MAF3364FC SERIES
MAG3182FC, MAG3091FC SERIES
DISK DRIVES
FIBRE CHANNEL INTERFACE
PRODUCT MANUAL
C141-E078-02EN
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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
damage 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 No. Revision (ASCII)
READ RAM Command
WRITE RAM Command
These commands cannot be used in the current version.
(Proceed to the Copyright Page)
C141-E078-02EN
iii
Related Standards
Specifications and functions of products covered by this manual comply with the following
standards.
Standard (Text) No.
Name
Enacting Organization
NCITS TR-19
FIBRE CHANNEL PRIVATE LOOP
SCSI DIRECT ATTACH (FC-PLDA)
American National
Standards Institute
(ANSI)
ANSI
ANSI
ANSI
ANSI
X3.230-1994
X3.297-1996
X3.272-199X
X3.269-199X
FIBRE CHANNEL PHYSICAL AND
SIGNALING INTERFACE (FC-PH)
American National
Standards Institute
(ANSI)
FIBRE CHANNEL PHYSICAL AND
SIGNALING INTERFACE-2 (FC-PH-2) Standards Institute
(ANSI)
American National
FIBRE CHANNEL ARBITRATED
LOOP (FC-AL)
American National
Standards Institute
(ANSI)
FIBRE CHANNEL PROTOCOL FOR American National
SCSI (SCSI-FCP)
Standards Institute
(ANSI)
All Right Reserved, Copyright © 2000 Fujitsu Limited
iv
C141-E078-02EN
PREFACE
This manual describes the MAF3364FC, MAG3182FC and MAG3091FC (hereafter, MAG series) series
3.5-inch fixed disk drives with an embedded fibre-channel 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.
Chapter 1
GENERAL DESCRIPTION
This chapter introduces the MAF3364FC and MAG series disk drives and discusses their standard
features, hardware, and system configuration.
Chapter 2
SPECIFICATIONS
This chapter gives detailed specifications of the MAF3364FC and MAG 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 MAF3364FC and
MAG series disk drives.
Chapter 5
INSTALLATION
This chapter explains how to install MAF3364FC and MAG series disk drives. It includes the notice and
procedures for setting device number and operation modes, mounting the disk drive, and confirming drive
operation.
Chapter 6
DIAGNOSIS and MAINTENANCE
This chapter describes the automatic diagnosis, and maintenance of the MAF3364FC and MAG series
disk drives.
APPENDICES A to D
The appendixes give supplementary information, including the locations of mounting connectors, a list of
setting items, the signal assignments of interface connectors, lists of model names and product numbers,
and SCSI interface functions.
Glossary
Abbreviations
C141-E078-02EN
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” or 010b
vi
C141-E078-02EN
DISCLAIMER
Failure of the MAF3364FC and MAG 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 this disk drive varies depending on the two device types and storage
capacity (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 AF 3 182 FC
Interface types
FC: Fibre-channel
Formatted capacity (100 MB units)
Disk size
Type
3: 3 inch
AF: Full height (10,025 rpm)
AG: 1-inch height (10,025 rpm)
Note 2:
Type model name
Type model name
MAF3364
Model name
MAF3364FC
MAG3182FC
MAG3091FC
MAG3182
MAG3091
C141-E078-02EN
vii
SAFETY PRECAUTIONS
List of Important Precautions
This manual includes the following important precautions:
CAUTION
Indicates that either minor or moderate personal injury may occur or may cause
damages to this product itself or property of other users if the user does not perform
the procedure correctly.
Work division
Precaution
Page
4-8
Assembly/installation
Damage to drive
A hole or screw portion as shown in Figure 4.8 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.
Damage
5-15
1. When dismounting the drive which is mounted on the system while
power is supplied to it.
•
The drive to be dismounted must be separated from the loop.
Dismounting the drive which is not separated from the loop may
cause an unexpected error.
•
•
If the drive is not separated from the loop, issue an LPB to the
drive from the initiator in a primitive sequence of the order set.
It is recommended to stop the spindle motor prior to this loop
separation operation. The spindle motor can be stopped by a
START/STOP command. It takes about 30 seconds for the
spindle motor to stop completely.
•
Then, dismount the drive using the drive mounting/dismounting
mechanism, etc. of the system. If the drive is dismounted while
the spindle motor is running, special care is required to avoid
excessive vibration or shock to the drive. It is recommended to
stop the operation once the SCA connector breaks off contact
and wait until the spindle motor stops (about 30 seconds) before
dismount the drive.
•
When storing or transporting the drive, put it in an antistatic
bag. (Shown in Section 5.1).
2. When dismounting the drive which is mounted on the system while
power is not supplied to it
•
Do not move the drive until the drive stops completely (about 30
seconds if the spindle motor was stopped by a START/STOP
UNIT command, and about 30 seconds after powering-off when
the power was simply turned off).
•
•
Then, dismount the drive using the drive mounting/dismounting
mechanism, etc. of the system.
When storing or transporting the drive, put it in an antistatic
bag. (Shown in Section 5.1).
viii
C141-E078-02EN
Work division
Precaution
Page
6-4
Data loss
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.
Damage
6-5
6-6
Do not open the DE in the field because it is completely sealed.
Data loss
Save data stored on the disk drive before requesting repair. Fujitsu does
not assume responsibility if data is destroyed during servicing or repair.
C141-E078-02EN
ix
MANUAL ORGANIZATION
FIBRE CHANNEL
INTERFACE
PRODUCT
1. General Description
2. Specifications
3. Data Format
MANUAL
4. Installation Requirements
5. Installation
(This manual)
6. Diagnostics and Maintenance
FIBRE CHANNEL
INTERFACE
1. Fibre Channel Interface
2. Command Processing
SPECIFICATIONS
3. Data Buffer Management
4. Command Specification
5. Sense Data and Error Recovery Procedure
6. Disk Medium Management
FIBRE CHANNEL
INTERFACE
MAINTENANCE
MANUAL
1. Specifications and Equipment Configuration
2. Maintenance and Diagnostic
3. Error Analysis
4. Removal and Replacement Procedures
5. Principle of Operation
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C141-E078-02EN
CONTENTS
page
GENERAL DESCRIPTION.............................................................................1-1
CHAPTER 1
1.1
1.2
1.3
Standard Features.............................................................................................................1-2
Hardware Structure ..........................................................................................................1-5
System Configuration.......................................................................................................1-8
CHAPTER 2
SPECIFICATIONS...........................................................................................2-1
2.1
Hardware Specifications...................................................................................................2-1
Model name and part number...........................................................................................2-1
Function specifications.....................................................................................................2-2
Environmental specifications ...........................................................................................2-4
Error rate .........................................................................................................................2-5
Reliability ........................................................................................................................2-5
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
CHAPTER 3
DATA FORMAT..............................................................................................3-1
3.1
Data Space.......................................................................................................................3-1
Cylinder configuration .....................................................................................................3-1
Alternate spare area .........................................................................................................3-4
Track format ....................................................................................................................3-5
Sector format ...................................................................................................................3-7
Format capacity................................................................................................................3-9
Logical Data Block Addressing........................................................................................3-10
Defect Management .........................................................................................................3-11
Defect list.........................................................................................................................3-11
Alternate block allocation.................................................................................................3-11
3.1.1
3.1.2
3.1.3
3.1.4
3.1.5
3.2
3.3
3.3.1
3.3.2
CHAPTER 4
INSTALLATION REQUIREMENTS .............................................................4-1
4.1
Mounting Requirements...................................................................................................4-1
External dimensions.........................................................................................................4-1
Mounting.........................................................................................................................4-4
Notes on mounting...........................................................................................................4-4
Power Supply Requirements.............................................................................................4-10
Connection Requirements ................................................................................................4-11
Connector ........................................................................................................................4-11
4.1.1
4.1.2
4.1.3
4.2
4.3
4.3.1
C141-E078-02EN
xi
4.3.2
4.3.3
Interface connector...........................................................................................................4-12
Recommended components for connection .......................................................................4-12
CHAPTER 5
INSTALLATION..............................................................................................5-1
5.1
Notes on Handling Drives ................................................................................................5-1
Setting .............................................................................................................................5-3
Loop ID setting ................................................................................................................5-3
Mode settings...................................................................................................................5-3
Mounting Drives..............................................................................................................5-4
Mounting procedures .......................................................................................................5-4
Confirming Operations after Installation and Preparation for Use ....................................5-5
Confirming initial operations ...........................................................................................5-5
Checking connection........................................................................................................5-6
Formatting.......................................................................................................................5-9
Setting parameters ...........................................................................................................5-10
Dismounting Drive...........................................................................................................5-15
5.2
5.2.1
5.2.2
5.3
5.3.1
5.4
5.4.1
5.4.2
5.4.3
5.4.4
5.5
CHAPTER 6
DIAGNOSTICS AND MAINTENANCE.........................................................6-1
6.1
Diagnostics ......................................................................................................................6-1
Self-diagnostics................................................................................................................6-1
Test programs ..................................................................................................................6-4
Maintenance Information.................................................................................................6-5
Maintenance requirements ...............................................................................................6-5
Revision numbers.............................................................................................................6-7
6.1.1
6.1.2
6.2
6.2.1
6.2.2
APPENDIX A LOCATIONS OF CONNECTORS..................................................................A-1
A.1 Locations of Connectors...................................................................................................A-2
APPENDIX B CONNECTOR SIGNAL ALLOCATION .......................................................B-1
B.1 Interface (FC-SCA) Connector Signal Allocation.............................................................B-2
APPENDIX C MODEL NAMES AND PRODUCT NUMBERS ............................................C-1
C.1 Model Names and Product Numbers.................................................................................C-2
APPENDIX D FIBRE CHANNEL INTERFACE FUNCTIONS ............................................D-1
D.1
Fibre Channel Interface Function Specifications...............................................................D-2
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C141-E0782EN
Glossary........................................................................................................................................GL-1
Abbreviations...............................................................................................................................AB-1
C141-E078-02EN
xiii
FIGURES
page
1.1
1.2
1.3
1.4
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
5.1
5.2
6.1
6.2
A.1
MAF3364FC outer view...................................................................................................1-5
MAG series outer view.....................................................................................................1-5
Disk/head configuration ...................................................................................................1-6
FC-AL system configuration ............................................................................................1-8
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 ...................................................................................................................3-7
Alternate block allocation by FORMAT UNIT command .................................................3-13
Alternate block allocation by REASSIGN BLOCKS command.........................................3-14
External dimensions (MAF3364FC).................................................................................4-2
External dimensions (MAG series)...................................................................................4-3
IDD orientation................................................................................................................4-4
Mounting frame structure.................................................................................................4-5
Limitation of side-mounting.............................................................................................4-6
Surface temperature measurement points..........................................................................4-7
Service clearance area ......................................................................................................4-8
Air pressure adjustment hole............................................................................................4-9
Current waveform (+12 VDC)..........................................................................................4-10
AC noise filter (recommended) ........................................................................................4-11
Connector location of SCA2 type interface model.............................................................4-11
SCA2 type interface connector .........................................................................................4-12
Checking the IDD connection (A)....................................................................................5-7
Checking the IDD connection (B) ....................................................................................5-8
Revision label...................................................................................................................6-7
Indicating revision numbers.............................................................................................6-8
Locations of connectors................................................................................................................A-2
xiv
C141-E078-02EN
TABLES
page
2.1
2.2
3.1
3.2
3.3
4.1
5.1
6.1
B.1
C.1
D.1
Function specifications.....................................................................................................2-2
Environmental/power requirements..................................................................................2-4
Zone layout and track capacity (MAF3364FC) .................................................................3-3
Zone layout and track capacity (MAG series) ...................................................................3-3
Format capacity................................................................................................................3-9
Surface temperature check point.......................................................................................4-7
Motor start mode..............................................................................................................5-3
Self-diagnostic functions..................................................................................................6-1
FC-SCA connector: CN1.................................................................................................B-2
MAF and MAG series model names and product numbers ...............................................C-2
Fibre channel interface function specifications .................................................................D-2
C141-E078-02EN
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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).
MAF3364FC and MAG series intelligent disk drives (IDDs) are high performance large capacity 3.5-inch
fixed disk drives with an embedded fibre-channel controller.
The interface between the MAF3364FC/MAG series intelligent disk drives and host system conforms to
the fibre channel PLDA standard [NCITS TR-19 FIBRE CHANNEL PRIVATE LOOP SCSI DIRECT
ATTACH (FC-PLDA] which covers from the fibre channel physical layer to SCSI command protocol.
A combination of the high transfer speed and long-distance transfer of the fibre channel and high function
command set of the MAF3364FC and MAG series intelligent disk drives will facilitate construction of a
high performance and highly reliable disk subsystem with large storage capacity.
With respect to data formatting, it is possible to change it to a format different from the one at the time of
shipment by performing reinitialization on the installed system.
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1 - 1
1.1
Standard Features
(1)
Compactness
The IDD has the FC-AL controller which supports the Arbitrated Loop (FC-AL) of the fibre
channel modes defined by the ANSI standard, embedded in the 3.5-inch fixed disk drive form
factor.
(2)
FC-AL standard
The IDD provides not only FC-AL basic functions but also the following features:
•
•
•
Arbitration
Data frame CRC function
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.
(3)
(4)
Dual port support
In order to support dual ports, the IDD is equipped with two pairs of fibre channel
driver/receiver.
High speed data transfer
The data transfer rate on the fibre channel loop is 106.25 MB/s maximum. In addition, the large
capacity data buffer of the IDD allows the user to make full use of the high speed data transfer
capability of the fibre channel loop.
(5)
(6)
High speed spindle motor
The IDD increases the number of revolutions of the spindle motor from conventional 7,200 rpm
to 10,025 rpm. Increasing the number of revolutions of the spindle motor will make it possible to
improve the data transfer rate and reduce the rotation wait time.
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.
1 - 2
C141-E078-02EN
(7)
4MB programmable multi-segment data buffer
Data is transferred between fibre-channel loop and disk media through the embedded 4MB data
buffer in the IDD. This buffer can be divided into maximum 32 areas. This feature provides the
suitable usage environment for users.
Since the initiator can control the disconnect/reconnect timing on the fibre-channel loop 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 fibre-channel regardless of actual data transfer rate of the disk drive.
(8)
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.
(9)
Command queuing feature
The IDD can queue maximum 63 commands, and optimizes the issuing order of queued
commands by the reordering function. This feature realizes the high speed processing.
(10)
(11)
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.
Enclosure service function
The IDD supports an enclosure service interface (ESI) compliant with the SFF-8067. This
interface provides the function of setting/readin enclosure service information using the SCSI-3
enclosure service command set (SES).
(12)
(13)
Error recovery
The IDD can try to recover from errors in fibre-channel loop 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.
Automatic alternate block reassignment
If a defective data block is detected during read, the IDD can automatically reassign its alternate
data block.
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1 - 3
(14)
(15)
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 four 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.
(16)
(17)
High speed positioning
A rotary voice coil motor achieves fast positioning.
Large capacity
A large capacity can be obtained from 3-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.
(18)
(19)
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.
(20)
(21)
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
The noise level is low: Approx. 4.2 bels for the MAF3364FC and 4.0 bels for the MAG series.
This makes it ideal for office use. The IDD has rubber vibration isolators, which minimize the
transfer of vibration.
(22)
Microcode downloading
The IDD implements the microcode download feature. This feature achieves easy maintainability
of the IDD and function enhancing.
1 - 4
C141-E078-02EN
1.2
Hardware Structure
An outer view of the IDD is given in Figures 1.1 and 1.2. 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 MAF3364FC outer view
Figure 1.2 MAG series outer view
C141-E078-02EN
1 - 5
(1)
Disks
The disks have an outer diameter of 84 mm (3.31 inch) and inner diameter of 25 mm (0.98 inch).
The disks are good for at least 15,000 contact starts and stops. Each model contains following
number of disks.
MAF3364:10
MAG3182:5
MAG3091:3
(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
1.5 shows the configuration of disks and heads.
MAG3091
MAF3364
MAG3182
0
1
0
1
0
1
2
3
2
3
4
5
6
7
8
9
2
3
4
5
4
6
7
12
13
14
15
16
17
18
Head No.
Figure 1.3 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 - 6
C141-E078-02EN
(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 extended partial response class 4 maximum
likelihood (EPR4ML) 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.
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1 - 7
1.3
System Configuration
As the fibre channel mode, the ANSI standard defines three modes: Arbitrated Loop, Fabric and
Point-to-Point. This drive supports Arbitrated Loop (FC-AL). Figure 1.4 shows an example of
the system configuration.
Port B
Port A
Port B
Port A
BC
BC
BC
BC
Initiator
(Node-1)
Drive
(Node-2)
Port B
Port A
Port B
Port A
BC
BC
BC
BC
Drive
(Node-4)
Drive
(Node-3)
Figure 1.4 FC-AL system configuration
The mode of connection of all devices to the fibre channel is called “node.” The drive and
initiator correspond to the node shown in Figure 1.4. Each node has at least one port called “N-
port.” In the FC-AL, a port is particularly called “node loop (NL) port.” The MAF3364FC and
MAG series have two ports; one is connected to one FC-AL and a maximum of 126 NL ports can
be connected to one loop.
(1)
Loop configuration
One port incorporates a transmit circuit and receive circuit. Information is transmitted/received
by differential signals via electric signal lines. This pair of signal lines is called a link. Since
signals on a link are transmitted in one direction, wiring must be conducted so that it may form a
loop connection on the system.
In the case of the FC-AL interface, information is transmitted/received via each node connected
on a loop. Accordingly, if the power supply is off at a node connected to the loop or if interface
signals cannot be transmitted/received normally, the loop will no longer function. To avoid such
a nonconformity, a circuit called “port bypass circuit” is generally provided on the back plane of
the system. BC in Figure 1.4 shows this port bypass circuit.
(2)
Node addressing
Each node on the fibre channel loop is assigned its specific model number (SEL ID). The SEL
ID of the drive is set at the signal level on the back plane through 7 signals from SEL_0 to
SEL_6 of the SCA interface connector (CN1). In signal bit weighting, SEL_6 is the MSB
indicating 26 and SEL_0 is the LSB indicating 20.
The SEL ID setting of the drive ranges from #0(x‘00’) to #125(x‘7D’).
1 - 8
C141-E078-02EN
CHAPTER 2
SPECIFICATIONS
2.1 Hardware Specifications
This chapter describes specifications of the IDD.
2.1
Hardware Specifications
2.1.1
Model name and part number
The IDD is provided with various models according to the device type, device capacity, etc.
For the model name (type) and product number, refer to the model name/product number list
Appendix D.
With respect to data formatting, it is possible to change it to a format different from the one set at
the time of shipment by performing reinitialization on the installed 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
MAG3182
18.2 GB
23.0 GB
5
Item
MAF3364
MAG3091
Formatted capacity/device (*1)
Unformatted capacity/device
Number of disks
36.4 GB
9.1 GB
45.6 GB
11.5 GB
10
19
3
5
Number of heads
10
Number of cylinders (*2)
Formatted capacity/track
Number of rotations (rpm)
Average latency time
10,200
9,866
139,776 to 215,040
10,025±0.5%
2.99 ms
143,872 to 215,040
Seek time (*3) Minimum
(Read/Write)
0.7 ms (Read)/
0.9 ms (Write)
5.7 ms (Read)/
6.2 ms (Write)
12.0 ms (Read)/
13.0 ms (Write)
0.7 ms (Read)/
1.1 ms (Write)
5.2 ms (Read)/
5.8 ms (Write)
11.0 ms (Read)/
12.0 ms (Write)
Average
Maximum
Start/stop time Start time
30 s typ. (60 s max.)
30 s typ.
(*4)
Stop time
Recording mode
16/17 EPR4ML
Recording density
Track density
283,000 bpi
275,000 bpi
13,500 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
1.1 kg
17 W
0.7 kg
13 W
Power consumption (*5)
Interface
Cable length: 30 m max.
29.5 to 45.0 MB/s
106.25 MB/s max.
512 to 528 byte
Data transfer
rate
Disk drive
FC-AL
Logical data block length
SCSI command specification
SCSI-2 (ANSI X3T9.2/86-109 Rev 10h) command support
SCSI-3 command partial support
Fujitsu-specific command
4 MB FIFO ring buffer, multi-segment buffer: Segment count 1 to 32,
Read-ahead cache
Data buffer
(*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 seek time is as follows:
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2 - 2
MAG3364FC Seek Time
MAG series Seek Time
(*4)
(*5)
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.
This value indicates at ready mode.
C141-E078-02EN
2 - 3
2.1.3
Environmental specifications
Table 2.2 lists environmental and power requirements.
Table 2.2
Environmental/power requirements
Specification
MAG3182FC
5 to 50°C
Item
MAF3364FC
MAG3091FC
Temperature (*1) Operating
Non-operating
– 40 to 60°C
5 to 55°C
DE surface temperature at operating
Gradient
15°C/h or less
20 to 80%RH
20 to 80%RH
Relative humidity Operating
Non operating
Packaged (inside of a week) 5 to 90%RH
Maximum wet bulb temperature
Operating (*3)
29°C (no condensation)
Vibration (*2)
Shock (*2)
0.3 mm (5 to 20Hz)/0.5G (20 to 250 Hz) or less
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
Non-operating (*4)
Operating
20G (2 ms)
Non-operating
Operating
175G (2 ms)
Altitute
– 60 m to 3,000 m (above sea level)
– 60 m to 12,000 m (above sea level)
(above sea level)
Non-operating
+12 VDC
±5%
Ready (Average)
Spin-up, Seek
Peak within 100 µs
at spin-up
0.95 A
2.5 A (Max)
3.2 A
0.65 A
2.5 A (Max)
3.0 A
Power
requirements
Input power (*5)
+5 VDC
±5%
Ready
1.4 A
1.7 A
1.3 A
1.6 A
Random W/R
(about 80 IOPS)
Ripple (*6)
+5 V 250 mVp-p, +12 V 250 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 DE base as
much as possible.
(*3)
(*4)
(*5)
(*6)
At random seek write/read and default on retry setting with log sweep vibration.
At power-off state after installation
Input voltages are specified at the connector.
High frequency noise is less than 250 mVp-p.
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2 - 4
2.1.4
(1)
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.
Unrecoverable error rate
Errors which cannot be recovered within 63 retries and ECC correction should not exceed 10 per
1015 bits.
(2)
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 (*1) from all field sites
*1 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.
C141-E078-02EN
2 - 5
(2)
(3)
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.
Service life
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.
The service life under suitable conditions and treatment is as follows.
•
•
•
•
•
DE surface temperature: 40°C or less
DE surface temperature: 41°C to 45°C
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
4.5 years
4 years
3.5 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.
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2 - 6
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.
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3 - 1
P: MAF3364FC = 10400
MAG series = 10066
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-E078-02EN
Table 3.1
Zone layout and track capacity (MAF3364FC)
Zone
0
1
2
3
4
5
6
Cylinder
0 to 899
900 to
1,999
2,000 to
3,019
3,020 to
3,729
3,730 to
4,029
4,030 to
4,669
4,670 to
5,189
Byte/track 267,428
267,428
420
267,428
420
260,017
405
256,665
400
249,755
390
244,019
380
Sector/track
420
7
Zone
8
9
10
11
12
13
Cylinder
5,190 to
5,459
5,460 to
6,459
6,460 to
7,369
7,370 to
7,929
7,930 to
8,399
8,400 to
9,519
9,520 to
10,199
Byte/track 240,931
Sector/track 376
229,596
360
218,471
340
211,617
330
205,757
320
191,178
300
181,401
281
Remarks: The sector/track capacities are expressed in values when the logical data block is 512 bytes
long.
Table 3.2
Zone layout and track capacity (MAG series)
Zone
0
1
2
3
4
5
6
Cylinder
0 to 679
680 to
1,559
1,560 to
2,409
2,410 to
3,139
3,140 to
3,469
3,470 to
4,119
4,120 to
4,659
Byte/track 267,428
267,428
420
267,428
420
260,410
405
256,969
400
250,231
390
244,449
381
Sector/track
420
7
Zone
8
9
10
11
12
13
Cylinder
4,660 to
4,939
4,940 to
5,989
5,990 to
6,919
6,920 to
7,499
7,500 to
7,979
7,980 to
9,149
9,150 to
9,865
Byte/track 241,779
Sector/track 377
229,631
360
218,894
340
211,976
330
206,169
320
191,474
300
176,273
273
Remarks: The sector/track capacities are expressed in values when the logical data block is 512 bytes
long.
(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.
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3 - 3
The default number of cylinders in the user space is 10,200 for MAF3364FC and 9,866 for MAG
series. The user, however, can select the number of cylinders to be allocated in the user space by
specifying 10,200 for MAF3364FC and 9,866 for MAG series 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 10,200 (MAF3364FC) and 9,866 (MAG series), 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
512 byte. The internal test space consists of only 1 cylinder and outer-host cylinder (–37) 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 CE space during the self-diagnostic test specified
with the setting terminal (diagnostic mode) or 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.
3.1.2
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.
3 - 4
C141-E078-02EN
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 or MODE SELECT EXTENDED command.
The number of spare sectors per cylinder can be specified exceeding 32. The default number of
spare sectors per cylinder is 20 for the MAF3364FC and MAG3182FC and 12 for the
MAG3091FC.
SPR1
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
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.
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3 - 5
The interval of the sector pulse (length of the physical sector) is decided by multiple of 20MHz
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.
119,700 CLKs*1 (20MHz)
Figure 3.4 Track format
*1: MAF3364FC, MAG series
(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.
3 - 6
C141-E078-02EN
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.
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 and Table 3.3 gives sector format examples.
G1:
8 bytes
17 bytes
5 bytes
6 bytes
7 bytes
8 bytes
6 bytes
PLO Sync:
TRNG1/SB1:
TRNG2/SB2:
PAD 1:
PAD 2:
PAD 3:
Figure 3.6 Sector format
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3 - 7
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 3.7. 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 to 528 bytes can be specified as the length.
(6)
(7)
(8)
(9)
BCRC
It is a 4-byte error detection code. Errors in the ID field. Single burst errors with lengths of up to
32 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.
3 - 8
C141-E078-02EN
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 3.3 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 3.3
Format capacity
Model
Data heads Data block length
User blocks
71,161,520
35,694,860
17,827,698
Format capacity (GB)
MAF3364FC
MAG3182FC
MAG3091FC
19
10
5
512
512
512
36.43
18.27
9.12
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3 - 9
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.
3 - 10
C141-E078-02EN
3.3
Defect Management
Defect list
3.3.1
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 or MODE
SELECT EXTENDED 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.
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3 - 11
•
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.
3 - 12
C141-E078-02EN
: 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.
C141-E078-02EN
3 - 13
(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
3 - 14
C141-E078-02EN
(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.
C141-E078-02EN
3 - 15
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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
Mounting Requirements
External dimensions
4.1.1
Figures 4.1 and 4.2 show the external dimensions of the IDD and the positions of the holes for
the IDD mounting screws.
Note:
Dimensions are in mm.
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Figure 4.1 External dimensions (MAF3364FC)
4 - 2
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Figure 4.2 External dimensions (MAG series)
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4.1.2
Mounting
The permissible orientations of the IDD are shown in Figure 4.3, 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 4.3 IDD orientation
4.1.3
Notes on mounting
Mounting frame structure
Special attention must be given to mount the IDD disk enclosure (DE) as follows:
(1)
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a) Use the frame with an embossed structure, or the like. 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.
c) Tightening torque of screw must be secured with 6kg-cm or less.
d) Impact caused by the electric driver must be within the device specifications.
e) Must be handled on an anti-static mat.
Figure 4.4 Mounting frame structure
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(2)
Limitation of side-mounting
Mount the side using the screw holes at both the ends as shown in Figure 4.5. Do not use the
center hole.
Holes for
mounting
4
3
2
Do not use these holes
Holes for mounting screw
Use these holes (No. 1 to 4)
to mount.
1
Figure 4.5 Limitation of side-mounting
(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 MAC30xxFC.
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.
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Table 4.1
Surface temperature check point
No.
1
Measurement point
Criteria
55°C
Center of DE cover
Read channel LSI
VCM/SPM Driver
HDC
2
83°C
3
75°C
4
85°C
1
2
4
3
Figure 4.6
Surface temperature measurement points
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(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 4.7.
[Surface R]
• Hole for mounting screw
[Surface P]
• Cable connection
[Surface Q]
• Hole for mounting screw
Figure 4.7 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.
CAUTION
Damage to drive
A hole or screw portion as shown in Figure 4.8 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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(a) MAF3364FC
Air pressure adjustment hole
(b) MAG series
Air pressure adjustment hole
Figure 4.8 Air pressure adjustment hole
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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 4.9 shows the waveform of +12 VDC.
MAF3364FC
MAG series
Figure 4.9 Current waveform (+12 VDC)
(3)
(4)
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.
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 UNIT command at 20-second intervals to start the spindle motors. For
details of this command specification, refer to SCSI Logical Interface Specifications.
For details of this command, see "Chapter 4 Command Specification" of the Fibre Channel
Interface Specification.
b) Turn on the +12 VDC power in the power supply unit at 20-second intervals to start the
spindle motors sequentially.
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(5)
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 4.10 is recommended.
Figure 4.10 AC noise filter (recommended)
4.3
Connection Requirements
4.3.1
Connector
Figure 4.11 shows the locations of connector on the interface model.
Interface connector
Figure 4.11
Connector location of SCA2 type interface model
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4.3.2
Interface connector
The connector for the fibre channel loop bus is an unshielded SCA-2 connector conforming to
SCSI-3 type which has two 20-pin rows spaced 1.27 mm (0.05 inch) apart. Figure 4.12 shows the
fibre channel 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
Interface Specifications.
ESD contact
Figure 4.12 SCA2 type interface connector
Recommended components for connection
4.3.3
Applicable model
Name
Connector
Par number
787317-1
Manufacturer
AMP
MAF3364FC
MAG series
Interface connector
(CN1)
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CHAPTER 5
INSTALLATION
5.1 Notes on Handling Drives
5.2 Setting
5.3 Mounting Drives
5.4 Confirming Operations after Installation and Preparation
for Use
5.5 Dismounting Drive
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.
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(3)
Installation
a) When mounting/dismounting the drive, make sure the vibration and shock requirements of
"2.1.3 Environmental Specification" are met.
b) When removing the spindle motor from the system without stopping it while power is on, pay
special attention to shock in particular until the disk drive completely stops running (about 30
seconds).
(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 4.1.2 (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.
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5.2
Setting
5.2.1
Loop ID setting
When setting the fibre channel loop ID, use SEL0 to SEL6 of interface connector CN1. IN bit
weighting, SEL6 corresponds to the MSB, SEL0 to the LSB, and 126 types of X'00' to X'7D' can
be specified as loop IDs.
5.2.2
Mode settings
(1)
Motor start mode
The method for start control of the IDD spindle motor can be set in accordance with Table 5.1.
Table 5.1 Motor start mode
Setting
Signal name
Start_2/Mated
Start_1/Mated
Start mode
Connector pin
CN1-10
Open
CN1-09
Open
The drive is not connected to the system. The drive does not start
the spindle motor.
Open
GND
GND
GND
Open
GND
The drive is connected to the system. After recognizing the
connection, the drive starts the spindle motor upon receipt of a
START/STOP UNIT command.
The drive is connected to the system. After recognizing the
connection, the drive starts the spindle motor after a prescribed
delay time has elapsed.
The drive is connected to the system. The driver starts the spindle
motor immediately after recognizing the connection.
IMPORTANT
Set the loop ID so that there are no duplicates between devices on the same
loop.
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5.3
Mounting Drives
5.3.1
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 4.1 for the details of requirements for installing the IDD.
1) Fix the drive in the system cabinet with four mounting screws as follows:
•
•
•
The drive has 8 mounting holes (both sides: 2 × 2, bottom: 4). Fix the drive by using
four mounting holes of both sides or the bottom. (See Figure 4.5)
Use mounting screws whose lengths inside the drive mounting frame are 4 mm or less
when the screws are tightened (see Figure 4.4).
When mounting the drive, be careful not to damage parts on the PCAs.
2) Check to ensure that the DE is not touching the frame on the system side after tightening the
screws. At least 2.5 mm of clearance is required between the DE and the frame. (Indicated
in Figure 4.4)
3) When an electric driver is in use, less than low-impact device specifications must be used.
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5.4
Confirming Operations after Installation and Preparation for Use
Confirming initial operations
5.4.1
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 IDD executes initial self-diagnosis.
b) If an error is detected in initial self-diagnosis, the Fault LED lights up.
Remark:
The spindle motor may or may not start rotating in this stage.
c) When the IDD status is idle, the Active LED remains off (the LED lights up when the
initiator accesses the IDD).
(2)
Initial operation in the case of setting so that motor starts with START/STOP UNIT command
a) When power is turned on, the IDD executes initial self-diagnosis.
b) If an error is detected in initial self-diagnosis, the Fault LED lights up.
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 active LED blinks during command execution.
(3)
Check items at illegal operation
a) Check that IDD are mounted correctly.
b) Check that power and voltages are supplied correctly (measure them with the IDD power
connection position).
c) When the Fault LED continues lighting up, indicates that an error is detected in initial self-
diagnosis. 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.
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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.
5.4.2
Checking connection
When the initial operation is checked normally after power is turned on, check that the IDD is
connected to the loop 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 5.1 shows the
recommended checking procedure for the mode that the motor starts when power is turned on.
Figure 5.2 shows for the mode that the motor starts by the START/STOP UNIT command. In
these recommended checking procedures, following items are checked.
Note:
Following steps a) to e) correspond to a) to e) in Figures 5.1 and 5.2.
a) Issue the TEST UNIT READY command and check that the IDD is connected correctly
to the loop 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 loop operations with the WRITE BUFFER and READ BUFFER commands.
d) Start the IDD self-diagnostic test with the SEND DIAGNOSTIC command and check
the basic operations of the controller and disk drive.
5 - 6
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Motor starts when power is turned on
For Figure 5.2
Figure 5.1 Checking the IDD connection (A)
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Motor starts by START/STOP command
Executing time: opprox. 30 seconds
To Figure 5.1
Figure 5.2 Checking the IDD connection (B)
5 - 8
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(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 5 of Fibre Channel Interface
Specifications for further details.
b) Check the setting of the terminals. Note that the checking procedure of loop connection
differs depending on the setting of the motor start mode and unit attention report mode.
5.4.3
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 4 and 6 of Fibre Channel
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).
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.
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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.
5.4.4
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.
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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 4 of Fibre Channel
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. 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.
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(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
63
0
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
0 (disabled)
• RPR:
Report on parameter rounding by mode select
command
• Retry count at seek error
15
IMPORTANT
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.
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(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 loop 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 3 of Fibre Channel 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)
IMPORTANT
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 amount of processing data specified with a
command
Refer to Chapter 3 of Fibre Channel 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.
(3)
Caching parameters
The following parameters are used to optimize IDD Read-Ahead caching operations under the
system environments. Refer to Chapter 3 of Fibre Channel Interface Specifications for further
details.
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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'
(1 cache segment)
• Number of blocks with maximum prefetch restrictions
• Number of segments
X'FFFF'
X'4'
IMPORTANT
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.
a. Control mode parameters
Parameter
Default value
• RLEC:
Specification of operation when cumulative
value parameter reaches maximum value 0
0 (Does not
report error)
• Queue algorithm modifier
0 (Ordering is
executed by read
command only.)
• QErr:
Resume or abort remaining suspended
commands after sense pending state
0 (After release
of sense retention
status, executes
queued command.)
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5.5
Dismounting Drive
Since the method and procedure for dismounting the disk drive for replacement of the drive, etc.
depends on the locker structure of the system, etc., the work procedure must be determined in
consideration of the requirements specific to the system. This section describes the general
procedure and notes on dismounting the drive.
CAUTION
Damage
1. When dismounting the drive which is mounted on the system while
power is supplied to it.
•
The drive to be dismounted must be separated from the loop.
Dismounting the drive which is not separated from the loop may
cause an unexpected error.
•
•
If the drive is not separated from the loop, issue an LPB to the drive
from the initiator in a primitive sequence of the order set.
It is recommended to stop the spindle motor prior to this loop
separation operation. The spindle motor can be stopped by a
START/STOP command. It takes about 30 seconds for the spindle
motor to stop completely.
•
Then, dismount the drive using the drive mounting/dismounting
mechanism, etc. of the system. If the drive is dismounted while the
spindle motor is running, special care is required to avoid excessive
vibration or shock to the drive. It is recommended to stop the
operation once the SCA connector breaks off contact and wait until
the spindle motor stops (about 30 seconds) before dismount the
drive.
•
When storing or transporting the drive, put it in an antistatic bag.
(Shown in Section 5.1).
2. When dismounting the drive which is mounted on the system while
power is not supplied to it.
•
Do not move the drive until the drive stops completely (about 30
seconds if the spindle motor was stopped by a START/STOP UNIT
command, and about 30 seconds after powering-off when the power
was simply turned off).
•
•
Then, dismount the drive using the drive mounting/dismounting
mechanism, etc. of the system.
When storing or transporting the drive, put it in an antistatic bag.
(Shown in Section 5.1).
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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-E078-02EN
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 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 initial self-diagnosis, the Fault LED lights up. In this status, the IDD
reports the CHECK CONDITION status to all input/output 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-E078-02EN
The IDD does not reply to the loop 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 2.4 and Subsection 2.7.4 in Fibre Channel 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 CE 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-E078-02EN
6 - 3
When an error is detected in the self-diagnostics, the IDD terminates the SEND
DIAGNOSTIC command with the CHECK CONDITION status. If an error is detected by a
hardware function test at this time, the Fault LED lights up.
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 Fault LED continues lighting up 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 4 of Fibre Channel Interface Specifications for further details of the
command specifications.
CAUTION
Data loss
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 devices
connected to the loop 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-E078-02EN
(1)
(2)
(3)
(4)
Interface test
The operations of the loop 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.
6.2
Maintenance Information
6.2.1
(1)
Maintenance requirements
Preventive maintenance
Preventive maintenance such as replacing air filters is not required.
CAUTION
Damage
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
5 years
4 years
3 years
Strengthen cooling power so that DE surface
temperature is 55°C or less.
Even if the IDD is used intermittently, the longest service life is 5 years.
C141-E078-02EN
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
Data loss
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-E078-02EN
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).
C141-E078-02EN
6 - 7
IMPORTANT
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.
At shipment
Rev. A2
Revising at field
Rev. A3
Figure 6.2 Indicating revision numbers
6 - 8
C141-E078-02EN
APPENDIX A
LOCATIONS OF CONNECTORS
A.1 Locations of Connectors
This appendix shows the locations of connectors for 8- and 16-bit SCSIs.
C141-E078-02EN
A - 1
A.1
Locations of Connectors
(Rear view)
(MAF3364FC)
(Rear view)
(MAG series)
Figure A.1 Locations of connectors
A - 2
C141-E078-02EN
APPENDIX B
CONNECTOR SIGNAL ALLOCATION
B.1 Interface (FC-SCA) Connector Signal Allocation
This appendix describes the connector signal allocation.
C141-E078-02EN
B - 1
B.1
Interface (FC-SCA) Connector Signal Allocation
Table B.1 FC-SCA connector: CN1
Pin No.
01
Signal
–EN bypass port A
+12V
Signal
+12V charge
GND
Pin No.
21
02
22
03
+12V
GND
23
04
+12V
+PortA_in
–PortA_in
GND
24
05
–Parallel ESI
–Drive present
Active LED out
–Spindle sync
Start_1/Mated
Start_2/Mated
–EN bypass port B
25
06
26
07
+PortB_in
–PortB_in
GND
27
08
28
09
29
10
+PortA_out
–PortA_out
GND
30
11
31
12*
13*
14*
15*
16
SEL-6
SEL-5
SEL-4
SEL-3
–DSK_WR
32
–DSK_RD
–ENCL_ACK
D(3)
+PortB-out
–PortB-out
GND
33
34
35
Fault LED out
SEL-2
SEL-1
SEL-0
D(2)
D(1)
D(0)
36*
37*
38*
39
17
N.C
N.C
+5V
+5V
18
19
N.C
20
+5V charge
40
Note: *1) Signal names in the right column of the table are those in parallel ESI operation.
B - 2
C141-E078-02EN
APPENDIX C
MODEL NAMES AND PRODUCT NUMBERS
C.1 Model Names and Product Numbers
This appendix lists model names (types) and product numbers.
C141-E078-02EN
C - 1
C.1
Model Names and Product Numbers
Table C.1 MAF and MAG series model names and product numbers
Data block
length
(at factory
Total
storage
capacity
Model name
Mounting
screw
Part number
Remarks
(type)
shipment) (user area)
MAF3364FC
512B
512B
512B
36.4 GB
18.2 GB
9.1 GB
#6-32UNC
#6-32UNC
#6-32UNC
CA01776-B980
1.6-inch height
10,025 rpm
10 disks
19 heads
MAG3182FC
MAG3091FC
CA01776-B580
CA01776-B380
1-inch height
10,025 rpm
5 disks
10 heads
1-inch height
10,025 rpm
3 disks
5 heads
C - 2
C141-E078-02EN
APPENDIX D
FIBRE CHANNEL INTERFACE FUNCTIONS
D.1 Fibre Channel Interface Function Specifications
This appendix lists the fibre channel interface functions provided for the IDD. Refer to the Fibre Channel
Logical Interface Specifications for details of each functions.
C141-E078-02EN
D - 1
D.1
Fibre Channel Interface Function Specifications
Table D.1 Fibre channel interface function specifications (1 of 8)
: Provided ×: Not provided
Item
SIMPLE QUEUE TYPE
Specification
Task
attribute
message
Ο
Ο
Ο
Ο
HEAD OF QUEUE TYPE
ORDERED QUEUE TYPE
ACA TYPE
UNTAGGED
×
Task
TERMINATE TASK
CLEAR ACA
×
Ο
Ο
Ο
Ο
Ο
Ο
Ο
manage-
ment flag
message
TARGET RESET
CLEAR TASK SET
ABORT TASK SET
TEST UNIT READY
REZERO UNIT
(00)
(01)
(03)
(04)
=0
REQUEST SENSE
FORMAT UNIT
Ο
Ο
FmtData (format data)
Interleave factor
Ο (No interleave)
Block address format defect listing
=0
≠0
=0
≠0
×
×
Ο
Ο
Ο
Ο
Block address format defect listing
Byte-distance-from-index format defect listing
Byte-distance-from-index format defect listing
Physical sector address format defecting listing =0
Physical sector address format defecting listing ≠0
CmpLst (complete list)
Command
(Group 0)
Ο
Ο
Ο
Ο
×
×
×
Ο
Ο
Ο
Ο
Ο
FOV (Format Options Valid)
DPRY (Disable Primary)
DCRT (Disable Certification)
STPF (Stop Format)
IP (Initialization Pattern)
DSP (Disable Saving Parameters)
Immed (Immediate)
REASSIGN BLOCKS
(07)
(08)
(0A)
(0B)
READ
WRITE
SEEK
D - 2
C141-E078-02EN
Table D.1 Fibre channel interface function specifications (2 of 8)
: Provided ×: Not provided
Item
Specification
INQUIRY
(12)
Ο
EVPD (Enable Vital Product Data)
Typical INQUIRY data
Ο
Ο (64 byte long)
VPD Page 0: VPD page code listing
VPD Page 80: Device serial number
VPD Page C0: Operation mode
READ DEVICE CHARACTERISTICS
PRIORITY RESERVE
Ο
Ο
Ο
×
×
Ο
[VU] *(13)
[VU] *(14)
(15)
MODE SELECT
PF=(page format)
Ο (Specified value
ignored)
Page 1: Read/write error recovery
Ο (12 B: Savable)
AWRE (Automatic Write Reallocation Enabled)
× (Specified value
ignored)
ARRE (Automatic Read Reallocation Enabled)
Ο (Changeable)
TB
RC
(Transfer Block)
Ο (Changeable)
(Read Continuous)
×
EER (Enable Early Recovery)
PER (Post Error)
×
Ο (Changeable)
Command
(Group 0)
DTE (Disable Transfer on Error)
× (Specified value
ignored)
DCR (Disable Correction)
Retry count at read
×
Ο (Changeable)
Correctable bit length
Ο (Not changeable)
Head offset count
×
Data strobe offset count
×
Retry count at write
Ο (Changeable)
Recovery processing time restriction
Page 2: Disconnection/reconnection
Buffer-full ratio
×
Ο (16 B: Savable)
Ο (Changeable)
Buffer-empty ratio
Ο (Changeable)
Bus inactivity restriction
Disconnection time restriction
Connection time restriction
Maximum burst length
×
×
×
Ο
DTDC (data transfer disconnect control)
EMDP (Enable Modify Data Pointer)
×
×
FARd, FAWrt, FAStat (Tair Arbitoration
READ/Write/Status)
Ο (Not changeable)
DImm (Disconnect Immediate)
×
*1 Fujitsu-specific function
C141-E078-02EN
D - 3
Table D.1 Fibre channel interface function specifications (3 of 8)
: Provided ×: Not provided
Item
MODE SELECT (continued)
Page 3: Format parameter
Number of tracks/zone
Specification
(15)
Ο (24 B: Savable)
Ο (Not changeable)
Ο (Changeable)
Ο (Not changeable)
Ο (Not changeable)
Ο (Not changeable)
Ο (Changeable)
Ο (No interleave)
Ο (Not changeable)
Ο (Not changeable)
Ο (Not changeable)
Ο (Not changeable)
Ο (Not changeable)
Ο (24 B: Savable)
Ο (Changeable)
Ο (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)
×
×
Ο (Not changeable)
Ο (12 B: Savable)
Ο (Changeable)
Ο (Changeable)
DTE (Disable Transfer on Error)
× (Specified value
ignored)
DCR (Disable Correction)
Retry count at verification
Correctable bit length
Ο (Changeable)
Ο (Changeable)
Ο (Not changeable)
Ο (Not changeable)
Recovery processing time restriction
D - 4
C141-E078-02EN
Table D.1 Fibre channel interface function specifications (4 of 8)
: Provided ×: Not provided
Item
Specification
MODE SELECT (continued)
(15)
Page 8: Caching parameter
Ο (20 B: Savable)
DISC (discontinuity)
MS (Multiple Select)
Ο (Not changeable)
×
WCE (Write Cache Enable)
RCD (Read Cache Disable)
Demand Read Retention Priority
Write Retention Priority
Ο (Changeable)
Ο (Changeable)
×
×
Prefetch suppression block count
Minimum prefetch
×
×
Maximum prefetch
Ο (Not changeable)
Ο (Not changeable)
Ο (Changeable)
×
Maximum prefetch restriction block count
Number of segments
Buffer segment size
Command
(Group 0)
Page A: Control mode page
RLEC (Report Log Exception Condition)
Ο (12 B: Savable)
× (Specified value
ignored)
Queue Algorithm modifier
QErr (Queue Error management)
RAC (Report a Check)
SWP (Software Write Protect)
DQue (Disable Queuing)
RAEN
Ο (Changeable)
Ο (Changeable)
×
×
×
×
×
×
×
UAEN
EAEN
Ready AEN Holdoff period
C141-E078-02EN
D - 5
Table D.1 Fibre channel interface function specifications (5 of 8)
: Provided ×: Not provided
Item
Specification
Page C: Notch parameter
Ο
Page 19: Fibre channel control parameter
Ο (8 B)
DTOLI (Disable Target Originated Loop
Initialization)
Ο (Not Changeable)
DTIPE (Disable Target Initiated Port Enable)
Ο (Not changeable)
ALWLI (Allow Login Without Loop
Initialization)
Ο (Not changeable)
DSA (Disable Soft Address
DLM (Disable Loop Master)
DDIS (Disable Discovery)
Ο (Not changeable)
Ο (Not changeable)
Ο (Not changeable)
Page 21: Additional error recovery
RPR (Rounded Parameter Report)
Retry count at seek error
[VU] (*1)
Ο (4 B: Savable)
×
Ο (Changeable)
RESERVE
(16)
(17)
(18)
(1A)
×
×
×
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
RELEASE
COPY
Command
(Group 0)
MODE SENSE
DBD (Disable Block Descriptor)
Page 0 (Non-Parameter Transfer)
START/STOP UNIT
(1B)
(1C)
Immed (Immediate)
RECEIVE DIAGNOSTIC RESULTS
Page 00: Specifiable page code list
Page 01: Configuration
Page 02: Enclosure status
Page 03: Help text
Page 04: String in
Page 05: Threshold in
Page 06: Array status
Page 07: Element descriptor
Page 08: Short enclosure status
Page 40: Logical/physical address conversion
*1 Fujitsu-specific function
D - 6
C141-E078-02EN
Table D.1 Fibre channel interface function specifications (6 of 8)
: Provided ×: Not provided
Item
Specification
SEND DIAGNOSTIC
(1D)
Ο
PF (Page Format)
Ο (Specified value
ignored)
Self Test (Self Test)
Ο
×
Ο
Ο
Ο
Ο
Ο
Ο
Ο
×
×
×
×
×
×
Ο
Ο
Ο
Ο
Ο
Ο
×
Ο
Ο
×
×
×
×
×
Ο
Ο
Dev Ofl (Device Offline)
Unit Ofl (Unit Offline)
Page 0: Specifiable page code listing
Page 02: Enclosure control
Page 04: String out
Command
(Group 0)
Page 05: Threshold out
Page 06: Array control
Page 40: Logical/physical address conversion
Page 80: Mode setup state report
Page 81: Device-specific information
PREVENT/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)
PMI (Parial Medium Indicator)
READ EXTENDED
(28)
(2A)
(2B)
(2E)
WRITE EXTENDED
SEEK EXTENDED
WRITE & VERIFY
Command
(Group 1)
BytChk (Byte Check)
VERIFY
(2F)
By+Chk (Byte Check)
SEARCH DATA HIGH
SEARCH DATA EQUAL
SEARCH DATA LOW
SET LIMITS
(30)
(31)
(32)
(33)
(34)
(35)
(36)
PRE-FETCH
SYNCHRONIZE CACHE
LOCK/UNLOCK CACHE
*1 Fujitsu-specific function
C141-E078-02EN
D - 7
Table D.1 Fibre channel interface function specifications (7 of 8)
: Provided ×: Not provided
Item
Specification
READ DEFECT DATA
(37)
Ο
Ο
Ο
Ο
×
×
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
×
Ο
Ο
Ο
Ο
×
×
×
Ο
Ο
Ο
Ο
×
×
×
×
×
×
Block address format
Byte-distance-from-index format
Physical sector address format
COMPARE
(39)
(3A)
(3B)
COPY & VERIFY
WRITE BUFFER
Mode=‘000’ (Header & Data Mode)
Mode=‘001’ (Header & Data Mode with Address)
Mode=‘010’ (Data Mode)
Command
(Group 1)
Mode=‘100’ (Download Microcode)
Mode=‘101’ (Download Microcode and Save)
READ BUFFER
(3C)
Mode=‘000’ (Header & Data Mode)
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)
PBdata (Physical Block Data)
LOG SELECT
(4C)
(4D)
Command
(Group 2)
LOG SENSE
MODE SELECT EXTENDED
RESERVE EXTENDED
RESERVE EXTENDED
MODE SENSE EXTENDED
DIAGNOSTIC WRITE DATA
DIAGNOSTIC READ DATA
FORMAT ID
(55)
(56)
(57)
(5A)
[VU] (*1) (C1)
[VU] (*1) (C2)
[VU] (*1) (C4)
[VU] (*1) (C6)
[VU] (*1) (C8)
[VU] (*1) (CA)
Command
(Group 6)
SPACE ID & READ DATA
DISPLACED ID
READ ID
*1 Fujitsu-specific function
D - 8
C141-E078-02EN
Table D.1 Fibre channel interface function specifications (8 of 8)
: Provided ×: Not provided
Item
DIAGNOSTIC FORMAT ID
DIAGNOSTIC READ ID
WRITE RAM
Specification
[VU] (*1) (CD)
[VU] (*1) (CE)
[VU] (*1) (D1)
[VU] (*1) (D2)
[VU] (*1) (D8)
[VU] (*1) (DA)
×
×
×
×
×
×
Ο
×
×
×
Ο
×
×
×
Command
(Group 6)
READ RAM
RECOVER DATA
RECOVER ID
Defective sector slip processing function
Command link function
Relative block addressing function
Untagged queuing function
Tagged command queuing function
Contingent Allegiance (CA)
Extended Contingent Allegiance (ECA)
Command
Processing
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
Ο
×
×
×
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
×
(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
Ο (48 bytes long)
Ο (Rev. 4.b)
CCS (common command set) conformity
*1 Fujitsu-specific function
C141-E078-02EN
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Glossary
Bus condition:
Bus phase:
Asynchronous condition for causing SCSI bus status transition. There are
two types of bus conditions, ATTENTION and RESET.
An SCSI bus state. The SCSI bus is in one of the following phases: BUS
FREE,
ARBITRATION,
SELECTION,
RESELECTION,
or
INFORMATION TRANSFER. The INFORMATION TRANSFER phase
is divided into DATA IN, DATA OUT, COMMAND, STATUS,
MESSAGE IN, and MESSAGE OUT phases depending on the type of
information being transferred.
CCS:
CDB:
Common Command Set. The standard SCSI logical specification
stipulated by a working committee of ANSI. Functions necessary for
direct access devices are defined.
Command Descriptor Block. A group of data that describes the command
for I/O and is transferred from an initiator to a target.
Command:
Disconnect:
Issued to a target to direct an input/output operation and written as CDB.
Operation performed by the target to free itself from the SCSI bus and the
initiator temporarily when SCSI bus operation becomes unnecessary
during command processing.
Initiator:
SCSI device that has initiated an input/output operation on the SCSI
device. This is abbreviated as INIT.
Logical unit:
Simple unit of equipment that can be directed to perform one I/O
operation on the SCSI bus.
LUN:
Logical unit number used to identify a logical unit.
Message:
Information that controls a series of bus phases and I/O sequence between
the initiator and the target on the SCSI bus.
Reconnect:
SCSI:
Operation performed by the target to reconnect itself with the initiator
when operation on the SCSI bus becomes necessary after disconnection.
Small computer system interface. An input/output interface standardized
by the American National Standards Institute (ANSI). [Standard
number: ANSI X3.131-1986]
SCSI device:
SCSI ID:
General term for a device (Input/output device, I/O controller, and host
adapter, etc.) connected to an SCSI bus.
Physical device address used to identify an SCSI device on the SCSI bus.
This number is specific to each SCSI device. SCSI IDs are #0 to #7, each
referenced by a unique bit on the data bus.
Sense code:
One byte of code added to the sense data to identify the type of detected
error.
C141-E078-02EN
GL - 1
Sense data:
Detailed information created by the target when any error is involved in
the command termination status. This information is transferred to
report the error.
Sense key:
Status:
Four-bit code added to the sense data to identify the class of detected
error.
One byte of information that is transferred from a target to an initiator on
termination of each command to indicate the command termination
status.
Target:
SCSI device which performs I/O initiated by an initiator. It is abbreviated
as TARG.
GL - 2
C141-E078-02EN
Abbreviations
DTE
Disable Transfer on Error
A
ACK
AEN
ALT
ACKnowledge
E
Asynchoronous Event Notification
ALTernated (block)
Automatic Read Reallocation
Enabled
ECC
EER
EVPD
Error Correction Code
Enable Early Recovery
Enable Vital Product Data
ARRE
ASCII
American Standard Code for
Information Interchange
ASiGned block
F
ASG
ATN
ATTeNtion
FG
Frame Ground
AWG
AWRE
American Wire Gauge
Automatic Write Reallocation
Enabled
FIFO
First In First Out
FmtData Format Data
FOV
FUA
Format Options Valid
Force Unit Access
B
G
bpi
BSY
BytChk
bits per inch
BuSY
Byte Check
G
Gap
G list
Grown defect list
C
H
C list
C/D
Target Certification list
Control/data
H
HSEC
Height
Hard SECtor
CCS
CDB
CE
CmpLst
CRC
CSS
Common command set
Common descriptor block
Customer Engineer
Complete List
Cyclic Redundancy Check
Contact Start Stop
CYLinder
I
I/O
ID
IDD
ILBN
Immed
Input/Output
IDentifier
Intelligent Disk Drive
Ideal Logical Block Number
Immediate
CYL
INDX/SCT INDeX/SeCTor
D
IP
ISG
Initialization Pattern
InterSector Gap
D
Depth
D list
DBD
DC
Data Defect List
Disable Block Descriptor
Direct Current
L
DCR
DCRT
DE
DEF
DevOfl
DPO
DPRY
DSP
Disable Correction
Disable CeRtificaTion
Disk Enclosure
DEFective block
Device Offline
Disable Page Out
Disable PRimarY
Disable Saving Parameters
Data Transfer Disconnect Control
LBdata
LBN
LED
Logical Block data
Logical Block Number
Light Emitting Diode
Logical Unit Number
LUN
M
MR
MS
Magnetro Resistive
Multiple Select
DTDC
C141-E078-02EN
AB - 1
MSG
O
MeSsaGe
T
TB
TPI
TRM
Transfer Block
Tracks Per Inch
TeRMinator
OEM
P
Original Equipment Manufacturer
U
P list
P/N
Primary defect list
Parts/Number
UnitOfl
Unit Offline
PBdata
Physical Block data
PC board Printed Circuit board
V
PCA
PER
PF
Printed Circuit Assembly
Post ERror
Page Format
VCM
VPD
VU
Voice Coil Motor
Vital Product Data
Vendor Unique
PLOSync Phase Lock Oscillator Syncronous
PMI
PR4ML
Partial Medium Indicator
Partial Response class 4 Maximum
Likelihood
W
W
Width
WCE
WP
Write Cache Enable
Write Protect
R
RC
Read Continuous
Read Cache Disable
Request
Relative Humidity
ReMovaBle
RCD
REQ
RH
RMB
RST
RSV
ReSeT
ReSerVed
S
S/N
SBd
SBi
SCSI
SCT
SEL
SelfTest
SG
Serial/Number
Synchronized Byte data area
Synchronized Byte identifier area
Small Computer System Interface
SeCTor
SELect
Self Test
Signal Ground
Save Page
SP
SPR
SR
SPaRe block
Servo
SSEC
STPF
SURF
Soft SECtor
SToP Format
SURFace
C141-E078-02EN
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