I/O operation request except the REQUEST SENSE
command. The error status is not cleared and the LED on the front panel continues
blinking even if the error information (sense data) is read. Only when the SCSI bus is
reset, the BUS DEVICE RESET message is issued or the power is turned off or re-
turned on, the status can be cleared. When this status is cleared, the IDD executes the
initial self-diagnostics again (see item (1)).
Refer to Chapter 3 of SCSI Logical Interface Specifications for further details of the
command specifications.
Notes:
When the SEND DIAGNOSTIC command terminates with the CHECK CONDITION
status, the INIT must collect the error information using the REQUEST SENSE command.
The RECEIVE DIAGNOSTIC RESULTS command cannot read out the error information
detected in the self-diagnostics.
6.1.2 Test programs
The basic operations of the IDD itself can be checked with the self-diagnostic function.
However, to check general operations such as the host system and interface operations in a
status similar to the normal operation status, a test program that runs on the host system must
be used.
The structure and functions of the test program depend on the user system requirements.
Generally, it is recommended to provide a general input/output test program that includes
SCSI devices connected to the SCSI bus and input/output devices on other I/O ports.
Including the following test items in the test program is recommended to test the IDD
functions generally.
6 - 4
C141-E035-02EN
(1)
(2)
(3)
(4)
6.2
Interface (SCSI bus) test
The operations of the SCSI bus and data buffer on the IDD are checked with the WRITE
BUFFER and READ BUFFER commands.
Basic operation test
The basic operations of the IDD are checked by executing self-diagnosis with the SEND
DIAGNOSTIC command (see Subsection 6.1.1).
Random/sequential read test
The positioning (seek) operation and read operation are tested in random access and sequential
access modes with the READ, READ EXTENDED, or VERIFY command.
Write/read test
By using a data block in the internal test space, the write/read test can be executed with an
arbitrary pattern for a disk drive in which user data is stored.
Maintenance Information
6.2.1 Maintenance requirements
(1)
Preventive maintenance
Preventive maintenance such as replacing air filters is not required.
CAUTION
Do not open the DE in the field because it is completely sealed.
(2)
Service life
The service life under suitable conditions and treatment is as follows. The service life is
depending on the environment temperature. Therefore, the user must design the system
cabinet so that the average DE surface temperature is as possible as low.
·
·
·
·
DE surface temperature: 45°C or less
DE surface temperature: 46°C to 50°C
DE surface temperature: 51°C to 55°C
DE surface temperature: 56°C and more
surface
5 years
4 years
3 years
strengthen cooling power so that DE
temperature is 55°C or less.
Even if the IDD is used intermittently, the longest service life is 5 years.
C141-E035-02EN
6 - 5
Note:
The "average DE surface temperature" means the average temperature at the DE surface
throughout the year when the IDD is operating.
(3)
(4)
Parts that can be replaced in the field
The PCA cannot be replaced in the field. The DE cannot be replaced in the field.
Service system and repairs
Fujitsu has the service system and repair facility for the disk drive. Contact Fujitsu
representative to submit information for replacing or repairing the disk drive. Generally, the
following information must be included:
a) IDD model, part number (P/N), revision number, serial number (S/N), and date of
manufacturing
b) Error status
·
·
·
Date when the error occurred
System configuration
Environmental conditions (temperature, humidity, and voltage)
c) Error history
d) Error contents
·
·
·
·
Outline of inconvenience
Issued commands and specified parameters
Sense data
Other error analysis information
CAUTION
Save data stored on the disk drive before requesting repair.
Fujitsu does not assume responsibility if data is destroyed during
servicing or repair.
6 - 6
C141-E035-02EN
See Section 5.1 for notes on packing and handling when returning the disk drive.
6.2.2 Revision numbers
The revision number of the disk drive is represented with a letter and a number indicated on
the revision label attached to the DE. Figure 6.1 shows the revision label format.
Machine revision
Figure 6.1 Revision label
(1)
(2)
Indicating revision number at factory shipment
When the disk drive is shipped from the factory, the revision number is indicated by deleting
numbers in the corresponding letter line up to the corresponding number with = (see Figure
6.2).
Changing revision number in the field
To change the revision number because parts are replaced or other modification is applied in
the field, the new level is indicated by enclosing the corresponding number in the
corresponding letter line with (see Figure 6.2).
Note:
When the revision number is changed after the drive is shipped from the factory, Fujitsu
issues "Engineering Change Request/Notice" in which the new revision number is
indicated. When the user changes the revision number, the user should update the revision
label as described in item (2) after applying the modification.
C141-E035-02EN
6 - 7
At shipment
Rev. A2
Revising at field
Rev. A3
Figure 6.2 Indicating revision numbers
6 - 8
C141-E035-02EN
APPENDIX A LOCATIONS OF CONNECTORS,
SETTING TERMINALS, AND
TERMINATING RESISTORS
A.1 Locations of Connectors and Setting Terminals
(MAx3xxxSC: SCA2 type 16-bit SCSI)
A.2 Locations of Connectors and Setting Terminals
(MAx3xxxSP: single-ended type 16-bit SCSI)
This appendix shows the locations of connectors, setting terminals, and terminating resistor for 8- and
16-bit SCSIs.
C141-E035-02EN
A - 1
A.1
Locations of Connectors and Setting Terminals
(MAx3xxxSC: SCA2 type 16-bit SCSI)
CN1
(Viewed from bottom side)
(Rear view)
(MAA31xxSC)
Pin 80
Pin 41
4.6±0.5
Pin 1
Pin 40
(Rear view)
(MAB30xxSC)
Pin 80
Pin 41
Pin 1
4.6±0.5
Pin 40
Figure A.1 Locations of connectors and setting terminals
(MAx3xxxSC, SCA2 type 16-bit SCSI)
A - 2
C141-E035-02EN
A.2
Locations of Connectors and Setting Terminals
(MAx3xxxSP : single-ended type 16-bit SCSI)
CN6
1
6
CN1
15/16
CN7
1/2
(Viewed from bottom side)
(MAA31xxSP)
(Rear View)
Pin A11
Pin 1
Pin 1
Pin A1
Pin 34
Pin 68
Pin 35
Pin A2
Pin A12
SCSI connector (CN1)
Connector for external operator panel
SCSI connector (CN1)
(Rear view)
(MAB31xxSP)
Pin A1
Pin A11
Pin 34
Pin 68
Pin 1
Pin 1
Pin 35
Pin A2
Pin A12
SCSI connector (CN1)
Connector for external operator panel
SCSI connector (CN1)
Figure A.2 Locations of connectors and setting terminals
(MAx3xxxSP, single-ended type 16-bit SCSI)
C141-E035-02EN
A - 3
APPENDIX B SETTING TERMINALS
B.1 Setting Terminals
(MAx3xxxSP : Single-ended 16-bit SCSI)
This appendix describes setting terminals.
C141-E035-01EN
B - 1
B.1
Setting Terminals (MAx3xxxSP : Single-ended 16-bit SCSI)
Table B.1 Setting terminal: CN6 (MAx3xxxSP)
Pins
Setting item
Setting contents
5-6
3-4
1-2
Open Does not supply terminating resistor power to SCSI
bus
Terminal power
supply
Short Supplies terminating resistor power to SCSI bus (*1)
Started by the START/STOP UNIT command
Started by turning the power supply on (*1)
Disconnects terminating resistor circuit
Motor start mode
Open
Short
Connection of
terminating
resistor circuit on
SCSI interface
Open
Short
Connects terminating resistor circuit (*1)
Note:
See the description in Section 5.3 for details of the setting requirements and notes.
B - 2
C141-E035-01EN
Table B.2 Setting terminal: CN7 (MAx3xxxSP)
Setting item
SCSI ID
Pins
5 - 6
Setting contents
13 - 14
7 - 8
3 - 4
Open
Open
Short
Short
Open
Open
Short
Short
Open
Open
Short
Short
Open
Open
Short
Short
1 - 2
(Open) Open
(Open) Open
(Open) Open
(Open) Open
(Open) Short
(Open) Short
(Open) Short
(Open) Short
Open SCSI ID #0
Short SCSI ID #1
Open SCSI ID #2
Short SCSI ID #3
Open SCSI ID #4
Short SCSI ID #5
Open SCSI ID #6
Short SCSI ID #7
Open SCSI ID #8
Short SCSI ID #9
(Common to 8-bit and 16-bit SCSI)
(Common to 8-bit and 16-bit SCSI)
(Common to 8-bit and 16-bit SCSI)
(Common to 8-bit and 16-bit SCSI)
(Common to 8-bit and 16-bit SCSI)
(Common to 8-bit and 16-bit SCSI)
(Common to 8-bit and 16-bit SCSI)
(Common to 8-bit and 16-bit SCSI)
(16-bit SCSI only)
Short
Short
Short
Short
Short
Short
Short
Short
Open
Open
Open
Open
Short
Short
Short
Short
(16-bit SCSI only)
Open SCSI ID #10 (16-bit SCSI only)
Short SCSI ID #11 (16-bit SCSI only)
Open SCSI ID #12 (16-bit SCSI only)
Short SCSI ID #13 (16-bit SCSI only)
Open SCSI ID #14 (16-bit SCSI only)
Short SCSI ID #15 (16-bit SCSI only)
Write operation is enabled. (*1)
(*1)
Write protect
Open
Short
Write operation is disabled.
Note:
See the description of Section 5.3 for details of the setting requirements and notes.
C141-E035-01EN
B - 3
APPENDIX C CONNECTOR SIGNAL ALLOCATION
C.1 SCSI Connector Signal Allocation: SCA2 type 16-bit SCSI
C.2 SCSI Connector Signal Allocation: single-ended type
16-bit SCSI
This appendix describes the connector signal allocation.
C141-E035-02EN
C - 1
C.1
SCSI Connector Signal Allocation: SCA2 type 16-bit SCSI
Table C.1 SCSI connector (SCA2 type, 16-bit SCSI): CN1
Pin No.
Signal
+12V (Charge)
+12V
Signal
Pin No.
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
69
70
71
72
73
74
75
76
77
78
79
80
01
02
03
04
05
06
07
08
09
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
35
36
37
38
39
40
12V RETURN (GND)
12V RETURN (GND)
+12V
12V RETURN (GND)
+12V
12V RETURN (MATED 1)
Reserved (N.C.)
Reserved (N.C.)
–DB11
Reserved (N.C.)
Reserved (N.C.)
GND
–DB10
GND
–DB09
GND
–DB08
GND
–I/O
GND
–REQ
GND
–C/D
GND
–SEL
GND
–MSG
GND
–RST
GND
–ACK
GND
–BSY
GND
–ATN
GND
–DBP0
GND
–DB07
GND
–DB06
GND
–DB05
GND
–DB04
GND
–DB03
GND
–DB02
GND
GND
–DB01
–DB00
GND
–DBP1
GND
–DB15
GND
–DB14
GND
–DB13
GND
–DB12
GND
5V
5V RETURN (MATED 2)
5V RETURN (GND)
5V RETURN (GND)
–LED
5V
5V (Charge)
– SPINDLE SYNC
RMT START
SCSI ID0
SCSI ID2
DLYD START
SCSI ID1
SCSI ID3
C - 2
C141-E035-02EN
C.2
SCSI Connector Signal Allocation: single-ended type 16-bit SCSI
Table C.2 SCSI connector (single-ended type 16-bit SCSI): CN1
Pin No.
Signal
GND
Signal
–DB12
–DB13
–DB14
–DB15
–DBP1
–DB00
–DB01
–DB02
–DB03
–DB04
–DB05
–DB06
–DB07
–DBP0
GND
Pin No.
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
01
02
03
04
05
06
07
08
09
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
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
TERMPWR*
TERMPWR*
(Reserved)
GND
TERMPWR*
TERMPWR*
(Reserved)
GND
GND
–ATN
GND
GND
GND
–BSY
GND
–ACK
GND
–RST
GND
–MSG
–SEL
GND
GND
–C/D
GND
–REQ
GND
–I/O
GND
–DB08
–DB09
–DB10
–DB11
GND
GND
GND
*1 Power supply for the terminating resistor
C141-E035-01EN
C - 3
APPENDIX D MODEL NAMES AND PRODUCT NUMBERS
D.1 Model Names and Product Numbers
This appendix lists model names (types) and product numbers.
C141-E035-01EN
D - 1
D.1
Model Names and Product Numbers
Table D.1 MAA, MAB and MAC series model names and product numbers
Data block
length
(at factory
shipment)
Total
storage
capacity
(user area)
Model name
Mounting
screw
SCSI type
Ultra SCSI
Part number
Remarks
(type)
1.6-inch height
7,200 rpm
10 disks
MAA3182SP
MAA3182SC
MAB3091SP
MAB3091SC
MAB3045SP
MAB3045SC
MAC3091SP
MAC3091SC
MAC3045SP
MAC3045SC
16-bit SE
16-bit SE
16-bit SE
16-bit SE
16-bit SE
16-bit SE
16-bit SE
16-bit SE
16-bit SE
16-bit SE
512B
512B
512B
512B
512B
18.2 GB
9.1 GB
#6-32UNC CA01606-B922
CA01606-B962
19 heads
1-inch height
7,200 rpm
5 disks
#6-32UNC CA01606-B522
CA01606-B562
10 heads
1-inch height
7,200 rpm
3 disks
4.55 GB
9.1 GB
#6-32UNC CA01606-B322
CA01606-B362
5 heads
1-inch height
10,000 rpm
5 disks
#6-32UNC CA01682-B522
CA01682-B562
10 heads
1-inch height
10,000 rpm
3 disks
4.55 GB
#6-32UNC CA01682-B322
CA01682-B362
5 heads
Note:
Only above models are available currently.
SE: Single-ended
MAx3xxxSC uses SCA-2 type connector.
D - 2
C141-E035-03EN
APPENDIX E SCSI INTERFACE FUNCTIONS
E.1 SCSI interface function specifications
This appendix lists the SCSI interface functions provided for the IDD. Refer to the SCSI Logical
Interface Specifications for details of each functions.
C141-E035-02EN
E - 1
E.1
SCSI interface function specifications
Table E.1 SCSI interface function specifications (1 of 8)
: Provided ´ : Not provided
Item
COMMAND COMPLETE
SAVE DATA POINTER
RESTORE POINTERS
Specification
(00)
(02)
O
O
O
(03)
(TARG ® INIT)
(INIT ® TARG)
(04)
O
DISCONNECT
(04)
´
INITIATOR DETECTED ERROR
(05)
O
ABORT
(06)
O
MESSAGE REJECT
(07)
O
NO OPERATION
(08)
O
MESSAGE PARITY ERROR
LINKED COMMAND COMPLETE
LINKED COMMAND COMPLETE WITH FLAG
BUS DEVICE RESET
(09)
O
O
O
O
O
O
´
´
O
´
´
O
(0A)
(0B)
(0C)
(0D)
(0E)
(0F)
(10)
1-byte
length
message
ABORT TAG
CLEAR QUEUE
INITIATE RECOVERY
RELEASE RECOVERY
TERMINATE I/O PROCESS
CONTINUE I/O PROCESS
TARGET TRANSFER DISABLE
IDENTIFY
(11)
(12)
(13)
(80-FF)
Disconnect Privilege (DiscPriv) Bit
Logical Unit Target (LUNTAR) Bit
SIMPLE QUEUE TAG
O
´
O
O
(20)
(21)
2-byte
length
HEAD OF QUEUE TAG
ORDERED QUEUE TAG
IGNORE WIDE RESIDUE
message
(22)
O
(23)
O (16 bit-SCSI only)
Expansion MODIFY DATA POINTER
message
(01-00)
´
O
SYNCHRONOUS DATA TRANSFER REQUEST (01-01)
EXTENDED IDENTIFY
WIDE DATA TRANSFER REQUEST
UNIT ATTENTION
(01-02)
(01-03)
´
O (16 bit-SCSI only)
[VU] *(01-80)
[VU] *(01-81)
[VU] *(01-82)
´
´
´
HALT I/O
DIAGNOSTIC CONTROL
*1 Fujitsu-specific function
E - 2
C141-E035-02EN
Table E.1 SCSI interface function specifications (2 of 8)
: Provided ´ : Not provided
Item
Specification
TEST UNIT READY
REZERO UNIT
(00)
(01)
(03)
(04)
=0
O
O
O
O
REQUEST SENSE
FORMAT UNIT
FmtData (format data)
O
Interleave factor
O (No interleave)
Block address format defect listing
Block address format defect listing
=0
´
´
¹ 0
Byte-distance-from-index format defect listing =0
Byte-distance-from-index format defect listing ¹ 0
Physical sector address format defecting listing =0
Physical sector address format defecting listing ¹ 0
CmpLst (complete list)
O
O
O
O
O
FOV (Format Options Valid)
O
DPRY (Disable Primary)
O
O
Command
(Group 0)
DCRT (Disable Certification)
STPF (Stop Format)
´
IP (Initialization Pattern)
´
DSP (Disable Saving Parameters)
Immed (Immediate)
´
O
REASSIGN BLOCKS
(07)
(08)
(0A)
(0B)
(12)
O
O
O
O
READ
WRITE
SEEK
INQUIRY
O
EVPD (Enable Vital Product Data)
O
Typical INQUIRY data
VPD Page 0: VPD page code listing
VPD Page 80: Device serial number
VPD Page C0: Operation mode
READ DEVICE CHARACTERISTICS
PRIORITY RESERVE
O (64 byte long)
O
O
O
´
[VU] *(13)
[VU] *(14)
´
*1 Fujitsu-specific function
C141-E035-02EN
E - 3
Table E.1 SCSI interface function specifications (3 of 8)
: Provided ´ : Not provided
Item
Specification
MODE SELECT
(15)
O
PF=(page format)
O (Specified value
ignored)
Page 1: Read/write error recovery
O (12 B: Savable)
AWRE (Automatic Write Reallocation Enabled)
´ (Specified value
ignored)
ARRE (Automatic Read Reallocation Enabled)
O (Changeable)
O (Changeable)
O (Changeable)
O (Changeable)
O (Changeable)
TB
RC
(Transfer Block)
(Read Continuous)
EER (Enable Early Recovery)
PER (Post Error)
Command
(Group 0)
DTE (Disable Transfer on Error)
´ (Specified value
ignored)
DCR (Disable Correction)
Retry count at read
O (Changeable)
O (Changeable)
Correctable bit length
O (Not changeable)
Head offset count
´
Data strobe offset count
Retry count at write
´
O (Changeable)
O (Changeable)
O (16 B: Savable)
O (Changeable)
O (Changeable)
O (Not changeable)
´
Recovery processing time restriction
Page 2: Disconnection/reconnection
Buffer-full ratio
Buffer-empty ratio
Bus inactivity restriction
Disconnection time restriction
Connection time restriction
Maximum burst length
´
´
DTDC (data transfer disconnect control)
O (Changeable)
*1 Fujitsu-specific function
E - 4
C141-E035-02EN
Table E.1 SCSI interface function specifications (4 of 8)
: Provided ´ : Not provided
Item
MODE SELECT (command)
Page 3: Format parameter
Number of tracks/zone
Specification
(15)
O (24 B: Savable)
O (Not changeable)
O (Changeable)
O (Not changeable)
O (Not changeable)
O (Not changeable)
O (Changeable)
O (No interleave)
O (Not changeable)
O (Not changeable)
O (Not changeable)
O (Not changeable)
O (Not changeable)
O (24 B: Savable)
O (Changeable)
O (Not changeable)
´
Number of alternate sectors/zone
Number of alternate tracks/zone
Number of alternate tracks/drive
Number of alternate sectors/track
Data byte length/physical sector
Interleave factor
Track skew factor
Cylinder skew factor
SSEC/HSEC (Soft Sector/Head Sector)
RMB (Removable)
SURF (Surface)
Page 4: Drive parameter
Number of cylinders
Command
(Group 0)
Number of heads
“Write Precompensation” start cylinder
“Reduced Write Current” start cylinder
Drive step rate
´
´
Landing zone cylinder
´
RPL (Rotational Position Locking)
Rotational synchronization offset
Medium rotational speed
Page 7: Verify error recovery
EER (Enable Early Recovery)
PER (Post Error)
´
´
O (Not changeable)
O (12 B: Savable)
O (Changeable)
O (Changeable)
DTE (Disable Transfer on Error)
´ (Specified value
ignored)
DCR (Disable Correction)
Retry count at verification
Correctable bit length
O (Changeable)
O (Changeable)
O (Not changeable)
O (Not changeable)
Recovery processing time restriction
*1 Fujitsu-specific function
C141-E035-02EN
E - 5
Table E.1 SCSI interface function specifications (5 of 8)
: Provided ´ : Not provided
Item
MODE SELECT (continued)
Page 8: Caching parameter
DISC (discontinuity)
Specification
(15)
O (20 B: Savable)
O (Not changeable)
MS (Multiple Select)
´
WCE (Write Cache Enable)
RCD (Read Cache Disable)
Demand Read Retention Priority
Write Retention Priority
Prefetch suppression block count
Minimum prefetch
O (Changeable)
O (Changeable)
´
´
´
´
Maximum prefetch
O (Not changeable)
O (Not changeable)
O (Changeable)
´
Maximum prefetch restriction block count
Number of segments
Buffer segment size
Command
(Group 0)
Page A: Control mode page
O (8 B: Savable)
RLEC (Report Log Exception Condition)
´ (Specified value
ignored)
Queue Algorithm modifier
QErr (Queue Error management)
DQue (Disable Queuing)
O (Changeable)
O (Changeable)
O (Changeable)
´
EECA (Enable Extended Contingent
Allegiance)
RAENP (Ready AEN Permission)
UAAENP (Unit Attention AEN Permission)
EAENP (Error Attention AEN Permission)
Ready AEN Holdoff period
´
´
´
´
Page 21: Additional error recovery
RPR (Rounded Parameter Report)
Retry count at seek error
[VU] (*1)
O (4 B: Savable)
´
O (Changeable)
RESERVE
(16)
O
O
´
Third party reserve function
Extent reserve function
Reserve condition change function
(Superseding reserve)
O
*1 Fujitsu-specific function
E - 6
C141-E035-02EN
Table E.1 SCSI interface function specifications (6 of 8)
: Provided ´ : Not provided
Item
Specification
RELEASE
(17)
O
O
´
Third party reserve function
Extent reserve function
COPY
MODE SENSE
DBD (Disable Block Descriptor)
Page 0 (Non-Parameter Transfer)
START/STOP UNIT
(18)
´
(1A)
O
O
O
O
O
O
O
(1B)
Immed (Immediate)
RECEIVE DIAGNOSTIC RESULTS
SEND DIAGNOSTIC
Command
(Group 0)
(1C)
(1D)
PF (Page Format)
O (Specified value
ignored)
Self Test (Self Test)
O
´
DevOfl (Device Offline)
Unit Ofl (Unit Offline)
O
O
O
´
Page 0: Specifiable page code listing
Page 40: Logical/physical address conversion
Page 80: Mode setup state report
Page 81: Device-specific information
REVENT/ALLOW MEDIUM REMOVAL
SEARCH BLOCK HIGH
SEARCH BLOCK EQUAL
SEARCH BLOCK LOW
READ CAPACITY
[VU]*1
[VU]*1
´
(1E)
´
[VU]*1 (20)
[VU]*1 (21)
[VU]*1 (22)
(25)
´
´
Command
(Group 1)
´
O
O
O
O
O
O
´
PMI (Parial Medium Indicator)
READ EXTENDED
(28)
(2A)
(2B)
(2E)
WRITE EXTENDED
SEEK EXTENDED
WRITE & VERIFY
BytChk (Byte Check)
Command
(Group 0)
VERIFY
(2F)
O
O
´
Third party reserve function
SEARCH DATA HIGH
SEARCH DATA EQUAL
(30)
(31)
´
*1 Fujitsu-specific function
C141-E035-02EN
E - 7
Table E.1 SCSI interface function specifications (7 of 8)
: Provided ´ : Not provided
Item
Specification
SEARCH DATA LOW
(32)
(33)
(34)
(35)
(36)
(37)
´
´
´
O
´
O
O
O
O
´
SET LIMITS
PRE-FETCH
SYNCHRONIZE CACHE
LOCK/UNLOCK CACHE
READ DEFECT DATA
Block address format
Byte-distance-from-index format
Physical sector address format
COMPARE
(39)
(3A)
(3B)
COPY & VERIFY
WRITE BUFFER
´
Command
(Group 0)
O
O
O
O
O
O
O
O
O
O
O
O
´
O
O
O
O
´
´
´
O
O
O
O
Mode=‘000’ (Header & Data Mode)
Mode=‘001’ (Header & Data Mode with Address)
Mode=‘010’ (Data Mode)
Mode=‘100’ (Download Microcode)
Mode=‘101’ (Download Microcode and Save)
READ BUFFER
Mode=‘000’ (Header & Data Mode)
(3C)
Mode=‘001’ (Header & Data Mode with Address)
Mode=‘010’ (Data Mode)
Mode=‘011’ (Descriptor Mode)
READ LONG
CORRCT (Corrected)
WRITE LONG
(3E)
(3F)
(40)
(41)
CHANGE DEFINITION
WRITE SAME
LBdata (Logical Block Data)
LBdata (Physical Block Data)
LOG SELECT
(4C)
(4D)
(55)
(56)
(57)
(5A)
Command
(Group 2)
LOG SENSE
MODE SELECT EXTENDED
RESERVE EXTENDED
RESERVE EXTENDED
MODE SENSE EXTENDED
*1 Fujitsu-specific function
E - 8
C141-E035-02EN
Table E.1 SCSI interface function specifications (8 of 8)
: Provided ´ : Not provided
Item
DIAGNOSTIC WRITE DATA
DIAGNOSTIC READ DATA
FORMAT ID
Specification
[VU] (*1) (C1)
[VU] (*1) (C2)
[VU] (*1) (C4)
[VU] (*1) (C6)
[VU] (*1) (C8)
[VU] (*1) (CA)
[VU] (*1) (CD)
[VU] (*1) (CE)
[VU] (*1) (D1)
[VU] (*1) (D2)
[VU] (*1) (D8)
[VU] (*1) (DA)
´
´
´
´
´
´
´
´
´
´
´
´
SPACE ID & READ DATA
DISPLACED ID
READ ID
Command
(Group 6) DIAGNOSTIC FORMAT ID
DIAGNOSTIC READ ID
WRITE RAM
READ RAM
RECOVER DATA
RECOVER ID
Defective sector slip processing function
O
O
´
O
O
Command link function
Relative block addressing function
Untagged queuing function
Tagged command queuing function
Contingent Allegiance (CA)
O (Sense held for each
Command
(Group 6)
INIT)
Extended Contingent Allegiance (ECA)
´
´
Asynchronous condition notification feature
(AEN: async. event notification)
Read-ahead cache feature
Cache control feature
DPO (disable page out)
FUA (force unit access)
Write cache feature
GOOD
O
´
´
´
O
O
O
O
O
O
O
O
O
O
´
(00)
(02)
(04)
(08)
(10)
(14)
(18)
(22)
(28)
CHECK CONDITION
CONDITION MET
BUSY
Status
INTERMEDIATE
INTERMEDIATE CONDITION MET
RESERVATION CONFLICT
COMMAND TERMINATED
QUEUE FULL
Non-extended format
Extended format
Sense data
O (48 bytes long)
O (Rev. 4.b)
CCS (common command set) conformity
*1 Fujitsu-specific function
C141-E035-02EN
E - 9
Index
– SYNC 4-19
Command queuing feature 1-3
Compactness 1-2
Confirming Operations after Installation for use
5-13
– Spindle Sync 4-19
16-bit SCSI 1-2, 4-15, 5-7
8-bit SCSI 1-2
Confirming initial operations 5-13
Connection of terminating resistor 5-9
Connection requirements 4-14
Connections 5-3
Connector signal Allocation C-2
Connector signal allocation C-1
Connectors of terminals location 4-14, 4-22
Contact start/stop 1-8
Continuous block processing 1-3
Control mode parameters 5-23
Controller circuit 1-9
Current waveform 4-11
Cylinder configuration 3-1, 3-2
Cylinder skew 3-7
A
AC noise filter 4-14
Actuator 1-9
Additional error recovery parameters 5-21
Addressing of peripheral device 1-11
Air circulation 1-9
Air pressure adjustment hole 4-10
Allowable input current 4-12
Allowable input voltage 4-12
Alternate area 3-11
Alternate block allocation 3-12, 3-13, 3-14
Alternate cylinder 3-5
Alternate sector treatment 3-13
Alternate spare area 3-5
D
Atitute 2-4
Automatic alternate block allocation 3-16
Automatic alternate block reassignment 1-4
Average DE surface temperature 2-6
D list 3-12
DC ground 4-27
DE 1-9
DISCON 4-20
B
Data field 3-8
Data format 3-1
Data security at power-failure 2-6
Data space 3-1
Default 5-10
Defect Management 3-12
Defect list 3-12
Defective block slipping 1-4
Delivery 5-2
Diagnosis 1-4
BCRC 3-9
Basic operation test 6-5
Block address of user space 3-11
Block descriptor 5-18
Block descriptor 5-18
Breather filter 1-9
C
C list 3-12
Diagnostics 6-1
CE space 3-5
CN1 4-16, C-2, C-3
CN6 B-2
CN7 4-17, B-3
Diagnostics and maintenance 6-1
Disable terminator connection 4-20
Disconnecting drives 5-24
Disconnection 5-22
Disk configuration 1-8
Disk enclosure 1-9
Disks 1-5
CSS 1-8
Cable connection 4-21
Cable connection requirements 4-24
Cable length 4-26
Caching parameters 5-23
Changing revision number at factory shipment 6-
7
Drive parameter 5-19
Drive parameter 5-19
E
Check before mounting 5-11
Check items at illegal operation 5-14
Checking SCSI connection 5-15, 5-16, 5-17
Checking at abnormal end 5-18
Checking procedure 5-15
ECC 3-9
Environmental requirements 2-4
Environmental specifications 2-4
Environmental temperature 4-8
C141-E035-03EN
IN-1
Error indication of self-diagnostics 6-3
Error rate 2-5
Error recovery 1-4
Error recovery during self-diagnostics 6-3
Error recovery parameters 5-21
External dimensions 4-1, 4-2, 4-3, 4-4, 4-5
External inputs for operating terminating resistor
4-20
Limitation of side-mounting 4-6
Location of connector A-2
Logical data block addressing 3-11
Low noise 1-5
Low power consumption 1-5
Low vibration 1-5
M
External magnetic field 4-9
MODE SELECT EXTENDED command 5-18
MODE SELECT command 5-18
MPU 1-8
MR 1-8
MTBF 2-5
External operator panel 4-27, 4-28
External operator panel circuit example 4-28
External operator panel connector 4-16, 4-17
External operator panel connector signals 4-18
MTTR 2-5
F
Magnet - Resistive 1-8
Maintenance information 6-5
Maintenance requirements 6-5
Microcode downloading 1-8
Microprocessing unit 1-9
Mode setting 5-8
FG 4-27
FORMAT UNIT command 5-19
Format capacity 3-10
Format parameter 5-19
Formatting 2-6
Function specifications 2-2
Mode settings 5-10
Model name 2-1, D-1, D-2
Motor start mode 5-8
G
Motor start mode setting 5-8
Mounting drives 5-11
Mounting frame structure 4-6
Mounting orientation 4-6
Mounting procedure 5-11
Mounting requirements 4-1
G list 3-12
G1 3-8
Gaps 3-8
General description 1-1
General notes 5-1
General notes 5-1
N
H
Noise filter 4-13
Notes on mounting 4-6
Hardware function test 6-2
Head configuration 1-8
Heads 1-8
High speed data transfer 1-2
High speed positioning 1-4
Humidity 2-4
O
Online self-diagnostics 6-3
Outer view 1-5, 1-6, 1-7
Output signal 4-19
I
Output signal for external LED 4-19
Indicating revision number 6-7
Initial self-diagnostics 6-2
Input signal 4-19, 4-20
Installation 5-1, 5-2
P
PAD 1 3-9
PAD 2 3-9
Installation requirements 4-1
Inteface connector 4-15
Interface test 6-5
PAD 3 3-9
PLO sync 3-8
PR4ML 1-8
Internal test space 3-4
Packaging 5-2
Partial response class 4 maximum likelihood 1-9
Parts that can be replaced in the field 6-6
Physical sector allocation 3-6
Positioning error rate 2-5
Power cable 4-27
L
LBA 3-8
LUN 1-11
Large capacity 1-4
Leak magnetic flux 4-9
Power on/off sequence 4-11, 4-12
Power requirements 2-4, 4-11
IN-2
C141-E035-03EN
Power supply 4-15
Power supply connector 4-15, 4-16, 4-23
Prefetches 1-3
Preparating after Installation for use 5-13
Preventive maintenance 6-5
Product number 2-1
Programmable data block length 1-4
Programmable multi-segment data buffer 1-3
Setting SCSI terminal 5-8
Setting SCSI terminal power supply 5-8
Setting check list 5-11
Setting parameters 5-20
Setting terminals 5-5, 5-6, B-1, B-2
Setting terminals position 5-5
Shock 2-4
Spare sector 3-5
Specifications 2-1
R
Specifying CDB 5-19
Spindle motor 1-8
Standard features 1-2
Start/Stop of spindle motor 1-4
Storage 5-2
Structure 1-5
Surface temperature check point 4-8
Surface temperature measurement points 4-8
Sync byte 3-8
System configuration 1-10
System space 3-4
Random read test 6-5
Read circuit 1-9
Read-ahead cache feature 1-3
Read/write error recovery parameter 5-21
Recirculation filter 1-9
Recommended components for connection
21, 4-24
Reconnection parameter 5-22
Release function 1-3
Reliability 2-5
4-
Reporting result of self-diagnostics 6-3
Reserve function 1-3
T
Revision label 6-7
TERMON 4-20
Revision numbers 6-7
TRNG 3-8
Temperature 2-4
Terminating resistor setting 5-9
Terminator on 4-20
Test programs 6-4
Track capacity 3-3
Track format 3-6
Track skew 3-7
S
SA space 3-4
SB 3-8
SCA2 type SCSI model 4-22
SCSI ID 1-11
SCSI ID external input 4-18
SCSI bus configuration 1-10
SCSI bus connection 5-3
SCSI bus test 6-5
Trainig 3-8
U
SCSI cable 4-25
Unpackaging
SCSI cable connector 4-25
SCSI cable requirements 4-26
SCSI cable termination 4-27
SCSI connector 4-15
Unrecoverable error rate 2-5
User space 3-4
V
SCSI connector 4-23
Verify error recovery parameters 5-21
Vibration 2-4
SCSI function specifications 2-7
SCSI interface functions E-1
SCSI interface functions specifications E-2
SCSI/CCS standard 1-2
SG 4-27
W
Wide range 1-5
SG terminal 4-16
Write circuit 1-9
Sector format 3-8
Sector slip treatment 3-12
Seek test 6-2
Write protect 5-9
Write protect setting 5-9
Write/read test 6-2
Self-diagnostics 6-1
Sequential read test 6-5
Sequential starting of spindle motor 4-13
Service clearance area 4-9
Service life 2-6, 6-5
Z
Zone layout 3-3
Service system and repairs 6-6
C141-E035-03EN
IN-3
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