Page 1
MCJ3230SS
OPTICAL DISK DRIVE
PRODUCT MANUAL
C156-E224-01EN
Page 2
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.
This product is designed and manufactured for use in standard applications such as office work,
personal devices and household appliances. This product is not intended for special uses (atomic
controls, aeronautic or space systems, mass transport vehicle operating controls, medical devices for
life support, or weapons firing controls) where particularly high reliability requirements exist,
where the pertinent levels of safety are not guaranteed, or where a failure or operational error could
threaten a life or cause a physical injury (hereafter referred to as "mission-critical" use). Customers
considering the use of these products for mission-critical applications must have safety-assurance
measures in place beforehand. Moreover, they are requested to consult our sales representative
before embarking on such specialized use.
First Edition November 2001
The contents of this manual may be revised without prior notice.
The contents of this manual shall not be disclosed in any way or reproduced in any media without
the express written permission of Fujitsu Limited.
All Rights Reserved, Copyright FUJITSU LIMITED 2001
C156-E224-01EN
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Revision History
(1/1)
Edition Date
01 November,
2001
Revised section (*1)
(Added/Deleted/Altered)
——
Details
*1 Section(s) with asterisk (*) refer to the previous edition when those were deleted.
C156-E224-01EN
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This page is intentionally left blank.
Page 5
This manual describes the MCJ3230SS 90 mm (3.5-inch) optical disk drive.
This manual provides an overview of the above optical disk drives, and explains
their specifications, the requirements and procedures for installing them in a
system, and how to clean them.
The manual is intended for users who have a basic understanding of optical disk
drives and their use in computer systems.
See "Manual Organization" for details of the organization of manuals related to
optical disk drives and the scope of this manual. Use the other manuals shown in
"Manual Organization" together with this manual when necessary.
The organization of this manual, related reference manual and conventions for
alert messages follow.
Overview of Manual
This manual consists of the following six chapters, glossary, and abbreviation:
Preface
Chapter 1 General Description
This chapter introduces the MCJ3230SS optical disk drive and describes its
features, drive configuration, and system configuration.
Chapter 2 Specifications
This chapter describes the specifications of the MCJ3230SS optical disk drive and
the specifications of optical disk cartridges.
Chapter 3 Installation Requirements
This chapter describes the basic environmental, mounting, power supply, and
connection requirements for installing the MCJ3230SS optical disk drive in a user
system.
Chapter 4 Host Interface
This chapter describes the host interface of the MCJ3230SS optical disk drive.
Chapter 5 Diagnostics and Maintenance
This chapter describes how to operate and clean the MCJ3230SS optical disk
drive. This chapter also describes how to operate and clean optical disk cartridges.
Chapter 6 Diagnostics and Maintenance
This chapter describes the self-diagnostics functions and maintenance of the
MCJ3230SS optical disk drive.
C156-E224-01EN i
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Preface
Glossary
The glossary describes the technical terms that need to be understood to read this
manual.
Acronyms and Abbreviations
This manual contains a list of the abbreviations used in this manual and their
meanings.
CONVENTIONS USED IN THIS MANUAL
Throughout this manual, the MCJ3230SS optical disk drive are described as an
"ODD," "drive," "unit," "target (TARG)," or "device."
Decimal values are indicated without any modifiers added.
Hexadecimal values are indicated as X'17B9', 17B9h, 17B9H, and 17B9H.
Binary values are indicated as "010" and 010b.
Conventions for Alert Messages
This manual uses the following conventions to show the alert messages. An alert
message consists of an alert signal and alert statements. The alert signal consists
of an alert symbol and a signal word or just a signal word.
The following are the alert signals and their meanings:
This indicates a hazardous situation likely to result in
serious personal injury if the user does not perform
the procedure correctly.
This indicates a hazardous situation could result in
serious personal injury if the user does not perform
the procedure correctly.
This indicates a hazardous situation could result in
minor or moderate personal injury if the user does
not perform the procedure correctly. This alert signal
also indicates that damages to the product or other
property, may occur if the user does not perform the
product correctly.
This indicates information that could help the user
use the product more efficiently.
In the text, the alert signal is centered, followed below by the indented message.
A wider line space precedes and follows the alert message to show where the alert
message begins and ends. The following is an example:
ii C156-E224-01EN
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Attention
Preface
(Example)
Low temperature burns: The surface temperatures of some ICs
on the printed circuit board unit in the optical disk drive exceed
55°C while operating. Be careful of low tenperature burns.
The main alert messages in the text are also listed in the “Important Alert Items.”
Please forward any comments you may have regarding this manual.
To make this manual easier for users to understand, opinions from readers are
needed. Please write your opinions or requests on the Comment at the back of this
manual and forward it to the address described in the sheet.
C156-E224-01EN iii
Page 8
DISCLAIMER
Failure of the MCJ3230SS optical disk drive is defined as a failure requiring
adjustment, repair, or replacement. Fujitsu is not responsible for failure due to
misuse, operation outside the specified environment conditions, power line
trouble, controller problems, cable failure, or other failure not caused by the
optical disk drive itself.
iv C156-E224-01EN
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Important Alert Items
Important Alert Messages
The important alert messages in this manual are as follows:
A hazardous situation could result in minor or moderate personal
injury if the user does not perform the procedure correctly. Also,
damage to the product or other property, may occur if the user does not
perform the procedure correctly.
Task Alert message Page
Low temperature burns:
The surface temperatures of some ICs on the printed circuit
board unit in the optical disk drive exceed 55°C while
operating. Be careful of low tenperature burns.
Device damage:
1) Shock or vibration applied to the drive that exceeds the
values defined in the standard damage the drive. Use care
when unpacking.
2) Do not leave the drive in dirty or contaminated
environments.
3) Since static discharge may destroy the CMOS devices in
the drive, pay attention to the following points after
unpacking:
- Use an antistatic mat and wrist strap when handling
the drive.
- Hold the mounting frame when handling the drive.
Do not touch the Printed circuit board except when
setting the switches.
4) When handling the drive, hold both sides of the mounting
frame. When touching other than both sides of the
mounting frame, avoid putting force.
5) Do not forcibly push up the end of the header pin of the
printed circuit board unit when handling or setting the
drive.
3-1
3-21
C156-E224-01EN v
Page 10
Important Alert Items
Task Alert message Page
Device damage:
Be sure to turn on the power supply before inserting your
cartridge for the first time. It releases the device from
transport protection and enables you to insert the cartridge.
The device may be damaged if you insert the cartridge
without releasing the protection. From the next time, you
don't need to turn on the power supply beforehand.
Before moving the drive, remove the optical disk cartridge. If
the drive is moved with the optical disk cartridge loaded in it,
the head may move back and forth in the drive to damage the
head or disk and reading the data may fail.
• Make sure that the system power is off.
• Do not connect or disconnect any cable when the power is
on.
Device damage:
Before demounting the optical disk drive, turn off the system
power. Do not remove screws securing the cables and drive
when the power is on.
Device Damage:
Be sure to use the dedicated head cleaner described above.
Damage for data medium:
Do not use this cleaning kit for the floppy disk or the optical
disk cartridge used for other optical disk drive.
3-22
3-25
3-27
5-6
5-12
Damage for disk medium:
Clean the cartridge at clean place. Put a disposable groves at
cleaning so that the fingerprint does not put on the disk media
(recommendation).
Damage for disk medium:
At setting the cartridge to the setting case, do not apply the
heavy shock and push hardly.
Eye inflammation:
In case of contact with eyes, immediately flush eyes with
water.
Data loss:
In case of regular repair, the optical disk cartridge should not
be attached except where the cartridge causes the error. And
before having the drive repaired, save the data in the
cartridge. Fujitsu is not responsible for data lost during
maintenance or repair.
5-12
5-13
5-14
6-3
vi C156-E224-01EN
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MANUAL ORGANIZATION
OPTICAL DISK DRIVE
PRODUCT MANUAL
(C156-E224)
<This manual>
OPTICAL DISK DRIVES
MAINTENANCE MANUAL
(C156-F043)
1. GENERAL DESCRIPTION
2. SPECIFICATIONS
3. INSTALLATION REQUIREMENTS
4. HOST INTERFACE
5. OPERATION AND CLEANING
6. DIAGNOSTICS AND MAINTENANCE
1. MAINTENANCE AND DIAGNOSIS
2. FAULT ANALYSIS
3. REMOVAL AND REPLACEMENT
PROCEDURES
4. PRINCIPLES OF OPERATION
5. CLEANING
C156-E224-01EN vii
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REFERENCED STANDARDS
The product specifications and functions described in this manual conform to the
following standards:
Specification
(document) number
ANSI X3. 131-1986 American National Standard for Information
Systems-Small Computer System Interface.
ANSI X3. 131-1994
ISO/IEC 10090 90mm Optical Disk Cartridges, rewritable and
ISO/IEC 13963 Data Interchange on 90mm Optical Disk
ISO/IEC 15041 Data Interchange on 90mm Optical Disk
Cherry Book GIGAMO 1.3GB 90mm Magneto-Optical Disk
Cherry Book 2 GIGAMO 2.3GB 90mm Magneto-Optical Disk
American National Standard for Information
Systems-Small Computer System Interface-2.
read only, for data interchange.
cartridges Capacity: 230 megabytes per
cartridges.
Cartridges Capacity: 640 megabytes per
cartridges.
System.
System.
Name Concerned organization
(SCSI)
(SCSI-2)
American National
Standards Institute
(ANSI)
American National
Standards Institute
(ANSI)
ISO/IEC *1
ISO/IEC *1
ISO/IEC JTC1 *1
FUJITSU LIMITED
SONY CORPORATION
FUJITSU LIMITED
SONY CORPORATION
*1 ISO= International Organization for Standardization
IEC= International Electrical for Commission
JTC1= Joint Technical Committee 1
viii C156-E224-01EN
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Contents
Preface .........................................................................................................i
DISCLAIMER .......................................................................................................iv
MANUAL ORGANIZATION ...................................................................................vii
CHAPTER 1 General Description.................................................................. 1-1
1.1 Features ........................................................................................................1-2
1.1.1 Performance ..........................................................................................1-2
1.1.2 Reliability..............................................................................................1-3
1.1.3 Maintainability/operability....................................................................1-4
1.1.4 Adaptability........................................................................................... 1-4
1.1.5 Interface.................................................................................................1-5
1.2 Drive Configuration......................................................................................1-7
1.2.1 Drive model...........................................................................................1-7
1.2.2 Configuration ........................................................................................1-8
1.2.3 Mechanical sections ..............................................................................1-9
1.2.4 Control circuit section .........................................................................1-10
CHAPTER 2 Specifications............................................................................ 2-1
2.1 Optical Disk Drive Specifications................................................................2-1
2.1.1 Model and product number ...................................................................2-1
2.1.2 Drive specifications...............................................................................2-2
2.1.3 Environmental and power requirements................................................2-4
2.1.4 Error rate ...............................................................................................2-6
2.1.5 Reliability..............................................................................................2-6
2.2 Optical Disk Cartridge Specifications ..........................................................2-7
2.2.1 Recommended optical disk cartridge specifications .............................2-7
2.2.2 Optical disk cartridge ............................................................................2-8
2.2.3 Disk specifications ................................................................................2-9
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Contents
2.3 Defect Management ....................................................................................2-11
2.3.1 Defect management schematic diagram ..............................................2-11
CHAPTER 3 Installation Requirements.........................................................3-1
3.1 Environmental Requirements .......................................................................3-1
3.1.1 Temperature measurement point ...........................................................3-1
3.1.2 Temperature requirements and measuring method................................3-3
3.1.3 Air flow .................................................................................................3-3
3.1.4 Temperature rise under several conditions............................................3-4
3.1.5 Air purity ...............................................................................................3-4
3.2 Mounting Requirements ...............................................................................3-5
3.2.1 External dimensions ..............................................................................3-5
3.2.2 Installation direction..............................................................................3-7
3.2.3 Centers of gravity ..................................................................................3-8
3.2.4 Notes on mounting.................................................................................3-9
3.3 Power Supply Requirements.......................................................................3-11
3.4 Cable Connections ......................................................................................3-12
3.4.1 Drive connectors..................................................................................3-12
3.4.2 Cable connector specifications ............................................................3-15
3.4.3 Connection Modes...............................................................................3-16
3.5 Settings .......................................................................................................3-18
3.5.1 Default jumper settings........................................................................3-18
3.5.2 Setting terminal....................................................................................3-18
3.6 Notes on Drive Handling ............................................................................3-21
3.7 Mounting.....................................................................................................3-24
3.7.1 Checks before mounting the drive .......................................................3-24
3.7.2 Mounting procedure ............................................................................3-24
3.8 Cable Connections ......................................................................................3-25
3.9 Operation Confirmation and Preparation for Use after Installation............3-26
3.9.1 Confirming initial operations...............................................................3-26
3.9.2 Connection check ................................................................................3-27
3.10 Dismounting Drive .....................................................................................3-27
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CHAPTER 4 Host Interface............................................................................ 4-1
4.1 Interface Connector ......................................................................................4-1
4.2 Various Processes.........................................................................................4-4
4.2.1 Reset response.......................................................................................4-4
4.2.2 Defective sector management ...............................................................4-4
4.2.3 Automatic alternate sector assignment function....................................4-4
4.2.4 Cache function.......................................................................................4-5
4.2.4.1 Data buffer ....................................................................................4-5
4.2.4.2 Read cache ....................................................................................4-5
4.2.4.3 MO write cache ............................................................................. 4-6
4.2.5 Power management function .................................................................4-6
4.2.6 Power mode...........................................................................................4-6
4.2.6.1 Active mode ..................................................................................4-7
4.2.6.2 Pre-idle mode ................................................................................4-7
4.2.6.3 Idle mode.......................................................................................4-7
4.2.6.4 Standby mode................................................................................ 4-7
4.2.6.5 Standby timer ................................................................................4-7
4.2.6.6 Power mode transition...................................................................4-8
4.2.7 LED indications.....................................................................................4-9
4.3 SCSI Commands ........................................................................................4-10
4.3.1 TEST UNIT READY command .........................................................4-11
4.3.2 INQUIRY............................................................................................4-11
4.3.3 READ CAPACITY command ............................................................4-13
4.3.4 MODE SELECT command.................................................................4-13
4.3.5 MODE SENSE command ...................................................................4-22
4.3.6 START/STOP UNIT command..........................................................4-24
4.3.7 RESERVE command ..........................................................................4-25
4.3.8 RELEASE command...........................................................................4-26
4.3.9 REQUEST SENSE command.............................................................4-26
4.3.10 PREVENT/ALLOW MEDIUM REMOVAL command ....................4-31
4.3.11 READ (6) command............................................................................4-32
4.3.12 READ (10) command..........................................................................4-32
4.3.13 VERIFY command..............................................................................4-33
4.3.14 WRITE (6) command.......................................................................... 4-33
4.3.15 WRITE (10) command........................................................................ 4-34
4.3.16 WRITE AND VERIFY .......................................................................4-34
4.3.17 SEEK (6) command.............................................................................4-35
4.3.18 SEEK (10) command...........................................................................4-35
4.3.19 ERASE command ...............................................................................4-36
4.3.20 SYNCHRONIZE CACHE command .................................................4-36
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Contents
4.3.21 FORMAT UNIT command .................................................................4-37
4.3.22 READ DEFECT DATA command .....................................................4-38
4.3.23 SEND DIAGNOSTIC command.........................................................4-39
4.3.24 RECEIVE DIAGNOSTIC RESULTS command................................4-39
4.3.25 WRITE BUFFER command................................................................4-40
4.3.26 READ LONG command .....................................................................4-41
4.3.27 WRITE LONG command....................................................................4-41
4.4 SCSI Messages ...........................................................................................4-42
4.4.1 Message formats..................................................................................4-42
4.4.2 Message types......................................................................................4-42
4.4.3 Message functions ...............................................................................4-43
4.5 Timing Rule................................................................................................4-46
CHAPTER 5 Operation and Cleaning............................................................5-1
5.1 Operating Optical Disk Drive .......................................................................5-1
5.1.1 Optical disk drive...................................................................................5-2
5.1.2 Note .......................................................................................................5-3
5.1.3 Inserting cartridge ..................................................................................5-3
5.1.4 Ejecting (removing) cartridge................................................................5-5
5.2 Cleaning Drive..............................................................................................5-6
5.3 Optical Disk Cartridge Operation.................................................................5-7
5.3.1 Optical disk cartridge.............................................................................5-7
5.3.2 Write protect tab....................................................................................5-8
5.3.3 How to affix an index label on the MO cartridge..................................5-9
5.3.4 Notes......................................................................................................5-9
5.4 Cleaning Optical Disk Cartridge.................................................................5-11
5.4.1 Cleaning tool .......................................................................................5-11
5.4.2 Cleaning procedure..............................................................................5-12
CHAPTER 6 Diagnosis and Maintenance .....................................................6-1
6.1 Diagnosis ......................................................................................................6-1
6.1.1 Initial self-diagnosis ..............................................................................6-1
6.1.2 Diagnostic command.............................................................................6-2
6.1.3 Test program..........................................................................................6-2
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6.2 Maintenance Information .............................................................................6-3
6.2.1 Maintenance requirements ....................................................................6-3
6.2.2 Revision number ...................................................................................6-4
Glossary ……………………………………………………………………….GL-1
Abbreviations …….…………………………………………………………………AB-1
Index ………………………………………………………………………...IN-1
C156-E224-01EN xiii
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Illustrations
Figures
Figure 1.1 Outer view (with panel) .....................................................................................1-7
Figure 1.2 Outer view (without panel)................................................................................1-7
Figure 1.3 Optical disk drive configuration ........................................................................1-8
Figure 1.4 Control circuit section block diagram..............................................................1-10
Figure 2.1 Optical disk cartridge.........................................................................................2-8
Figure 2.2 Algorithms for alternate processing.................................................................2-11
Figure 2.3 Example of alternate processing ......................................................................2-12
Figure 3.1 Surface temperature measurement points ..........................................................3-2
Figure 3.2 Dimensions ........................................................................................................3-5
Figure 3.3 Dimensions (without panel)...............................................................................3-6
Figure 3.4 Installation directions.........................................................................................3-7
Figure 3.5 Centers of gravity...............................................................................................3-8
Figure 3.6 Mounting frame structure ..................................................................................3-9
Figure 3.7 Service clearance .............................................................................................3-10
Figure 3.8 Current waveform (+5 VDC)...........................................................................3-11
Figure 3.9 Connector and terminal locations ....................................................................3-12
Figure 3.10 Location of setting terminal.............................................................................3-12
Figure 3.11 Shape of setting terminal .................................................................................3-13
Figure 3.12 SCSI bus connection modes ............................................................................3-16
Figure 3.13 SCSI bus connecti on modes ...........................................................................3-17
Figure 3.14 Setting terminal (CNH2) .................................................................................3-18
Figure 3.15 Packing style....................................................................................................3-23
Contents
Figure 4.1 SCSI interface connector (ODD side)................................................................4-1
Figure 4.2 SCSI interface connector (cable side)................................................................4-2
Figure 4.3 Power mode .......................................................................................................4-8
Figure 4.4 BUS FREE phase.............................................................................................4-49
Figure 4.5 ARBITRATION phase ....................................................................................4-50
Figure 4.6 SELECTION phase..........................................................................................4-51
Figure 4.7 RESELECTION phase.....................................................................................4-51
Figure 4.8 Transfer in asynchronous mode .......................................................................4-52
Figure 4.9 Transfer in FAST SCSI mode..........................................................................4-53
Figure 4.10 ATTENTION condition...................................................................................4-54
Figure 5.1 Optical disk drive front view (with panel) .........................................................5-2
Figure 5.2 Inserting cartridge..............................................................................................5-4
Figure 5.3 Removing cartridge............................................................................................5-5
Figure 5.4 Optial disk cartridge...........................................................................................5-7
Figure 5.5 Write protect tab ................................................................................................5-8
Figure 5.6 How to stick an index label on the MO cartridge ..............................................5-9
Figure 5.7 Cleaning procedure (1) ....................................................................................5-12
Figure 5.8 Cleaning procedure (2) ....................................................................................5-13
Figure 5.9 Cleaning procedure (3) ....................................................................................5-13
Figure 5.10 Cleaning procedure (4) ....................................................................................5-14
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Figure 6.1 Revision label ....................................................................................................6-4
Figure 6.2 Revision number indication...............................................................................6-4
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Tables
Table 2.1 Model and order number....................................................................................2-1
Table 2.2 Specifications (1 of 2)........................................................................................2-2
Table 2.2 Specifications (2 of 2)........................................................................................2-3
Table 2.3 Environmental and power requirements (1 of 2) ...............................................2-4
Table 2.3 Environmental and power requirements (2 of 2) ...............................................2-5
Table 2.4 Power consumption in power save mode
when the temperature inside the drive is 20°C or lower ....................................2-5
Table 2.5 Recommended optical disk cartridge specifications..........................................2-7
Table 2.6 Disk specifications...........................................................................................2-10
Table 3.1 Temperature requirements at measurement points ............................................3-3
Table 3.2 Temperature at each measuring point (Reference) ............................................3-4
Table 3.3 Pin assignments................................................................................................3-14
Table 3.4 Recommended components for connection .....................................................3-15
Table 3.5 SCSI ID setting (CNH2) ..................................................................................3-18
Table 3.6 SCSI terminating resistor mode.......................................................................3-19
Table 3.7 Write cache mode setting.................................................................................3-19
Table 3.8 Spindle motor automatic stop mode setting.....................................................3-20
Contents
Table 4.1 SCSI interface connector pin assignments (single-ended type) .........................4-3
Table 4.2 LED indications .................................................................................................4-9
Table 4.3 SCSI commands...............................................................................................4-10
Table 4.4 TEST UNIT READY command......................................................................4-11
Table 4.5 INQUIRY command........................................................................................4-11
Table 4.6 INQUIRY command response data .................................................................4-12
Table 4.7 READ CAPACITY command.........................................................................4-13
Table 4.8 READ CAPACITY data..................................................................................4-13
Table 4.9 MODE SELECT command .............................................................................4-13
Table 4.10 Mode page codes .............................................................................................4-14
Table 4.1 Mode parameter list .........................................................................................4-14
Table 4.12 Mode parameter header....................................................................................4-14
Table 4.13 Block descriptor...............................................................................................4-15
Table 4.14 Mode page........................................................................................................4-15
Table 4.15 Read/write error recovery page........................................................................4-15
Table 4.16 Variable values in the read-write error recovery page.....................................4-16
Table 4.17 Default values in the read-write error recovery page.......................................4-16
Table 4.18 Flexible disk page ............................................................................................4-17
Table 4.19 Variable values in the flexible disk page .........................................................4-18
Table 4.20 Default values in the flexible disk page...........................................................4-18
Table 4.21 Caching page....................................................................................................4-19
Table 4.22 Variable values in the Caching Page ...............................................................4-19
Table 4.23 Default values in the Caching Page .................................................................4-19
Table 4.24 Power condition page.......................................................................................4-19
Table 4.25 Variable values in the Power condition page...................................................4-20
Table 4.26 Default values in the Power condition page.....................................................4-20
Table 4.27 Verify control page ..........................................................................................4-20
Table 4.28 Verify mode .....................................................................................................4-21
Table 4.29 Variable values in the Verify control page ......................................................4-21
Table 4.30 Default values in the Verify control page ........................................................4-21
xvi C156-E224-01EN
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Table 4.31 MODE SENSE command................................................................................4-22
Table 4.32 Page control field.............................................................................................4-22
Table 4.33 Mode parameters .............................................................................................4-23
Table 4.34 Mode Parameter Header.................................................................................. 4-23
Table 4.35 Block Descriptor..............................................................................................4-23
Table 4.36 Mode Page .......................................................................................................4-24
Table 4.37 START/STOP UNIT command ......................................................................4-24
Table 4.38 Start, stop, and eject processing.......................................................................4-24
Table 4.39 RESERVE command.......................................................................................4-25
Table 4.40 RELEASE command.......................................................................................4-26
Table 4.41 REQUEST SENSE command .........................................................................4-26
Table 4.42 Request Sense Data .........................................................................................4-27
Table 4.43 Error Code .......................................................................................................4-27
Table 4.44 Sense Key ........................................................................................................4-28
Table 4.45 Logical track address format ...........................................................................4-28
Table 4.46 ASC and ASCQ definitions.............................................................................4-29
Table 4.47 Format progress indication bytes ..................................................................... 4-30
Table 4.48 PREVENT/ALLOW MEDIUM REMOVAL command................................. 4-31
Table 4.49 Responses to Prevent, Allow, and Eject ..........................................................4-31
Table 4.50 CDB of READ (6) command ..........................................................................4-32
Table 4.51 READ (10) command......................................................................................4-32
Table 4.52 VERIFY command .......................................................................................... 4-33
Table 4.53 CDB of WRITE (10) command.......................................................................4-33
Table 4.54 WRITE (10) command ....................................................................................4-34
Table 4.55 WRITE AND VERIFY command...................................................................4-34
Table 4.56 SEEK (6) command......................................................................................... 4-35
Table 4.57 SEEK (10) command....................................................................................... 4-35
Table 4.58 ERASE command............................................................................................ 4-36
Table 4.59 SYNCHRONIZE CACHE command..............................................................4-36
Table 4.60 FORMAT UNIT command .............................................................................4-37
Table 4.61 FORMAT UNIT parameter list .......................................................................4-37
Table 4.62 Defect List Header........................................................................................... 4-37
Table 4.63 READ DEFECT DATA command .................................................................4-38
Table 4.64 Defect List Format of READ DEFECT DATA (10) command ......................4-38
Table 4.65 Defect list header of READ DEFECT DATA (10) command ........................4-38
Table 4.66 Defect descriptor..............................................................................................4-39
Table 4.67 Sector address format ......................................................................................4-39
Table 4.68 SEND DIAGNOSTIC command..................................................................... 4-39
Table 4.69 RECEIVE DIAGNOSTIC RESULTS command ............................................ 4-39
Table 4.70 WRITE BUFFER command............................................................................4-40
Table 4.71 READ LONG command .................................................................................4-41
Table 4.72 WRITE LONG command................................................................................4-41
Table 4.73 Types of messages provided by ODD .............................................................4-42
Table 4.74 Transfer mode settings requested by INIT to ODD.........................................4-45
Table 4.75 Timing specifications (1 of 3)..........................................................................4-46
Table 4.75 Timing specifications (2 of 3)..........................................................................4-47
Table 4.75 Timing specifications (3 of 3)..........................................................................4-48
Table 4.76 FAST SCSI Timing specifications ..................................................................4-49
Table 5.1 Head cleaner ......................................................................................................5-6
Table 5.2 Cleaning kit......................................................................................................5-11
Table 5.3 Packed items (cleaning kit)..............................................................................5-11
Table 6.1 Self-diagnostic function.....................................................................................6-1
C156-E224-01EN xvii
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Page 23
CHAPTER 1 General Description
1.1 Features
1.2 Drive Configuration
This chapter describes the features and configuration of the optical disk drives.
The MCJ3230SS (hereafter, the optical disk drive) is the successor model to the
MCE3130SS. This optical disk drive, which maintains compatibility with the
MCE3130SS, offers high performance and high capacity. Supporting 2.3 GB of
storage capacity, this device delivers superior performance with a 5,455-rpm
rotational speed, and supports security functions.
The optical disk drive is high-performance, 90 mm (3.5-inch) commutative
rewritable optical disk drive which incorporates an SCSI controller.
The interface connecting the optical disk drive to the host system complies with
the SCSI-2.
The flexibility and expandability through SCSI I/F, the high performance of the
optical disk drive, and the drive's commands set enable the user to construct highreliability, high-performance disk subsystems with advanced functions and largescale storage.
C156-E224-01EN 1-1
Page 24
General Description
1.1 Features
This section describes the following drive features:
•
Performance
•
Reliability
•
Maintainability/operability
•
Adaptability
•
Interface
1.1.1 Performance
(1) Half-height standard 90 mm (3.5-inch) size (25.4 mm height)
The SCSI controller can be connected to the system SCSI bus. The controller
meets the specifications of the standard 25.4 mm height 90 mm
(3.5-inch) fixed disk drive form factor.
(2) 2.3 GB capacity
The optical disk drive conforms to the 2.3 GB GIGAMO standard. It also
supports read and write accesses to 128 MB, 230 MB, 540 MB, 640 MB, and 1.3
GB disks.
(3) High-speed data transfer
The optical disk drive supports a disk media rotational speed of 3,637 rpm when
using 2.3 GB disks. The device supports a rotational speed of 5,455 rpm (ZCAV)
when using a 128 MB, 230 MB, 540 MB, or 640 MB disks. When using 1.3 GB
disks, the optical disk drive supports ZCAV mode with a rotational speed of 3,637
rpm, and ZCLV mode that controls the speed at three levels: 3,637/4, 138/4,801
rpm, in accordance with the position of the optical head.
In ZCLV mode, the optical disk drive speeds up by detecting continuous accessing
of inner disk tracks to prevent a reduction of inner disk rotation.
For random accesses, the optical disk drive switches to ZCAV mode that is fixed
to 3,637 rpm to prevent access performance degradation.
In the disk unit, high-speed data transfers at rates of 4.62 to 8.26 MB/s (2.3 GB)
are realized. The maximum data transfer rate on the SCSI bus is 20 MB/s in
synchronous transfer mode.
The SCSI bus high-speed data transfer capacity can be used effectively through
the optical disk unit's large capacity data buffer.
1-2 C156-E224-01EN
Page 25
(4) High-speed mean seek time
This drive features a linear voice-coil motor for high-speed head positioning. The
average seek time is the average of 1,000 random seeks and is 19 ms. (However,
this does not include command overhead or address check.)
(5) Compatible with international standards (media interchangeability)
90 mm (3.5 inch) type optical disks as well as ISO standards compatible 128 MB,
230 MB, 540 MB and 640 MB format optical disk media can be used in the optical
disk unit.
(6) Direct-overwrite medium support
The drive can use an optic modulation direct-overwrite disk that does not perform
an erase operation; 230-MB disk, 540-MB disk with the ISO standard.
(7) Dust resistance
The optical disk unit provides low-power consumption, eliminating the need for a
cooling fan. The top of the cartridge is sealed with film, and the bottom of the
optical disk unit is sealed with sheet metal, providing protection that is not
complicated.
1.1 Features
The optical disk drive needs class 5 millions or less of the dust particles.
(8) Lower power consumption
The power consumption of the optical disk drive is 6.5 W (These power
consumption values are typical values during read and write operation.) These
drives do not use a fan.
The minimum power consumption is 1.0 W (typical value) during power save.
(9) Automatic spindle stop function
If access is not made within a certain time, this function stops disk rotation to
minimize dust accumulation on the disk. This function can be set that time by the
MODE SELECT command.
1.1.2 Reliability
(1) Mean time between failures (MTBF)
This drive features a 120,000 hour MTBF.
(2) Error recovery
For the error depending on the optical disk drive, recovery process is made by a
suitable retry. This drive features Reed-Solomon error correction (ECC) to assure
error-free operation.
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General Description
(3) Automatic allocation of alternate data blocks
This drive features a function which automatically allocates alternate data blocks
to defective data blocks detected while data is being read from or written to an
optical disk.
1.1.3 Maintainability/operability
(1) Diagnostic function
This drive has a diagnostic function to check optical disk drive operations. The
diagnostic function facilitates test and restoration.
(2) Five-year service life (no overhaul)
This drive will not require overhaul within the first five years of installation if
appropriately handled, maintained, and cleaned as recommended.
1.1.4 Adaptability
(1) Wide operating environment
An LSI circuits reduce power consumption. This drive features a wide operating
environment (5 to 45°C, general office environment). Dust particles are class 5
millions or less.
(2) Vibration resistance (shock resistance)
Rubber vibration isolators protect the drive against external shock or vibration.
(3) Safety standards
•
UL1950 (U.S.A., safety)
•
CDRH class 1 (U.S.A., laser)
•
CSA C22.2 No. 950 (Canada, safety)
•
EN60950 (Europe, safety)
•
EN60825 Class 1 (Europe, laser)
(4) Various radio wave standards
This optical disk device is installed in a host system, and meets the following
standards:
•
EN55022 class B, EN55024 (European wave standards)
•
AS/NZS3548 class B (Australian wave standards)
•
CNS13438 (Taiwanese radio interference standard)
1-4 C156-E224-01EN
Page 27
1.1.5 Interface
(1) Conformance to SCSI-2
(2) Continuous block processing
(3) Data buffer
1.1 Features
This optical disk device supports the basic functions of SCSI-2.
SCSI commands enable data manipulation using logical block addresses that are
independent of the physical attributes of the optical disk device, enabling software
flexibility in terms of system expansion in the future.
Logical block addresses are used for data block addressing. Without consideration
of the physical attributes of track boundaries, the host can access data by
specifying a block number in logically continuous data space.
7,600 KB buffer is used to transfer data between the SCSI bus and disk. Since
data is stored in this buffer, the host can execute input-output processing
effectively by using the high-speed data transfer capability of the SCSI bus
without regard to the data transfer rate of the optical disk drive.
(4) Read-ahead cache feature
The read-ahead cache feature enables high-speed sequential data access as
follows:
After executing a command to read data from the disk, the drive automatically
reads the next data block and stores it in the data buffer (pre-reading). If the next
command requests this data, the data is transferred from the buffer without another
disk access.
(5) Write cache feature
When the host system issues the write command to the optical disk drive, a
command complete is usually responded after completion of the write and verify
operations. By using the write cache feature, a command complete is responded
after completion of the data transfer to the data buffer without waiting the
completion of the write and verify operations then the write and verify operations
are made asynchronously with the interface operation. Therefore, the apparent
write command processing time measured at the host system is reduced and the
I/O performance of the host system is improved.
The write cache feature is enabled or disabled by MODE SELECT command.
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General Description
(6) Defective block slipping
When a disk is initialized, logical data blocks are reallocated in a physical
sequence by slipping defective data blocks. This enables high-speed continuous
data block processing without rotational delay due to defective data blocks.
(7) Device driver software
The optical disk drive requires more extended processing time than conventional
optical device drives because of higher density. Consequently, a processing time
timeout when using the OS can occur and this requires special device driver
software.
When the write cache feature is enabled, a write error is reported at
the completion status of next command. At a system so that the host
retries the command, a retry process may be failed.
1-6 C156-E224-01EN
Page 29
1.2 Drive Configuration
1.2.1 Drive model
Figures 1.1 and 1.2 show the outer view.
1.2 Drive Configuration
Figure 1.1 Outer view (with panel)
Figure 1.2 Outer view (without panel)
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General Description
1.2.2 Configuration
Figure 1.3 shows the drive configuration.
The drive consists of mechanical sections, a fixed optics section, actuator, and a
control circuit section. The mechanical sections include the spindle motor,
actuator section, bias magnet, and the cartridge folder vertical motion mechanism.
The fixed optics section consists of the optical components, position detector, and
LD controller.
The control circuit sections include the drive control circuit section and SCSI
controller section.
Spindle motor
Optical disk cartridge
Figure 1.3 Optical disk drive configuration
Control circuit section
Fixed optics sectionActuator section
1-8 C156-E224-01EN
Page 31
1.2.3 Mechanical sections
(1) Optical disk cartridge load/eject
The system includes a cartridge mechanism which lowers the optical disk cartridge
and mounts (loads) it on the spindle motor automatically when the optical disk
cartridge is fully inserted in the optical disk drive's disk slot, and a mechanism
which automatically ejects the cartridge when the Eject button on the front panel is
pressed.
(2) Spindle motor
Optical disk cartridge hubs are linked through magnetic clamps to minimize
slippage between the spindle motor shaft and disk. The spindle motor is the direct
drive type which rotates the disk at the same speed as the spindle motor shaft. A
DC brushless spindle motor is used. The spindle motor rotates at 5,455 rpm ±
0.1%.
(3) Actuator section
1.2 Drive Configuration
The positioner moves (seeks) a head actuator radically across the disk surface.
The positioner is driven by a linear voice coil motor. A pulse-width modulation
(PWM) is adopted as a driving system and realizes low power consumption and
high-speed access.
(4) Separate optical sections
The optical head section is separated in such a way that the fixed optics section
is separated from the moving optics section to minimize seek time and positioning
error. (See Subsection 1.2.4 for the fixed optical section.) This reduces the weight
of the moving parts.
The fixed optics section consists of the laser diodes, collimator lens, and optical
detector.
The fixed optics section includes a laser diode for recording and playback, and
transmits one laser beam to the head actuator.
(5) Panel
The central part of the panel is hollowed out deeply to provide pushing finger
space for inserting the cartridge, thereby facilitating the insertion.
The panel is also simply designed by making the eject button and LED light
emitting part integral with each other.
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General Description
1.2.4 Control circuit section
Figure 1.4 is the block diagram of the control circuit section.
Figure 1.4 Control circuit section block diagram
The control circuit section is divided into two parts: a controller section which
deals with control between the SCSI interface and drive interface, and a drive
circuit section which controls the drive.
(1) Controller circuit section
The controller circuit's reliability is improved by large-scale integrated circuit
technology. The high-speed microprocessor (MPU) handles SCSI interface
control and drive control such as drive read-and-write control and single-beam
control.
(2) Drive circuit section
The drive circuit section consists of the following circuits:
•
Laser diode control circuit
•
Signal reproduction circuit
•
Servo/seek control circuit
•
Rotation control circuit
•
Drive miscellaneous control circuit
1-10 C156-E224-01EN
Page 33
1.2 Drive Configuration
The DSP (digital signal processor) is used for the servo/seek control circuit to
reduce the circuit amount, therefore this circuit is a simple configuration.
The drive circuit section executes operations such as seek, erase, record, and
playback while the MPU controls the focus-tracking of the beam.
C156-E224-01EN 1-11
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Page 35
CHAPTER 2 Specifications
2.1 Optical Disk Drive Specifications
2.2 Optical Disk Cartridge Specifications
2.3 Defect Management
This chapter contains the specifications of the optical disk drive, and the optical
disk cartridge.
2.1 Optical Disk Drive Specifications
2.1.1 Model and product number
Table 2.1 lists the model and order number.
Table 2.1 Model and order number
Model Name Order No. Panel Panel Color Mounting Screws
MCJ3230SS CA05890-B001 with panel Light gray
(2.5Y 7.2/0.4)
CA05890-B201 without panel
CA05890-B101 with panel Light gray
(2.5Y 7.2/0.4)
Note: The panel colors (2.5Y 7.2/0.4) are indicated in Munsell symbols. (JIS
Z8721)
Metric screws (M3)
Metric screws (M3)
Metric screws (M3)
C156-E224-01EN 2-1
Page 36
Specifications
2.1.2 Drive specifications
Table 2.2 lists MCJ3230SS drive specifications
Table 2.2 Specifications (1 of 2)
Item Specifications
Optical disk cartridge 128 MB media 230 MB media 540 MB media 640 MB media 1.3 GB media 2.3 GB media
Total capacity Unformatted
Formatted
Capacity/track Unformatted
Formatted
Capacity/sector Unformatted
Formatted
Number of user tracks/side *1
Number of alternate sectors/side
Number of sectors/track
Data transfer rate
Random seek time *2
Average latency
Rotational speed
Heads
Positioner type
Servo tracking method
181 MB 325 MB 819 MB 818 MB 1.683 GB 2.901 GB
128 MB 230 MB 538 MB 643 MB 1.283 GB 2.261 GB
18,100 bytes 18,100 bytes
12,800 bytes 12,800 bytes
725 bytes 778 bytes 778 bytes 2,584 bytes 2,694 bytes 2,766 bytes
10,000 17,940 42,042 18,480 36,855 64,944
≤ 1,024 ≤ 1,025 ≤ 2,250 ≤ 2,244 ≤ 4,437 ≤ 8,976
1.65 MB/s (max.)
0.39 MB/s
continuous
writing (effective)
1.16 MB/s
continuous
reading (effective)
(logical track
capacity)
(logical track
capacity)
512 bytes 2,048 bytes
25 17
2.00 to 3.16 MB/s
(max.)
0.47 to 0.75 MB/s
continuous
writing (effective)
1.40 to 2.23 MB/s
continuous
reading (effective)
19,450 bytes
(logical track
capacity)
12,800 bytes
(logical track
capacity)
3.45 to 5.94 MB/s
(max.)
0.78 to 1.30 MB/s
continuous
writing (effective)
2.33 to 3.91 MB/s
continuous
reading(effective)
5.5 ms 8.2 ms
5.455 rpm 3,637 rpm
Positioner + Separete Optical Section
Linear voice coil motor
ISO continuous servo method
3.52 to 5.87 MB/s
0.93 to 1.55 MB/s
writing (effective)
2.79 to 4.66 MB/s
reading (effective)
19 ms (typ)
43,928 bytes
(logical track
capacity)
34,816 bytes
(logical track
capacity)
(max.)
continuous
continuous
45,798 bytes
(logical track
capacity)
34,816 bytes
(logical track
capacity)
3.92 to 6.70 MB/s
(max.)
0.99 to 1.70 MB/s
continuous
writing (effective)
2.98 to 5.09 MB/s
continuous
reading (effective)
5.17 to 6.70 MB/s
(ZCLV max.)
continuous
writing
(ZCLV effective)
1.31 to 1.70 MB/s
continuous
reading
(ZCLV effective)
3.93 to 5.09 MB/s
7.2 ms (ZCLV)
6.3 ms (ZCLV)
4,138 rpm
(ZCLV)
4,801 rpm(ZCLV)
47,022 bytes
(logical track
34,816 bytes
(logical track
4.69 to 8.38 MB/s
1.16 to 2.07 MB/s
writing (effective)
3.84 to 6.21 MB/s
reading (effective)
capacity)
capacity)
(max.)
continuous
continuous
8.2 ms
3,637 rpm
2-2 C156-E224-01EN
Page 37
2.1 Optical Disk Drive Specifications
Table 2.2 Specifications (2 of 2)
Item Specifications
Optical disk cartridge 128 MB media 230 MB media 540 MB media 640 MB media 1.3 GB media 2.3 GB media
Density
Loading time *3
Unloading time *4
Load/unload life
Host interface
Data Transfer Model and rates
Data buffer
Error correction *5
24,424 bpi
(1.04µm/bit)
15,875 tpi
29,308 bpi
(0.87µm/bit)
18,275 tpi
52,900 bpi
(0.48µm/bit)
23,090 tpi
8 sec. (typ) 12 sec. (typ) 14 sec. (typ)
4 sec. (typ)
20,000
SCSI (SCSI-2 standard)
Asynchronous transfer 5MB/s
Synchronous transfer 20MB/s
7,600 KB
Correctable up to 8-byte/interleave
Bit error rate: 10
-12
or less
89,100 bpi
(0.285µm/bit)
28,200 tpi
112,474 bpi
(0.228µm/bit)
37,910 tpi
*1 The number of user tracks indicates the maximum user zone which includes
the spare area and slipping area.
*2 Mathematical average of 1,000 times of seek and does not include command
overhead nor track address recognition time. Furthermore, it may depend
on the quality of media and drive installation environment.
*3 Loading time is the time from when the optical disk cartridge is inserted to
when the optical disk drive is ready.
*4 Unloading time is the time from when the eject button is pressed or the eject
command is issued to when the optical disk cartridge is ejected.
-12
*5 Thebiterrorratemustbe10
-4
or less is used.
10
or less when a disk whose raw error rate is
C156-E224-01EN 2-3
Page 38
Specifications
2.1.3 Environmental and power requirements
Table 2.3 lists the environmental and power requirements.
Table 2.3 Environmental and power requirements (1 of 2)
Item Specification
Power
requirements
Power
consumption
(Average)
Average +5 VDC±5%, 1.4 A (2.5 A Max.) *1
Ripple requirement 100mV P-P (DC-1 MHz)
Ready (active mode) 4.8 W (typical) *2
Random seek, read/ write 6.5 W (typical) *2
Physical Format 7.3 W (typical) *2
Power save mode
Dimensions
(W×D×H)
Pre-idle mode
Idle mode
Standby mode
With panel
Without panel
4.0 W (typical) *2
2.0 W (typical) *2
1.0 W (typical) *2
101.6 × 150.0 × 25.4 mm
101.6 × 148.4 × 25.4 mm
Weight 480 g (with panel)
Environmental
requirements
Operating Temperature: 5 to 45°C *3
(gradient 15°C /h or less)
Relative humidity: 10 to 85% (Noncondensing)
Max. wet bulb temperature: 29°C or lower
Non Operating Temperature: 0 to 50°C
Relative humidity: 10 to 85% (Noncondensing)
Max. wet bulb temperature: 36°C or lower
Transport Temperature: -40 to 60°C (24 hours or less)
Temperature: -20 to 60°C (24 hours or more)
Relative humidity: 5 to 90% (Non condensing)
Max. wet bulb temperature: 41°C or lower
Installation Tilt angle -5° to +10° *3
Vibration/
shock
Operating 3.9 m/s2(5 to 500 Hz, sine sweep)
1.96 m/s
2
(5 to 500 Hz, sine sweep AV record/play)
2
(10ms, half-sine pulse)
2
(10 ms, half-sine pulse)
Non Operating
No cartridge, power ON
Shock 19.6 m/s
9.8 m/s2(5 to 500 Hz, sine sweep)
Shock 49 m/s
Transport Shock 490 m/s2(10 ms, half-sine pulse)
Requirement: Packing conditions specified by
Fujitsu
2-4 C156-E224-01EN
Page 39
2.1 Optical Disk Drive Specifications
Table 2.3 Environmental and power requirements (2 of 2)
Item Specification
Altitude Operating 3,000 m (10,000 ft) or less
Non Operating 12,000 m (40,000 ft) or less
Air flow Unused *4Ambient for
purity
Air purity General office environment or better
(dust perticles: Class 5 millions or less)
Note:
*1 At random seek or read/write. Excluding pulse waveform under 500 us or
less.
*2 It demonstrates in an installation environment of a temperature of 25°C,
voltage of 5 V.
See Section 4.4.8 for information on the power management function.
*3 The efficiency is specified in an environment of a temperature of 25°C and
0° horizontal level placement.
*4 For details, refer to section 3.1.3 'Air Flow'
1. Current limiter value for +5 VDC power: 5 A or less
2. Specifications under transporting condition are under the packaging specified
by Fujitsu.
3. A voltage drop may occur depending on the used power supply or power
cable.
4. If power for the terminators in the other SCSI devices is supplied via an
optical disk drive, note that the current of the +5VDC power for the optical
disk drive may increase by a maximum of 200 mA. The method of supplying
power to terminators cannot be changed.
5. Table 2.4 lists power consumption in power save mode when the temperature
inside the drive is 20°C or lower.
Table 2.4 Power consumption in power save mode when the temperature inside the
drive is 20°C or lower
IETM Power consumption at 20°C or lower
Pre-idle mode 4.0W (typ)
Power consumption in
power save mode
Idle mode 2.0W (typ)
Standby mode 1.0W(typ)
6. If the temperature inside the drive is 14°C or lower, disk access might become
longer because the speed of the related mechanisms varies with temperature.
C156-E224-01EN 2-5
Page 40
Specifications
2.1.4 Error rate
Data blocks to be accessed are evenly distributed on the disk. Errors due to disk
defects are not included.
(1) Bit error rate after ECC processing
The error rate after ECC processing must be 10
whose raw error rate is 10
(2) Positioning error rate
The positioning error rate must be 10
2.1.5 Reliability
(1) Mean time between failures (MTBF)
The MTBF is 120,000 hours or more. Failure due to disk errors is not included.
Conditions
-4
or less should be used.
-6
or less. (with retry)
-12
or less. An optical disk cartridge
•
Power-on time: 200 hours/month or less
•
LD-on time: 20% or less of power-on time
•
Environment Temp.: 25°C
Note:
The MTBF is defined as follows:
(2) Service Life
Under appropriate handling and operation, disk cleaning and optical head
cleaning, overhaul of the drive is not required for the first five years.
total operating time in all fields (hours)
MTBF=
number of device failure in all fields
- Operating time is the total time power is applied.
- Device failures indicate that devices require repair, readjustment, or
replacement. Failure due to external factors such as minor defects
during device handling, operation outside environmental
specifications, power failure, host system errors, and interface cable
errors are not included.
(3) Data security at power failure
Except for the data of the block to which write operation is in progress, all data on
the disk is secure from power failure. This does not apply if power failure occurs
during disk initialization (formatting) or defect processing (alternate block
allocation).
2-6 C156-E224-01EN
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2.2 Optical Disk Cartridge Specifications
2.2 Optical Disk Cartridge Specifications
2.2.1 Recommended optical disk cartridge specifications
The following three disk types comply with the specifications.
Table 2.5 shows the specifications of the optical disk cartridge recommended for
this optical disk drive. The use of another disk cartridge may lower drive
performance.
Table 2.5 Recommended optical disk cartridge specifications
Model Order number Figure number
Optical disk cartridge (128 MB) 0242110 CA90002-C010
Optical disk cartridge (230 MB) 0242210 CA90002-C011
Optical disk cartridge (540 MB) 0242410 CA90002-C012
Optical disk cartridge (640 MB) 0242610 CA90002-C013
Optical disk cartridge (1.3 GB) 0242810 CA90002-C015
Optical disk cartridge (2.3 GB) 0242910 CA90002-C030
Overwrite optical disk cartridge (230 MB) 0242310 CA90002-C041
Overwrite optical disk cartridge (540 MB) 0242510 CA90002-C042
Overwrite optical disk cartridge (640 MB) 0242710 CA90002-C043
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Page 42
Specifications
2.2.2 Optical disk cartridge
Figure 2.1 shows an optical disk cartridge. The figure below shows the cartridge
with its shutter open.
a. Shutter closed
2) Shutter
1) Cartridge case
3) Write protect tab
b. Shutter open
4) Disk
Figure 2.1 Optical disk cartridge
5) Hub
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2.2 Optical Disk Cartridge Specifications
The following explains the components of the optical disk drive shown in Figure
2.1:
1) Cartridge case
Covers the disk to protect it from damage when handled and facilitates disk
replacement. The cartridge case is labeled and has a write protect tab.
2) Shutter
Protects the disk against dust. When the cartridge is inserted into the optical
disk drive, the shutter (metallic door) is opened.
3) Write protect tab
The write protect tab selects whether write is enabled or disabled.
4) Disk
Holds information which can be read by an optical beam.
5) Hub
The hub is placed at the center of the disk and is linked to the spindle of the
drive. The hub is used for radial centering and axial positioning.
2.2.3 Disk specifications
(1) 128 MB disk
The ISO/IEC10090 defines 128 MB disk specification.
(2) 230 MB disk
The ISO/IEC13963 defines 230 MB disk specification.
(3) 540 MB/640 MB disk
The ISO/IEC15041 defines 540 MB/640 MB disk specification.
(4) 1.3 GB disk
The Cherry Book defines 1.3 GB disk specification.
(5) 2.3 GB disk
The Cherry Book 2 defines 2.3 GB disk specification.
Table 2.6 lists disk specifications.
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Page 44
Specifications
Table 2.6 Disk specifications
Item Specification
Reliability Read cycle >10
Erase/write/read cycle >10
Load/unload cycle 25,000
Archival life (according to acceleration test results) >10 years *1
Shelf life (according to acceleration test results) >10 years *2
Operating temperature 5 to 55°CEnvironmental
requirements
Operating relative humidity 3 to 85%RH *3
Storage temperature -20 to 55°C
Storage humidity 3 to 90% RH *3
*1 Archival life is the period in which recorded information can be read.
*2 Shelf life is the period in which information to be recorded can be written.
*3 Maximum wet bulb temperature = 29°C.
Note:
Non-recommended disks must be checked for compatibility.
8
6
2-10 C156-E224-01EN
Page 45
2.3 Defect Management
2.3.1 Defect management schematic diagram
Defective sectors on the disk shall be replaced by good sectors according to the
defect management scheme as follows: Defective sectors found during surface
certification are handled by a sector slipping algorithm. Defective sectors found
after initialization are handled by a linear replacement algorithm.
Figure 2.2 shows the algorithms for alternate processing.
2.3 Defect Management
(a) Sector slipping algorithm
(b) Linear r eplacement algorithm
Figure 2.2 Algorithms for alternate processing
The user area is divided into several groups during media initialization. Each
group contains data sectors and spare sectors. Spare sectors are used as
replacements for defective data sectors. Media initialization can include a
certification of the user area.
Figure 2.3 shows an example of alternate processing.
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Specifications
Figure 2.3 Example of alternate processing
2-12 C156-E224-01EN
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CHAPTER 3 Installation Requirements
3.1 Environmental Requirements
3.2 Mounting Requirements
3.3 Power supply Requirements
3.4 Cable Connections
3.5 Settings
3.6 Notes on Drive Handling
3.7 Mounting
3.8 Cable Connections
3.9 Operation Confirmation and Preparation for Use after Installation
3.10 Dismounting Drive
This chapter describes environmental, mounting, power supply, and connection
requirements.
3.1 Environmental Requirements
The environment in which these drives are installed must comply with the ambient
environmental requirements defined in Subsection 2.1.3.
3.1.1 Temperature measurement point
When a drive is operating, the ambient temperature measured 3 cm from the base
surface of the optical disk drive and the PCA unit surface must satisfy the
environmental requirements specified in Subsection 2.1.3. For the temperature of
each surface during operation, the contact temperature at each measurement point
shown in Figure 3.1 must satisfy the requirements specified in Subsection 3.1.2.
Low temperature burns: The surface temperatures of some ICs
on the printed circuit board unit in the optical disk drive exceed
55°C while operating. Be careful of low tenperature burns.
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Installation Requirements
a) Inside optical disk cartridge
Operating of inner
partition wall
Hole for inserting thermocouple
b) IC (controller, read amp)
IC (controller)
Tip of thermocouple
IC (read amp)
IC (power amp)
Figure 3.1 Surface temperature measurement points
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3.1 Environmental Requirements
3.1.2 Temperature requirements and measuring method
Table 3.1 shows the temperature requirement at each measurement point shown in
Figure 3.1.
Table 3.1 Temperature requirements at measurement points
Measurement point Maximum surface temperature
Cartridge inside 55°C *
IC (controller) surface 90 °C
IC (read amp.) surface 95 °C
IC (power amp.) surface 90 °C
* Following procedure is for temperature measurement of inside cartridge.
1) Make a hole for the thermocouple as shown in Figure 3.1.
3.1.3 Air flow
2) Disassemble the cartridge disk.
3) Cut off a part of the partition wall for the optical media as shown in Figure
3.1. (Cut off width: 5 to 10 mm)
4) Fix the tip of the thermocouple to the cut portion of partition wall with an
adhesive agent.
5) Pass the thermocouple through the hole at the cartridge case and assemble the
cartridge disk. When there is a gap between the hole and the thermocouple,
fill the gap with the adhesive agent.
Note:
The surface of the cartridge shown in Figure 3.1 has been cut away to make
the elements inside the case clearly visible. In reality the surface is not cut
away.
If the external environment temperature is higher than the specified value, the
device will automatically take an interval to respond to command, and then
take protective action to respond to the temperature increase.
It is recommended that this optical disk drive be installed in a fanless cabinet.
However, if the power supply is incorporated into the same cabinet, it is necessary
that it satisfy the "Temperature Conditions" in 3.1.2 and that the air flow rate
being drawn in by the device) at the cartridge loading slot be 0.3 m/s or lower.
Furthermore, if there is a system fan in a system where this drive is being installed,
the same conditions must be met.
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Installation Requirements
3.1.4 Temperature rise under several conditions
Table 3.2 Temperature at each measuring point (Reference)
[Ambient atmospheric temperature of the optical disk drive: 45°C] (°C)
Measurement point Ready Random seek Criteria
Inside cartridge 47°C 54°C 55°C
IC (controller) surface 51°C 68°C 90°C
IC (read amp.) surface 48°C 90°C 95°C
IC (power amp.) surface 47°C 78°C 90°C
Thermal sensor 47°C 55°C
Notes:
3.1.5 Air purity
Air purity in the device environment is expressed by the number of dust particles
per unit area and must be class 5 millions (equivalent to 0.15 mg/m
(Class 5 millions: 5 millions dust particles of 0.5 um dia. or larger per cubic foot)
−
1. The above data are data estimated as they were measured where the
temperature surrounding the equipment was kept at 45 °C, using that at
25 °C. They are not the same as the data obtained from measurements
using the exclusive box in which the equipment is normally used.
2. When using the box, the ambient temperature around the equipment will
differ depending on the air circulation conditions of the box, and the
temperature rise inside the cartridge will differ because of this, so please
exercise caution.
3
)orless.
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3.2 Mounting Requirements
3.2.1 External dimensions
Figures 3.2 to 3.3 show the dimensions of the drive and the positions of the
mounting holes.
3.2 Mounting Requirements
Unit: mm
Figure 3.2 Dimensions
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Installation Requirements
Unit: mm
Figure 3.3 Dimensions (without panel)
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3.2.2 Installation direction
Figure 3.4 shows the permissible installation directions for this drive. The
mounting angle tolerance must be within -5 to 10 from the horizontal. (-) shows
that the insertion faces below.
3.2 Mounting Requirements
• Horizontal
• Vertical
(Two orientations)
Disk insertion slot
Manual eject hole
Eject button / Busy LED
Figure 3.4 Installation directions
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Installation Requirements
3.2.3 Centers of gravity
Figure 3.5 shows the centers of gravity of the drive.
Figure 3.5 Centers of gravity
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3.2.4 Notes on mounting
(1) Mounting frame structure and clearance
a) For vibration resistance and heat dissipation, this optical disk drive uses an
embossed structure as shown in Figure 3.6, as well as a frame which has a
construction similar to other frames which perform the same function.
b) As shown in Figure 3.6, the inward projection of the mounting screw from the
outer surface of the drive frame must not exceed 3 mm.
c) The clearance between the external surface of the drive frame and the user's
frame structure must be at least 1.5 mm.
d) The clearance between the top and bottom surfaces and the user's frame
structure must be at least 1.5 mm.
e) When mounting the optical disk drive, the screw tightening torque should be
0.4 to 0.45Nm (4 to 4.6kgcm).
f) When the optical disk drive (with panel) is mounted in a locker, there should
be no deformation of the mounting fittings provided and the optical disk
drive's panel should not be deformed. If the drive is used with the panel
deformed, ejection of the cartridge will be faulty. Check if the door will close
from any position whatever when the optical disk drive is installed.
3.2 Mounting Requirements
φ
15
or less
φ
15
or less
If a bottom surface mounted.
Figure 3.6 Mounting frame structure
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Installation Requirements
(2) Panel function processing
When installed in a cabinet, do not change the panel formal. The processing is
installation status and the disk insertion door can be closed from any locations.
(3) Service clearance
Figure 3.7 shows locations which must be accessed for installation and
maintenance. Be sure to leave sufficient service clearance.
P side
•
Cable connection
R side
•
Mounting screw hole
Q side
•
Figure 3.7 Service clearance
(4) External magnetic fields
Mount the optical disk drive away from powerful magnetic materials (e.g., a
speaker) to avoid influence from magnetic fields.
(5) Leak magnetic field
The VCM drive magnetic circuit may leak the magnetic field (Maximum 25 mT at
distance of 4 mm from the drive).
Do not place a device sensitive to a magnetic field near the optical
disk drive.
Mounting screw hole
(6) External light source
Mount the optical disk drive away from strong light sources (e.g., camera flash).
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(7) System ground
The optical disk drive should be grounded to the signal ground (SG) of the power
supply of the system. This SG line should be supplied with the system.
The Frame Ground is shorted in the optical disk drive by a metal strip attached to
the vibration isolation rubber between the frame (FG) and the base (SG).
When mounting the optical disk drive in the Device Bay 120mm (5
inch) of the PC chassis, there are two ways of choosing frames the
metal frame and the plastic (nonconductive material) frame.
When using a plastic frame, there is not a short circuit between FG
of PC and FG of the optical disk drive. As a result, the static
electricity tolerance decreases compared with metal frame.
It is recommended to use a metal frame to enhance the static
electricity prevention.
3.3 Power Supply Requirements
3.3 Power Supply Requirements
(1) Allowable input voltage and current
The DC power supply input voltage measured at the power supply connector pin
of the optical disk drive (receiving end) must satisfy the requirements in Section
2.1.3.
(2) Current waveform (reference)
Figure 3.8 shows the +5 VDC waveform at seek.
Figure 3.8 Current waveform (+5 VDC)
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Installation Requirements
3.4 Cable Connections
3.4.1 Drive connectors
Figure 3.9 shows the connector and terminal locations.
Figure 3.9 Connector and terminal locations
1 + 12VDC or not connected
2 +12VDC RETURN (GND)
or not connected
3 + 5VDC RETURN (GND)
4 + 5VDC
Power
connector
(Component side)
SCSI
connector
Figure 3.10 Location of setting terminal
Front
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PC board
Figure 3.11 Shape of setting terminal
3.4 Cable Connections
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Installation Requirements
Pin No. Pin name Function
1 SCSI-ID (-) -
2 SCSI-ID1 SCSI ID1 setting *1
3 SCSI-ID (-) -
4 SCSI-ID2 SCSI ID2 setting *1
5 SCSI-ID (-) -
6 SCSI-ID4 SCSI ID4 setting *1
7 GND 0V
8 TERM SCSI Terminating resistor mode *2
9 GND 0V
10 Write Cache Mode Write cache mode *2
Table 3.3 Pin assignments
11 GND 0V
12 Spindle Automatic
Stop Mode
13 CTGIN Cartridge insertion signal *2 *3
14 EJSW Cartridge ejection signal *2 *4
15 LED (+)
16 LED (-)
*1 When pins 2, 4, and 6 are used, connect each pin to SCSI-ID (-).
*2 When pins 8, 10, 12, 13, and 14 are used, connect each pin to GND.
*3 This signal indicates that a cartridge is inserted in the device. This is a TTL
level signal.
H: A cartridge is present.
L: No cartridge is present.
*4 This signal is used to instruct cartridge ejection from outside.
*5 The LED uses a forward current of 20 mA or less.
Automatic spindle stop mode *2
Operating status LED signal *5
If voltage is applied to pin 14 from outside, the device may be
damaged. When using this pin, be sure to connect it to GND.
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3.4.2 Cable connector specifications
Table 3.4 Recommended components for connection
Category Name Model Manufacturer
3.4 Cable Connections
SCSI cable
Power supply
cable
Setting
terminal
Cable socket
(closed-end type)
Cable socket
(through-end type)
Signal cable
Housing for cable
socket
Contact 170121-4 AMP
Cable AWG18 -
Housing for cable
socket
Receptacle LPC-F104N Honda-Tsushin
Cable AWG28 -
FCN-707B050-AU/B Fujitsu Ltd.
FCN-707B050-AU/O Fujitsu Ltd.
UL20184LT25PX28AWG
455-248-50 SPECTRA-
1-480424-0 AMP
LPC-16F02 Honda-Tsushin
Hitachi Cable,
Ltd.
STRIP
A terminating resistor is mounted on the drive when the drive is
shipped. A terminating resistor must be disconnected when the
drive is not connected to an end of the SCSI cable.
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Installation Requirements
3.4.3 Connection Modes
Figure 4.3 shows examples of connections between the host system and the optical
disk drive. Up to eight devices including the host adapter, optical disk drive, and
other SCSI equipment can be connected to the SCSI bus in arbitrary combinations.
Install a terminating resistor on the SCSI devices connected to either end of the
SCSI cable.
See Section 3.4 for the cable connection requirements and power cable
connections.
a. Connecting one optical disk drive
b. Connecting more than one optical disk drive (single host)
Figure 3.12 SCSI bus connection modes
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c. Connecting more than one optical disk drive (multi-host)
3.4 Cable Connections
Figure 3.13 SCSI bus connection modes
Note: If more than one SCSI device is connected to the same SCSI bus, Fujitsu recommends using
an external terminator.
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Installation Requirements
3.5 Settings
3.5.1 Default jumper settings
Figure 3.14 shows the types of switches and their settings when the drive was
shipped.
3.5.2 Setting terminal
(1) SCSI ID
Table 3.5 shows the SCSI ID settings of the drive.
SCSI ID Pin 5-6 Pin 3-4 Pin 1-2
Figure 3.14 Setting terminal (CNH2)
Table 3.5 SCSI ID setting (CNH2)
0 Open Open Open
1 Open Open Short
2 Open Short Open
3 Open Short Short
4 Short Open Open
5 Short Open Short
6 *1 Short Short Open
7 Short Short Short
*1 Factory setting
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1) Each SCSI device connected to the same SCSI bus must have a
unique SCSI ID.
2) If contention occurs in the ARBITRATION phase, the priority
of the SCSI use authority depends on SCSI IDs as follows:
7>6>5>4>3>2>1>0
(2) SCSI terminating resistor mode
Enabling or disabling the SCSI terminating resistor, module on the PCA can be
set.
When the drive positions at other than the end of the SCSI bus, the SCSI
terminating resistor should be disabled. Table 3.6 shows the SCSI terminating
resistor mode setting.
Table 3.6 SCSI terminating resistor mode
SCSI terminating resistor mode (7-8)
3.5 Settings
SCSI terminating resistor module on the PCA is enabled. SHORT *1
SCSI terminating resistor module on the PCA is disabled. OPEN
*1 Factory setting
(3) Write cache mode
The write cache mode can be set. The write cache mode can also be enabled or
disabled by the MODE SELECT command.
Table 3.7 shows the settings of the write cache mode.
Table 3.7 Write cache mode setting
Write cache mode (9-10)
Write cache is disabled at executing the WRITE/WRITE
AND VERIFY command
Write cache is enabled at executing the WRITE/WRITE
AND VERIFY command.
*1 Factory setting
OPEN
SHORT *1
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Installation Requirements
(4) Spindle automatic stop mode
The optical disk drive automatically enters standby mode if it receives no
commands from the host for about 32 minutes (default value).
Table 3.8 Spindle motor automatic stop mode setting
Spindle motor automatic stop mode (11-12)
When the write cache feature is enabled, a write error is reported at
the completion status of next command. At a system so that the
initiator retries the command, a retry process may be failed.
The spindle motor automatically stops after a
specified period of time.
The spindle motor does not stop. OPEN *1
*1 Factory setting
SHORT
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3.6 Notes on Drive Handling
(1) General notes
Note the following points to maintain drive performance and reliability:
Device damage:
1) Shock or vibration applied to the drive that exceeds the values
defined in the standard damage the drive. Use care when
unpacking.
2) Do not leave the drive in dirty or contaminated environments.
3) Since static discharge may destroy the CMOS devices in the
drive, pay attention to the following points after unpacking:
- Use an antistatic mat and wrist strap when handling the
drive.
- Hold the mounting frame when handling the drive. Do
not touch the Printed circuit board except when setting the
switches.
4) When handling the drive, hold both sides of the mounting
frame. When touching other than both sides of the mounting
frame, avoid putting force.
5) Do not forcibly push up the end of the header pin of the printed
circuit board unit when handling or setting the drive.
3.6 Notes on Drive Handling
(2) Unpacking
• Make sure that the UP label on the package is pointing upward and start
unpacking on a level surface. Handle the drive on a soft surface such as a
rubber mat, not on a hard surface such as a desk.
• Use care to avoid exerting excessive pressure on the unit when removing the
cushions.
• Use care to avoid exerting excessive pressure on the printed circuit board
surface and interface connectors when removing the drive from the antistatic
bag.
• If the temperature difference between installation locations is 10 degrees or
more, leave the drive in the new location for at least two hours before
unpackaging it.
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Installation Requirements
(3) Installation
• Do not connect or disconnect the connectors or change the terminal settings
when the power is on.
• Do not move the drive with the power on.
• Eject the optical disk cartridge, lock the carriage securing the head, turn off
the power, then move the drive.
Device damage: Be sure to turn on the power supply before
inserting your cartridge for the first time. It releases the device from
transport protection and enables you to insert the cartridge.
The device may be damaged if you insert the cartridge without
releasing the protection. From the next time, you don't need to turn
on the power supply beforehand.
Before moving the drive, remove the optical disk cartridge. If the
drive is moved with the optical disk cartridge loaded in it, the head
may move back and forth in the drive to damage the head or disk
and reading the data may fail.
(4) Packing
• Before packing, remove the optical cartridge.
• Store the drive in an antistatic plastic bag with desiccant (silica gel).
• Use the same cushions and packaging supplied with the drive. If they are not
• Apply "UP" and "Handle With Care" labels to the outside of the package.
Figure 3.15 shows the single-unit packing style and the multiple-unit packing
style. (The form and material of the cushion may be changed.)
available, ensure that adequate shock absorbent material is used. In this case,
some method of protecting the printed circuit board surface and interface
connectors must be used.
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3.6 Notes on Drive Handling
(
)
Desiccant
Conductive bag
Shipping Label (2)
Master carton
12/24 units
MCJ3230SS
Eject pin (use a sealing tape)
Support (Front, Rear)
Support (Middle)
Box
Eject pin (x 20)
Desiccant
Conductive bag
MCJ3230SS
Single-unit packing
(5) Transportation
• Transport the optical disk drive packed in principle, with the UP sign upward.
• After unpacking, minimize the transportation distance and use cushions to
avoid shock and vibration. Transport the drive in one of the orientations
described in Subsection 3.2.2 after unpacking. (The horizontal direction is
recommended.)
(6) Storage
• Use moistureproof packaging when storing the drive.
• The storage environment must satisfy the requirements specified in
Subsection 2.1.3 when the drive is not operating.
• To prevent condensation, avoid sharp changes in temperature.
Multiple-unit packing
Figure 3.15 Packing style
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Installation Requirements
3.7 Mounting
3.7.1 Checks before mounting the drive
Before mounting the optical disk drive in the system cabinet, check whether the
jumper settings are set correctly.
3.7.2 Mounting procedure
How the drive is mounted depends on the system cabinet structure. Determine the
mounting procedure in consideration of the requirements of each system. This
section contains the general mounting procedure and check items.
See Section 3.2 for details on mounting drive.
1) Tighten four mounting screws to secure the drive in the system cabinet.
− The drive has ten mounting holes (both sides: 3 × 2, bottom: 4). Secure
the drive using the four mounting holes on both sides or the bottom.
− Use mounting screws whose lengths are 3 mm or less from the external
wall of the mounting frame of the drive when they are tightened. (See
Figure 3.6)
− When mounting with screws, the screw tightening torque should be 0.4 to
0.45Nm (4 to 4.6kgfcm).
− Be careful not to damage the parts on the PCA when mounting the drive.
2) After securing the drive, make sure that the drive does not touch the chassis of
the system cabinet. There must be at least 1.5 mm clearance between the
drive and chassis. (See Figure 3.6)
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3.8 Cable Connections
Use the following cables to connect the drive to the system. See Subsection 3.4
for details on the connector positions and cable requirements.
•
Power supply cable
•
SCSI interface cable
•
DC ground cable (if required)
The general procedure for cable connection and notes on connecting cables are
given below. Pay attention to the insertion direction of each cable connector.
• Make sure that the system power is off.
• Do not connect or disconnect any cable when the power is on.
3.8 Cable Connections
1) Connect the DC ground cable (only if required to decrease ground noise).
2) Connect the power cables.
3) Connect the SCSI interface cable.
4) After each cable connector is connected, secure the cable so that the cable
does not touch the drive or the parts on the PCA or obstruct the flow of
cooling air in the system cabinet.
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Installation Requirements
3.9 Operation Confirmation and Preparation for Use after Installation
3.9.1 Confirming initial operations
This section provides the operation check procedures after the power is turned on.
(1) Initial operation when the power is turned on
•
When the power is turned on, the drive starts initial self-diagnosis. The LED
on the front panel is on for 1 second during initial self-diagnosis.
•
If an error is detected during initial self-diagnosis, the LED on the front panel
blinks.
•
In case of not inserted the cartridge, when the power is turned on, the eject
motor automatically turns once.
(2) Checks if errors occur at initial self-diagnosis
•
Make sure that the cables are connected correctly.
•
Make sure that the supply voltage is correct. (Measure the voltage at the
power supply connector of the optical drive.)
•
Make sure that the settings of all terminals are correct.
•
If the LED on the front panel blinks continuously, an error was detected
during initial self-diagnosis. In this case, issue the REQUEST SENSE
command from the initiator (host system) to obtain sense data for error
analysis.
The BUSY LED is on while the optical disk drive is executing seek,
write, or read operations. The BUSY LED is on momentarily, so it
seemsasifitblinkedorisoff.
The eject motor turns once when the power is turned on so that in
case the spindle motor position deviates due to shocks received by
the drive during transport the position is corrected to allow the
cartridge to be inserted normally. If the cartridge fails to be inserted,
remove the cartridge and turn on the drive power to turn the eject
motor once and reinsert the cartridge.
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3.9.2 Connection check
When initial operation check terminates normally after the power is turned on,
check whether the drive is correctly connected by issuing command from the host
system. Checking procedure depends on the host system configuration.
If processing terminates abnormally:
1) If sense data has been obtained by the REQUEST SENSE command, analyze
the sense data. If the error is recoverable, retry the processing.
2) Check the following items for SCSI interface cable connection:
− All connectors, including other devices, are connected correctly.
− Make sure the correct cable is being used (whether it corresponds with
the cable selection mode).
3) Make sure again that the jumper settings are correct.
3.10 Dismounting Drive
3.10 Dismounting Drive
How to demount an optical disk drive (for setting terminal checking, setting
change, or device replacement) depends on the system cabinet configuration.
Determine the demounting procedure in consideration of the requirements of each
system. This section describes the general demounting procedure and notes on
demounting drives.
Device damage: Before demounting the optical disk drive, turn
off the system power. Do not remove screws securing the cables
and drive when the power is on.
1) Remove the power cable.
2) Remove the SCSI interface cable.
3) Remove the DC ground cable.
4) Remove the four screws securing the drive, then remove the drive from the
system cabinet.
5) When storing or transporting the drive, put the drive into an antistatic bag.
(See Section 3.6.)
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CHAPTER 4 Host Interface
4.1 Interface Connector
4.2 Various Processes
4.3 SCSI Comands
4.4 SCSI Messages
4.5 Timing Rule
This chapter describes host interface specification.
4.1 Interface Connector
The nonshielded SCSI connector installed on the ODD is a 50-conductor
connector consisting of two rows of 25 male pins with adjacent pins 2.54 mm (0.1
in.) apart. See Figure 4.1.
The nonshielded cable connector shall be a 50-conductor connector consisting of
two rows of 25 female contacts with adjacent contacts 2.54 mm (0.1 in.) apart. The
use of keyed connectors is recommended to prevent accidental misinsertion. See
Figure 4.2.
Figure 4.3 shows the nonshielded connector pin assignments for SCSI.
Symbol mm Remark
D1 2.54 -
D2 2.54 -
D3 5.08 -
D4 6.25 -
Note: The tolerance is ±0.127 mm unless otherwise specified.
Figure 4.1 SCSI interface connector (ODD side)
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Host Interface
Symbol mm Remarks
C1 2.540 -
C2 60.960 -
C3 2.540 -
C4 3.302 -
C5 32.385 -
C6 68.072 -
C7 6.096 -
C8 7.620 Maximum value
Notes:
1. The tolerance is ± 0.127 mm unless otherwise specified.
2. A connector cover and strain relief are not shown in this figure.
Figure 4.2 SCSI interface connector (cable side)
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4.1 Interface Connector
Table 4.1 SCSI interface connector pin assignments (single-ended type)
01 G –DB0 02
03 G –DB1 04
05 G –DB2 06
07 G –DB3 08
09 G –DB4 10
11 G –DB5 12
13 G –DB6 14
15 G –DB7 16
17 G –DBP 18
19 G G 20
21 G G 22
23 G G 24
25 Open TERMPWR* 26
27 G G 28
29 G G 30
31 G –ATN 32
33 G G 34
35 G –BSY 36
37 G –ACK 38
39 G –RST 40
41 G –MSG 42
43 G –SEL 44
45 G –C/D 46
47 G –REQ 48
49 G –I/O 50
* Terminating resistor power supply (jumper selectable: input only, both input and
output, or open)
Note that shielded end processing is not performed with the
connector on the main unit's optical disk unit for cables that use pin
No.9 as the shielded ground.
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Host Interface
4.2 Various Processes
4.2.1 Reset response
Three types of reset responses are available.
• Power-On Reset
- The ODD performs initialization processes such as initial diagnosis and
default setting. It also starts rotation of the media, if any is mounted.
• SCSI Reset
- The ODD is reset when the RESET- signal is asserted. The ODD
performs initialization of the interface controller, including such
operations as writing the default values to the registers.
- UNIT ATTENTION is generated.
• Bus Device Reset
- The ODD is reset when a bus device reset message is received. The
ODD performs initialization of the interface controller, including such
operations as writing the default values to the registers.
- UNIT ATTENTION is generated.
4.2.2 Defective sector management
The following standards for each type of media are used to manage sector
mapping:
- ISO/IEC 10090 for 128-MB media
- ISO/IEC 13963 for 230-MB media
- ISO/IEC 15041 for 540/640-MB media
- Cherry Book for 1.3-GB media
- Cherry Book 2 for 2.3-GB media
In principle, the initiator need not manage defective sectors.
4.2.3 Automatic alternate sector assignment function
If a verify error is detected in the ID or data section when the WRITE (6/10),
WRITE AND VERIFY, or ERASE command is executed, the ODD automatically
assigns an alternate sector. Alternate sector information is entered in the
secondary defect list (SDL) on the media.
No error is reported if automatic alternate sector assignment ends successfully.
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4.2.4 Cache function
The ODD supports read cache and MO write cache.
The read cache consists of the read-ahead cache and the LRU cache that reads
write data remaining in the data buffer.
The read-ahead cache enables data transfer at almost the same speed as the
effective transfer speed during continuous read operation without causing delays
resulting from rotation latency. If write and read operations are executed
frequently on a same sector, the LRU cache enables the transfer of data without
mechanical operation.
The MO write cache writes data in batch mode during continuous write operation,
thus reducing the number of positioning operations, which is determined by the
buffer size, and improving write throughput.
4.2.4.1 Data buffer
The ODD uses part of the buffer area as work memory for control firmware and
the remaining area for a data buffer. The data buffer consists of multiple segments
and contains multiple segments of write data.
4.2 Various Processes
4.2.4.2 Read cache
If the read cache function is enabled, the ODD enables the read-ahead cache and
LRU cache. When a READ command is received while the read cache is enabled,
the ODD reads the specified sector and continues pre-reading the following
sectors. The ODD thus transfers data in the sectors specified by the command
while pre-reading the sectors that follow.
When data in the sector specified by the host is pre-read data, the ODD transfers
the data directly from the buffer without any mechanical operation.
The ODD stops pre-reading under any of the following conditions:
• Read error
• Data buffer full (The ODD may restart pre-reading when the buffer is no
• Media ejection instruction given with the eject switch
• Power-off
• The system judges that performance will be improved by stopping the pre-
longer full.)
reading and giving priority to other processing.
If the read cache is enabled, the buffer contains data transferred from the host with
a write command. If a read command is issued for an applicable sector address,
the ODD directly transfers data to the host from the data buffer rather than reading
it from the media. If the cache is hit with a read command, the ODD places and
keeps the data in the hit segment in the highest priority.
The following types of data are not subject to the read cache function:
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Host Interface
• Data read before power-off
• Data stored before media is mounted
All buffer data is discarded when:
• The power is turned off.
• The media is ejected.
• A FORMAT UNIT command is received.
• The ODD is in standby mode.
Buffer data may be discarded when:
• A MODE SELECT command that changes the read conditions is received.
4.2.4.3 MO write cache
If the write cache is enabled, the ODD responds to the host with command
completion when data transfer for a WRITE or WRITE AND VERIFY command
(hereafter collectively called a write command) is completed.
The ODD writes data stored in the buffer to the media and proceeds to the next
processing when:
• The eject switch is pressed.
• A SYNCHRONIZE CACHE command is received.
When data is contained in the buffer, and if any of the following conditions
occurs, the data in the buffer may not be written to the media correctly:
• The power is turned off.
• The media is forcibly ejected (mechanical ejection).
4.2.5 Power management function
The ODD provides a power management function that minimizes power
consumption. A timer is used to implement the function.
4.2.6 Power mode
The ODD supports the power modes listed below. If no media is mounted, the
ODD uses a power mode equivalent to standby mode.
• Active mode
• Pre-idle mode
• Idle mode
• Standby mode
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4.2.6.1 Active mode
In active mode, all circuits are enabled and the time for command processing is
minimized.
4.2.6.2 Pre-idle mode
In pre-idle mode, the read and write circuits are in stopped state. The ODD can
receive a command from the host, but since some circuits are stopped, the
command requires an additional 20 ms to access the media.
The ODD automatically enters pre-idle mode if no command is issued within a
specified time (0.5 s) in active mode. The ODD automatically enters active mode
when it receives a media access command.
4.2.6.3 Idle mode
In idle mode, the servo, and read and write circuits are in stopped state. The ODD
can receive a command from the host, but since some circuits are stopped, the
command requires an additional 1 s (default) to access the media.
4.2 Various Processes
If no command is issued within a specified time (180 s) in active mode, the ODD
automatically enters pre-idle mode, then enters idle mode. The ODD
automatically enters active mode when it receives a media access command.
4.2.6.4 Standby mode
In standby mode, the spindle motor stays stopped. The ODD can receive a
command from the host, but since the spindle motor is stopped, the command
requires 5 s (default) for recovery before accessing the media.
If no command is issued within a specified time while the ODD is in active mode
with the standby timer enabled, the ODD automatically enters standby mode. The
ODD automatically enters active mode when it receives an access command.
4.2.6.5 Standby timer
The standby timer counts the elapsed time during which the host issues no
commands.
The standby timer value is programmable with the Power Condition Page of the
MODE SELECT command. The default standby timer value is 32 minutes
(including the transition time to idle mode).
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4.2.6.6 Power mode transition
The power mode transition is shown in Figure 4.3.
Media insertion
Active
Reset
Idle
Standby
Media ejection
(1) The ODD enters idle mode because it receives no command within a
specified time.
(2) The ODD enters standby mode based on the standby timer.
(3) The ODD enters active mode because it receives a media access command.
Figure 4.3 Power mode
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4.2.7 LED indications
The ODD notifies the operator of a serious error by turning on or blinking an
LED. Table 4.2 lists the LED indications and the corresponding operations.
Table 4.2 LED indications
LED indication Operation
Off Waiting for a command
4.2 Various Processes
On
Blinking
(on for 0.1 s and off for 0.7 s repeatedly)
Blinking
(on for 0.1 s and off for 0.1 s repeatedly)
Blinking
(on for 0.4 s and off for 0.4 s repeatedly)
Blinking
(on for 0.1 s and off for 0.3 s repeatedly)
Command processing
Seek operation
Read/write processing (including cache
processing)
Formatting
Power-on diagnosis
Spinning up (including returning from standby
mode)
Spinning down (including shifting to standby
mode)
Starting firmware dedicated to downloading *1
A power-on diagnosis error occurred.
A thermal alarm occurred.
An error occurred during writing to the write
cache *2.
*1 ODD control firmware is stored in flash ROM and can be downloaded from
the host with the WRITE BUFFER command. However, if a problem such
as a power failure occurs during downloading, downloading is interrupted
and the microcodes in the control firmware may be damaged. In such a
case, to download the microcode data again, the ODD starts emergency
download firmware that supports only the WRITE BUFFER command and
other basic commands.
*2 The LED that is blinking because of a write cache write error stops blinking
when the media is ejected.
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4.3 SCSI Commands
Table 4.3 lists the SCSI commands supported by MCJ3230SS.
Table 4.3 SCSI commands
No.
12C 10ERASE
2 04 6 FORMAT UNIT
3 12 6 INQUIRY
4 15 6 MODE SELECT
5 1A 6 MODE SENSE
6
708 6READ(6)
8 28 10 READ (10)
9 25 10 READ CAPACITY
10 37 10 READ DEFECT DATA
11 3E 10 READ LONG
12 1C 6 RECEIVE DIAGNOSTIC RESULTS
13 17 6 RELEASE
14 03 6 REQUEST SENSE
15 16 6 RESERVE
16 0B 6 SEEK (6)
17 2B 10 SEEK (10)
18 1D 6 SEND DIAGNOSTIC
19 1B 6 START/STOP UNIT
20 35 10 SYNCHRONIZE CACHE
21 00 6 TEST UNIT READY
22 2F 10 VERIFY
23 0A 6 WRITE (6)
24 2A 10 WRITE (10)
25 2E 10 WRITE AND VERIFY
26 3B 10 WRITE BUFFER
27 3F 10 WRITE LONG
CDB
(HEX)
1E 6 PREVENT/ALLOW MEDIUM
CDB
length
Command name
REMOVAL
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4.3.1 TEST UNIT READY command
The TEST UNIT READY command checks whether a logical unit is ready to
operate.
Table 4.4 TEST UNIT READY command
4.3 SCSI Commands
Bit
Byte
0 Operation Code (00h)
1LUN Reserved
2-5 Reserved
4.3.2 INQUIRY
Bit
Byte
0 Operation Code (12h)
1LUN Reserved
2-3 Reserved
4 Allocation Length
5Reserved
76543210
If the ODD power is on and the ODD is ready to operate, the command reports
GOOD status. If the ODD is not ready or an error condition remains in the device
even though the ODD is ready, the command reports CHECK CONDITION
status. When this command is executed, the ODD resets the sense data.
Table 4.5 INQUIRY command
76543210
The ODD returns CHECK CONDITION status only when it fails to return the
INQUIRY data requested by the INQUIRY command.
When the ODD receives an INQUIRY command from INIT while it has a UNIT
ATTENTION condition (before the ODD reports CHECK CONDITION status),
the ODD executes the INQUIRY command but does not clear the UNIT
ATTENTION condition.
The transfer byte length field at CDB byte 4 indicates the number of bytes of
INQUIRY data that INIT can receive with this command. The ODD transfers as
many bytes of data as specified by the transfer byte length or the INQUIRY data
held by the ODD, whichever is smaller. If 0 is specified in the transfer byte length
field, the command ends and no data is transferred.
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Host Interface
Table 4.6 INQUIRY command response data
Bit
Byte
0
76543210
Device classification code
(000b)
Device Type
"7Fh" when a value other than 0 is specified for LUN
1
RMB
"1h"
Reserved
2 ISO Version "0h" ECMA Version"0h" ANSI Version"2h"
3 Reserved Response data format (2h)
4 Additional length (2Bh)
5-6 Reserved
'
0'
Wb us16
0'
'
S yn c ' 1' Linked '0' '0 '
CmdQue
'0'
7RelAdr'0'
WBus3
2
Vendor Information
8-15
"FUJITSU" (in ASCII)
Left justified. The rightmost data area not used is padded with spaces. (20h)
Product Information
16-31
"MCJ3230SS" (in ASCII)
Left justified. The rightmost data area not used is padded with spaces. (20h)
32-35
36
37
Firmware Revision Level
"0000"-"999z" (in ASCII)
Firmware Local Revision
00h-FFh (in HEX)
Boot Firmware Revision Level
00h-FFh (in HEX)
38-39 Signature "MO" (in ASCII)
40-47 Factory Information
SftRe
'0'
The Factory Information is the data that is provided for use at the factory. The
data value may vary depending on the device. Therefore, INIT should not have an
expected value. Normally, return 0.
4-12 C156-E224-01EN
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4.3.3 READ CAPACITY command
Table 4.7 READ CAPACITY command
4.3 SCSI Commands
Bit
Byte
0 Operation Code (25h)
1LUN Reserved
2-7 Reserved
8 Reserved PMI
9Reserved
Bit
Byte
0-3 Last Logical Block Address
4-7 Block Length in Bytes
76543210
The READ CAPACITY command transfers data related to the media capacity to
INIT. Any value specified for the Partial Medium Indicator (PMI) bit is ignored.
The transfer data is listed in Table 4.8.
Table 4.8 READ CAPACITY data
76543210
Last Logical Block Address indicates the address of the last block that can be
accessed.
Block Length in Bytes indicates the number of bytes per block.
4.3.4 MODE SELECT command
Table 4.9 MODE SELECT command
Bit
Byte
0 Operation Code (15h)
1 LUN PF Reserved SP
2-3 Reserved
4 Parameter List Length
5Reserved
76543210
The MODE SELECT command sets various device operating modes.
The Page Format (PF) bit must be 1. If the PF bit is 0, the command responds
with Check Condition. If the Save Pages (SP) bit is 1, the ODD saves all
parameter values transferred to flash ROM. Parameter List Length specifies the
number of bytes in the mode parameter to be transferred. If the value is 0, the
command ends normally without transferring any data. If the transferred mode
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Host Interface
parameters are incomplete, the command responds with Check Condition without
any processing.
Table 4.10 lists the pages supported.
Table 4.10 Mode page codes
Definition Page Code
Read-Write Error Recovery Page 01h
Flexible Disk Page 05h
Caching Page 08h
Power Condition Page 1Ah
Verify Control Page 3Eh
Table 4.11 is a mode parameter list.
Table 4.11 Mode parameter list
Bit
Byte
76543210
0-4 Mode Parameter Header
0-7 Block Descriptor
0-n Mode Page (s)
The mode parameter list consists of Mode Parameter Header, Block Descriptor,
and Mode Page.
Table 4.12 shows the format of the Mode Parameter Header.
Table 4.12 Mode parameter header
Bit
Byte
76543210
0 Mode Data Length
1 Medium Type Code
2 WP Reserved
3 Block descriptor Length
Values specified for Mode Data Length, Medium Type Code, and WP are ignored.
Block Descriptor Length must be 0 or 8.
Table 4.13 shows the format of the Block Descriptor.
The value specified for Block Descriptor is ignored.
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Table 4.13 Block descriptor
4.3 SCSI Commands
Bit
Byte
76543210
0 Density Code (00h)
1-3 Number of Blocks
4Reserved
5-7 Block Length
Table 4.14 shows the format of the Mode Page field.
Table 4.14 Mode page
Bit
Byte
76543210
0 PS 0 Page Code
1 Page Length (n-1)
2-n Mode Parameters
(1) Read/write error recovery page
Table 4.15 Read/write error recovery page
Bit
Byte
76543210
0 PS (1) 0 Page Code (01h)
1 Page Length (0Ah)
2AWRE
Reserved Reserved
RC
Reserved
PER
Reserved
DCR
3 Read Retry Count
4-7 Reserved
8 Write Retry Count
9-11 00h
If the Automatic Write Reallocation Enabled (AWRE) bit is 0, no automatic
alternate block assignment is made by the WRITE (6), WRITE (10), or WRITE
AND VERIFY command. If the AWRE bit is 1, an automatic alternate block
assignment function is enabled.
If the Read Continuous (RC) bit is 0, an error is reported if an uncorrectable data
error is detected in the READ (6) or READ (10) command. If the RC bit is 1, the
command transfers the erroneous data and ends normally even if an uncorrectable
data error is detected.
If the Post Error (PER) bit is 0, the command reports GOOD status if an error is
corrected with the error recovery process. If the PER bit is 1, the command
reports CHECK CONDITION status if an error is corrected with the error recover
process. The Sense Key is then set to RECOVERED ERROR.
RECOVERED ERROR is reported when:
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• Seven or eight error bytes occurring per interleaving are corrected by the ECC
feature during a read operation.
• A defective sector is detected and replaced with an alternate sector during a
write operation.
• An error occurs in one of four sets of media data during media management
information (DMA) write operation caused by the FORMAT UNIT command
(MEDIUM ERROR is set if an error occurs in two, three, or four sets of four
sets).
If the Disable Correction (DCR) bit is 0, the command corrects any correctable
errors detected in a read command. If the DCR bit is 1, the command does not
correct any correctable errors that are detected.
A value of 3 or fewer cannot be specified for Read Retry Count. If 3 or fewer is
specified, the command processing assumes that 4 is specified and reports
Recovered Error.
The value of Write Retry Count must be 3. If a value other than 3 is specified, the
command processing assumes that 3 is specified and reports Recovered Error.
To ensure media compatibility, the read-write error recovery page must contain
the default values, except when the settings are used for a diagnosis.
The values in the Read-write error recovery page can be saved.
Table 4.16 Variable values in the read-write error recovery page
Bit
Byte
76543210
2 10010101
3 FFh
4-7 00h
8 FFh
9-11 00h
Table 4.17 Default values in the read-write error recovery page
Bit
Byte
76543210
2 10000000
33Fh
4-7 00h
8 03h
9-11 00h
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(2) Flexible disk page
4.3 SCSI Commands
Table 4.18 Flexible disk page
Bit
Byte
0 0 0 Page Code (05h)
1 Page Length (1Eh)
2-3 Transfer Rate
4 Number of Heads
5 Sectors per Track
6-7 Data Bytes per Sector
8-9 Number of Cylinders
10-19 Reserved
20 Motor off Delay
21-27 Reserved
28-29 Medium Rotation Rate
30-31 Reserved
76543210
The Flexible disk page is only supported for compatibility of device drivers.
Device drivers should not use this page to guarantee the logical compatibility of
media.
The unit of Transfer Rate is kbps.
Number of Heads, Sectors per Track, and Number of Cylinders define logical
values, and do not indicate physical values. If a device driver or application uses
these values, logical compatibility of media is not guaranteed.
Data Bytes per Sector defines block length (200h or 800h).
Motor off Delay defines the duration after which the motor is instructed to stop.
FFh indicates that the motor is not instructed to stop.
Medium Rotation Rate defines revolutions per minute (rpm).
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Table 4.19 Variable values in the flexible disk page
Bit
Byte
2-3 0000h
4 00h
5 00h
6-7 00h
8-9 0000h
10-19 0000h
20 00h
21-27 00h
28-29 0000h
30-31 00h
Bit
Byte
2-3 3E80h
4 40h
5 20h
6-7 640 MB, 1.3 GB, or 2.3 GB media: 800h
8-9 Number of media LBAs: 40h x 20h
10-19 00h
20 FFh
21-27 00h
28-29 1194h
30-31 00h
76543210
Table 4.20 Default values in the flexible disk page
76543210
Other media or Not Ready: 200h
(If Not Ready, the value of the maximum capacity media
among supported 512-sector media)
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(3) Caching page
4.3 SCSI Commands
Table 4.21 Caching page
Bit
Byte
76543210
0 PS (1) 0 Page Code (08h)
1 Page Length (12h)
2ReservedWCE
Reserved
RCD
3-19 Reserved
If the Write Cache Enable (WCE) bit is 0, the write cache function for the WRITE
(6), WRITE (10), and WRITE AND VERIFY commands is disabled. If the bit is
1, the write cache function is enabled.
If the Read Cache Disable (RCD) bit is 0, the read-ahead cache function for the
READ (6) and READ (10) commands is enabled. If the bit is 1, the read-ahead
cache function is disabled.
The values in the Caching page can be saved.
Table 4.22 Variable values in the Caching Page
Bit
Byte
76543210
2 00000101
3-19 00h
Table 4.23 Default values in the Caching Page
Bit
Byte
76543210
2 00000100
3-19 00h
(4) Power condition page
Table 4.24 Power condition page
Bit
Byte
76543210
0 PS (1) 0 Page Code (1Ah)
1 Page Length (0Ah)
2Reserved
3 Reserved Idle Standby
4-7 Idle Condition Timer (in units of 100 ms)
8-11 Standby Condition Timer (in units of 100 ms)
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Any values specified for the Idle bit or Idle Condition Timer bits are ignored. The
ODD always uses the default timer values.
If the Standby bit is 1, Standby Condition Timer defines the time elapsed before
the ODD enters standby mode after it enters idle mode.
Specify the values for Idle Condition Timer and Standby Condition Timer in units
of 100 ms.
If the value specified for Standby Condition Timer is not a multiple of 600 (258h),
the ODD automatically rounds the value down to the next multiple of 60 s.
The values in the Power condition page can be saved.
Table 4.25 Variable values in the Power condition page
Bit
Byte
76543210
20
3001
4-7 0
8-11 ffffffffh
Table 4.26 Default values in the Power condition page
Bit
Byte
76543210
20
3011
4-7 00000708h
8-11 000043F8h
(5) Verify control page
Table 4.27 Verify control page
Bit
Byte
76543210
0 PS (1) 0 Page Code (3Eh)
1 Page Length (06h)
2 AV SM Reserved VM
3 Reserved DevType
4-7 Reserved
The Verify control page is unique to each vendor.
If the Audio Visual Mode (AV) bit is 0, normal cache mode is used. If the bit is 1,
AV data support mode is used.
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4.3 SCSI Commands
If the Streaming Mode (SM) bit is 0, a test write operation may interrupt a read or
write operation. If the bit is 1, the test write operation is suppressed during
continuous read or write operation. Fujitsu recommends setting the SM bit to 0.
Verify Mode (VM) specifies a verify operation for the WRITE command.
Table 4.28 Verify mode
VM Description
0 Always enable verify operation.
1 Always disable verify operation.
2 Conditionally enable verify operation (verify skip mode).
3 Reserved
DevType specifies the device type that is returned in response to the Inquiry
command. To validate the specified value, save it, then turn the power off and on
again.
The values in the Verify control page can be saved.
Table 4.29 Variable values in the Verify control page
Bit
Byte
2 1 1 0 11b
3 0 1Fh
4-7 0
Bit
Byte
2 1 0 0 00b
30 0h
4-7 0
76543210
Table 4.30 Default values in the Verify control page
76543210
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4.3.5 MODE SENSE command
Table 4.31 MODE SENSE command
Bit
Byte
0 Operation Code (1Ah)
1 Reserved DBD Reserved
2 PC Page Code
3 Reserved
4 Allocation Length
5 Reserved
76543210
The MODE SENSE command transfers a mode parameter list to INIT.
If Disable Block Descriptor (DBD) is 1, the command does not return a block
descriptor. If DBD is 0, the command returns a block descriptor.
Allocation Length specifies the number of bytes of the mode parameter to be
transferred. If Allocation Length is 0, the command ends normally without
transferring any data.
Page Control (PC) specifies the type of page to be sent.
Table 4.32 Page control field
Bit 7 Bit 6 Parameter type
0 0 Current value
0 1 Variable value
1 0 Default value
1 1 Saved value
Page Code specifies a mode page to be transferred. If Page Code is 3Fh, all mode
pages are transferred. Table 4.10, "Mode page codes" lists the mode pages that are
supported.
Mode pages are transferred in ascending order of page code.
If 0 is specified for both Page Code and Page Control, the command transfers
Mode Parameter Header and Block Descriptor (only if the DBD bit is 0).
Table 4.33 is a list of mode parameters.
4-22 C156-E224-01EN
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Table 4.33 Mode parameters
Bit
Byt
76543210
e
0-4 Mode Parameter Header
0-7 Block Descriptor
0-n Mode Page (s)
The mode parameter list consists of Mode Parameter Header, Block Descriptor,
and Mode Page.
Table 4.34 shows the format of the Mode Parameter Header field.
Table 4.34 Mode Parameter Header
4.3 SCSI Commands
Bit
Byte
76543210
0 Mode Data Length
1 Medium Type Code
2WP Reserved
3 Block Descriptor Length
Medium Type Code returns the following values:
• 03h for normal MO media
• 07h for overwrite MO media
• 03h for other media or Not Ready state
The Write Protect (WP) bit indicates the state of the write protect key on the
cartridge. If the WP bit is 1, the cartridge is write-protected.
Mode Data Length indicates the length (bytes) of mode data to be transferred.
Block Descriptor Length indicates the length (bytes) of the block descriptor to be
transferred.
Table 4.35 shows the format of the Block Descriptor field.
Table 4.35 Block Descriptor
Bit
Byte
76543210
0 Density Code (00h)
1-3 Number of Blocks
4Reserved
5-7 Block Length
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Each field value of Block Descriptor is valid only when accessible media is
inserted. If accessible media is not inserted, 0 is returned.
Table 4.36 shows the format of the Mode Page field.
Table 4.36 Mode Page
Bit
Byte
76543210
0 PS 0 Page Code
1 Page Length (n-1)
2-n Mode Parameters
If PS is 1, page data can be saved to flash ROM.
4.3.6 START/STOP UNIT command
Table 4.37 START/STOP UNIT command
Bit
Byte
0 Operation Code (1Bh)
1LUN Reserved
2-3 Reserved
4ReservedLoEjStart
5 Reserved
76543210
The START/STOP UNIT command ejects media or starts or stops rotating the
disk.
IMMED
If the Immediate (IMMED) bit is 1, command completion is reported before
processing is completed.
Table 4.38 lists the types of processing performed depending on the values
specified for LoEj and Start.
Table 4.38 Start, stop, and eject processing
LoEjStart Processing
0 0 Stops disk rotation.
0 1 Starts disk rotation and checks the type of media format.
1 0 Ejects media, if possible.
1 1 Ends with an error (ILLEGAL REQUEST).
4-24 C156-E224-01EN
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4.3.7 RESERVE command
Table 4.39 RESERVE command
4.3 SCSI Commands
Bit
Byte
0 Operation Code (16h)
1LUN Reserved
2-5 Reserved
76543210
As with the RELEASE command (explained next), the RESERVE command
controls exclusive access to the logical unit (ODD) in a multi-initiator
environment. The ODD is reserved for another SCSI device by the INIT that
issues this command.
Any values specified for CDB bytes 1 to 5 are ignored. However, INIT should
specify 00h for these bytes.
The RESERVE command reserves the entire ODD (logical unit) for a specific
SCSI device. The ODD reserved by this command remains reserved until one of
the following conditions is met:
• The RELEASE command is issued by the INIT that issued the RESERVE
command.
• A BUS DEVICE RESET message is issued by an INIT.
• A RESET condition occurs.
• The ODD power is turned off and on again.
While an ODD is reserved for a SCSI device, an INIT having no "reservation
authority" for the ODD might issue this command. If so, the command ends with
RESERVATION CONFLICT status.
After ODD reservation is established, any commands, other than the INQUIRY,
REQUEST SENSE, and RELEASE commands, issued by an INIT other than the
SCSI device that reserved the ODD are rejected. The RESERVATION
CONFLICT status is reported to the INIT that issued the command. The
INQUIRY and REQUEST SENSE commands are executed normally even while
the ODD is reserved for another SCSI device. The RELEASE command ends
with GOOD status, but any RELEASE command issued by a SCSI device having
no reservation authority for the applicable ODD is ignored.
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4.3.8 RELEASE command
Table 4.40 RELEASE command
Bit
Byte
0 Operation Code (17h)
1LUN Reserved
2-5 Reserved
76543210
The RELEASE command releases the ODD reserved by the INIT that issued this
command. When any of the following conditions is met, the command ends with
GOOD status but it does not affect the reserved status of the ODD:
• The reserved status created by the INIT that has issued this command is not in
the ODD.
• The reserved status of the type of release target specified by CDB of this
command is not in the ODD.
• The specified ODD may is reserved for another SCSI device.
Any values specified for CDB bytes 1 to 5 are ignored. However, INIT should
specify 00h for these bytes.
In terms of the entire ODD (logical unit), the RELEASE command releases any
reserved status for which the INIT that issued the command has reservation
authority.
4.3.9 REQUEST SENSE command
Table 4.41 REQUEST SENSE command
Bit
Byte
0 Operation Code (03h)
1LUN Reserved
2-3 Reserved
4 Allocation Length
5 Reserved
76543210
The REQUEST SENSE command transfers sense data to the INIT. Sense data
indicates detailed error information related to the command for which an error was
previously reported. If no error was previously reported for a command, Sense
Key indicates NO SENSE.
When issuing the REQUEST SENSE command to detect the device status, first
issue the TEST UNIT READY command, then issue the REQUEST SENSE
command.
Allocation Length specifies the length of sense data to be transferred, in bytes. If
0 is specified, the command does not transfer any data and ends normally.
4-26 C156-E224-01EN
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