Fujitsu MAF3364LC User Manual

MAF3364LC/LP/MC/MP SERIES

MAE3182LC/LP, MAE3091LC/LP

SERIES

MAG3182LC/LP/MC/MP,

MAG3091LC/LP/MC/MP SERIES

DISK DRIVES

PRODUCT MANUAL

C141-E064-03EN

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FOR SAFE OPERATION

Handling of This manual

This manual contains important information for using this product. Read thoroughly before

using the product. Use this product only after thoroughly reading and understanding

especially the section “Important Alert Items” in this manual. Keep this manual handy, and

keep it carefully.

FUJITSU makes every effort to prevent users and bystanders from being injured or from

suffering damange to their property. Use the product according to this manual.

Functional Limitations

There may be certain functional limitations concerning the specifications and functions of the

products covered by this manual depending on the equipment version, especially concerning

the following functions.

Versions in which there functions can be used will be communicated through

“ENGINEERING CHANGE REQUEST/NOTICE”, issued by Fujitsu.

Function

Equipment Version Which Supports These Functions

Equipment EPROM Standard INQUIRY Data Product

Version No. Version Revision (ASCII)

No.

READ RAM Command

WRITE RAM Command

These commands cannot be used in the current version.

(Proceed to the Copyright Page)

C141-E064-03EN

iii

Related Standards

Specifications and functions of products covered by this manual comply with the following

standards.

Standard (Text) No.

Name

Enacting Organization

American National

ANSI X3.131-1986

American National Standard for

Information Systems—Small Computer Standards Institute

System Interface (SCSI)

(ANSI)

ANSI X3.131-1994

X3T9.2/85-52 Rev 4.B

X3T9.2 855D Rev 12

X3T10/10T1D Rev 6

American National Standard for

Information Systems—Small Computer Standards Institute

System Interface - 2(SCSI-2) (ANSI)

American National

COMMON COMMAND SET (CCS) American National

of the Small Computer

System Interface (SCSI)

Standards Institute

(ANSI)

WORKING DRAFT Information

Technology SCSI-3 Parallel Interface Standards Institute

(ANSI)

American National

Dfaft proposed

American National

Standards Institute

(ANSI)

American National Standard for

Information Systems—SCSI-3

Fast-20 Parallel Interface

(Fast 20-SCSI)

C141-E064-03EN

PREFACE

This manual describes the MAF3364LC/LP/MC/MP (hereafter, MAF series), MAE3182LC/LP,

MAE3091LC/LP, (hereafter, MAE series), and MAG3182LC/LP/MC/MP, MAG3091LC/LP/MC/MP

(hereafter, MAG series), 3.5-inch fixed disk drives with an embedded SCSI controller.

This manual details the specifications and functions of the above disk drive, and gives the requirements

and procedures for installing it into a host computer system.

This manual is written for users who have a basic understanding of fixed disk drives and their use in

computer systems. The MANUAL ORGANIZATION section describes organization and scope of this

manual. The need arises, use the other manuals.

Chapter 1

GENERAL DESCRIPTION

This chapter introduces the MAF series, MAE series and MAG series disk drives and discusses their

standard features, hardware, and system configuration.

Chapter 2

SPECIFICATIONS

This chapter gives detailed specifications of the MAF series, MAE series and MAG series disk drives

and their installation environment.

Chapter 3

DATA FORMAT

This chapter describes the data structure of the disk, the address method, and what to do about media

defects.

Chapter 4

INSTALLATION REQUIREMENTS

This chapter describes the basic physical and electrical requirements for installing MAF series, MAE

series and MAG series disk drives.

Chapter 5

INSTALLATION

This chapter explains how to install MAF series, MAE series and MAG series disk drives. It includes

the notice and procedures for setting device number and operation modes, mounting the disk drive,

connecting the cables, and confirming drive operation.

Chapter 6

DIAGNOSIS and MAINTENANCE

This chapter describes the automatic diagnosis, and maintenance of the MAF series, MAE series and

MAG series disk drive.

APPENDIX

A to D

The appendixes give supplementary information, including the locations of mounting setting terminals

and connectors, a list of setting items, the signal assignments of interface connectors, lists of model

names and product numbers, and SCSI interface functions.

The model numbers have a suffix that describes the electrical requirements of the SCSI interface

between host system and disk drive, the data formatted at the factory and device type.

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CONVENTIONS

This manual uses the following conventions for alerts to prevent physical or property damages to users

or by standards.

DANGER

DANGER indicates that personal injury will occur if the user does not perform the procedure

correctly.

WARNING

WARNING indicates that personal injury could occur if the user does not perform the procedure

correctly.

CAUTION

CAUTION indicates that either minor or moderate personal injury may occur if the user does not

perform the procedure correctly.

NOTICE

NOTICE indicates that inconvenience to the user such as damages to the product, equipment, data,

and/or other property may occur if the user does not pay attention or perform the procedure correctly.

IMPORTANT

IMPORTANT indicates information that the helps the user use the product more effectively.

Indicates

This manual indicates;

Decimal number: Indicates as it is.

Hexadecimal number: Indicates as X’17B9’, 17B9h, or 17B9H

Binary number: Indicates as “010”

C141-E064-03EN

DISCLAIMER

Failure of the MAF series, MAE series and MAG series intelligent disk drive is defined as a failure

requiring adjustments, repairs, or replacement. Fujitsu is not responsible for drive failures caused by

misuse by the user, poor environmental conditions, power trouble, host problems, cable failures, or any

failure not caused by the drive itself.

The suffix of the model name of the disk drive varies depending on the electrical requirements,

capacity, and data format at factory shipment of the SCSI, i.e., the interface for connecting the three

device types or host system and the disk drives (Note 1). However, in this manual, the typical model

names (Note 2) are used unless otherwise noted. These disk drives may be called intelligent disk

drives (IDD), drives, or devices in this manual.

Note 1:

Model names

M AF 3 364 LC

Interface types LC: LVD, 16-bit SCSI SCA2 connector

LP: LVD, 16-bit SCSI 68 pin connector

MC: LVD, 16-bit SCSI SCA2 connector 160MHz

transfer

MP: LVD, 16-bit SCSI 68 pin connector 160MHz

Formatted capacity (100 MB units)

Disk size

Type

3: 3.5 inch

AE: 1-inch height (7,200rpm)

AF: 1.6-inch height (10,025rpm)

AG: 1-inch height (10,025rpm)

Note 2:

Type model name

MAE3182

Model name

MAE3182LC, MAE3182LP

MAE3091

MAE3091LC, MAE3091LP

MAF3364

MAF3364LC, MAF3364LP, MAF3364MC, MAF3364MP

MAG3182LC, MAG3182LP, MAG3182MC, MAG3182MP

MAG3091LC, MAG3091LP, MAG3091MC, MAG3091MP

MAG3182

MAG3091

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vii

Important Alert Items

Important Alert Messages

The important alert messages in this manual are as follows:

A hazarous 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 produt or other property, may occur if the

user does not perform the procedure correctly.

Task

Alert message

Page

4-10

Mounting Installation

Heat

An air flow with an adequate wind velocity must be maintained

to deal with much heat generated from the MAF3364xx.

Reference value: An air flow with a wind velocity of more than

0.5 m/s is required in an environment at 40°C,

and an air flow with a wind velocity of more

than 1.0m/s in an environment at 45°C (Center

of DE cover 55°C).

5-5

Data loss

1. The user must not change the setting of terminals not

described in this section. Do not change setting status set at

factory shipment.

2. Do not change the setting of terminals except following

setting pins during the power is turned on.

• Write protect: CN2 9-10

3. To short the setting terminal, use the short plug attached

when the device is shipped from the factory.

5-11

6-4

Damage

1. Check that system power is off before connecting or

disconnecting cables.

2. Do not connect or disconnect cables when power is on.

Data loss

When the SEND DIAGNOSTIC command terminates with the

CHECK CONDITION status, the INIT must collect the error

information using the REQUEST SENSE command. The

RECEIVE DIAGNOSTIC RESULTS command cannot read out

the error information detected in the self-diagnostics.

6-5

6-6

Damage

Do not open the DE in the field because it is completely sealed.

Data loss

Save data stored on the disk drive before requesting repair.

Fujitsu does not assume responsibility if data is destroyed

during servicing or repair.

viii

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MANUAL ORGANIZATION

PRODUCT

MANUAL

1. General Description

2. Specifications

3. Data Format

(This manual)

4. Installation Requirements

5. Installation

6. Diagnostics and Maintenance

SCSI Physical

Interface

1. SCSI Bus

2. SCSI Message

Specifications

3. SCSI Bus Error Recovery Processing

SCSI Logical

Interface

Specifications

1. Command Processing

2. Data Buffer Management

3. Command Specification

4. Sense Data and error Recovery Procedure

5. Disk Medium Management

Maintenance

Manual

1. Specifications and Equipment Configuration

2. Maintenance and Diagnostics

3. Error Analysis

4. Removal and Replacement Procedures

5. Principle of Operation

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CONTENTS

page

CHAPTER 1 GENERAL DESCRIPTION .......................................................................... 1-1

1.1

1.2

1.3

Standard Features ........................................................................................................... 1-2

Hardware Structure......................................................................................................... 1-5

System Configuration..................................................................................................... 1-10

CHAPTER 2 SPECIFICATIONS......................................................................................... 2-1

2.1 Hardware Specifications................................................................................................. 2-1

2.1.1 Model name and part number......................................................................................... 2-1

2.1.2 Function specifications................................................................................................... 2-2

2.1.3 Environmental specifications.......................................................................................... 2-4

2.1.4 Error rate......................................................................................................................... 2-5

2.1.5 Reliability....................................................................................................................... 2-5

2.2

SCSI Function Specifications......................................................................................... 2-7

CHAPTER 3 DATA FORMAT ............................................................................................ 3-1

3.1 Data Space...................................................................................................................... 3-1

3.1.1 Cylinder configuration.................................................................................................... 3-1

3.1.2 Alternate spare area ........................................................................................................ 3-5

3.1.3 Track format ................................................................................................................... 3-6

3.1.4 Sector format .................................................................................................................. 3-8

3.1.5 Format capacity .............................................................................................................. 3-10

3.2

3.3

Logical Data Block Addressing...................................................................................... 3-11

Defect Management........................................................................................................ 3-12

3.3.1 Defect list ....................................................................................................................... 3-12

3.3.2 Alternate block allocation............................................................................................... 3-12

CHAPTER 4 INSTALLATION REQUIREMENTS .......................................................... 4-1

4.1

Mounting Requirements................................................................................................. 4-1

4.1.1 External dimensions ....................................................................................................... 4-1

4.1.2 Mounting........................................................................................................................ 4-8

4.1.3 Notes on mounting ......................................................................................................... 4-8

4.2

Power Supply Requirements .......................................................................................... 4-13

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4.3

Connection Requirements .............................................................................................. 4-16

4.3.1 68 pin connector 16-bit model (LP/MP)......................................................................... 4-16

4.3.2 SCA2 type SCSI model (LC/MC) .................................................................................. 4-24

4.3.3 Cable connector requirements ........................................................................................ 4-28

4.3.4 External operator panel................................................................................................... 4-29

CHAPTER 5 INSTALLATION............................................................................................ 5-1

5.1

5.2

5.3

Notes on Handling Drives .............................................................................................. 5-1

Connections.................................................................................................................... 5-3

Setting Terminals............................................................................................................ 5-5

5.3.1 SCSI ID setting............................................................................................................... 5-6

5.3.2 Each mode setting .......................................................................................................... 5-7

5.3.3 Mode settings ................................................................................................................. 5-9

5.4

Mounting Drives ............................................................................................................ 5-10

5.4.1 Check before mounting .................................................................................................. 5-10

5.4.2 Mounting procedures...................................................................................................... 5-10

5.5

5.6

Connecting Cables.......................................................................................................... 5-11

Confirming Operations after Installation and Preparation for use .................................. 5-12

5.6.1 Confirming initial operations.......................................................................................... 5-12

5.6.2 Checking SCSI connection............................................................................................. 5-13

5.6.3 Formatting ...................................................................................................................... 5-16

5.6.4 Setting parameters .......................................................................................................... 5-18

5.7

Dismounting Drives ....................................................................................................... 5-22

CHAPTER 6 DIAGNOSTICS AND MAINTENANCE ...................................................... 6-1

6.1 Diagnostics..................................................................................................................... 6-1

6.1.1 Self-diagnostics .............................................................................................................. 6-1

6.1.2 Test programs................................................................................................................. 6-4

6.2

Maintenance Information ............................................................................................... 6-5

6.2.1 Maintenance requirements.............................................................................................. 6-5

6.2.2 Revision numbers........................................................................................................... 6-7

APPENDIX A LOCATIONS OF CONNECTORS AND SETTING TERMINALS .......... A-1

A.1

Locations of Connectors and Setting Terminals

(LC/MC models: SCA2 type LVD 16-bit SCSI) ........................................................... A-2

xii

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A.2

Locations of Connectors and Setting Terminals

(LP/MP models: 68 pin type LVD 16-bit SCSI)............................................................ A-3

APPENDIX B SETTING TERMINALS................................................................................ B-1

B.1 Setting Terminals............................................................................................................ B-2

APPENDIX C CONNECTOR SIGNAL ALLOCATION .................................................... C-1

C.1

C.2

SCSI Connector Signal Allocation: SCA2 type LVD 16-bit SCSI................................ C-2

SCSI Connector Signal Allocation: 68 pin type LVD 16-bit SCSI ............................... C-3

APPENDIX D MODEL NAMES AND PRODUCT NUMBERS ......................................... D-1

D.1 Model Names and Product Numbers.............................................................................. D-2

Index............................................................................................................................................ IN-1

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xiii

FIGURES

page

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

4.10

4.11

4.12

4.13

4.14

4.15

4.16

MAF series LC/MC outer view ...................................................................................... 1-5

MAF series LP/MP outer view ....................................................................................... 1-6

MAE series LC outer view ............................................................................................. 1-6

MAE series LP outer view.............................................................................................. 1-7

MAG series LC/MC outer view...................................................................................... 1-7

MAG series LP/MP outer view ...................................................................................... 1-7

Disk/head configuration ................................................................................................. 1-8

System configuration...................................................................................................... 1-10

Cylinder configuration.................................................................................................... 3-2

Spare area in cylinders.................................................................................................... 3-5

Alternate cylinder ........................................................................................................... 3-5

Track format ................................................................................................................... 3-6

Track skew/cylinder skew .............................................................................................. 3-7

Sector format .................................................................................................................. 3-8

Alternate block allocation by FORMAT UNIT command ............................................. 3-14

Alternate block allocation by REASSIGN BLOCKS command..................................... 3-15

External dimensions (MAF series LC/MC).................................................................... 4-2

External dimensions (MAF series LP/MP)..................................................................... 4-3

External dimensions (MAE series LC) ........................................................................... 4-4

External dimensions (MAE series LP)............................................................................ 4-5

External dimensions (MAG series LC/MC) ................................................................... 4-6

External dimensions (MAG series LP/MP) .................................................................... 4-7

IDD directions ................................................................................................................ 4-8

Mounting frame structure ............................................................................................... 4-9

Limitation of side-mounting........................................................................................... 4-9

Surface temperature measurement points (MAF series, MAE series, MAG series)........ 4-10

Service clearance area..................................................................................................... 4-11

Air pressure adjustment hole .......................................................................................... 4-12

Current waveform (+12 VDC)........................................................................................ 4-13

Power on/off sequence (1).............................................................................................. 4-14

Power on/off sequence (2).............................................................................................. 4-14

Power on/off sequence (3).............................................................................................. 4-14

xiv

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4.17

4.18

4.19

4.20

4.21

4.22

4.23

4.24

4.25

4.26

4.27

4.28

4.29

4.30

5.1

AC noise filter (recommended) ...................................................................................... 4-15

Connectors and terminals location (LP/MP)................................................................... 4-16

16-bit SCSI interface connector...................................................................................... 4-17

Power supply connector (16-bit SCSI model) ................................................................ 4-17

External operator panel connector (CN1) ....................................................................... 4-18

External operator panel connector (CN2) ....................................................................... 4-19

16-bit SCSI ID external input......................................................................................... 4-20

Output signal for external LED ...................................................................................... 4-21

SCSI cables connection .................................................................................................. 4-23

Connectors and terminals location of SCA2 type SCSI model....................................... 4-24

SCA2 type SCSI connector ............................................................................................ 4-25

External operator panel connector (CN2) ....................................................................... 4-26

16-bit SCSI ID external input......................................................................................... 4-27

External operator panel circuit example (LP/MP) .......................................................... 4-29

SCSI bus connections..................................................................................................... 5-3

IDD setting terminals position........................................................................................ 5-5

Setting terminals (CN2).................................................................................................. 5-6

Checking the SCSI connection (A)................................................................................. 5-14

Checking the SCSI connection (B)................................................................................. 5-15

Revision label................................................................................................................. 6-7

Indicating revision numbers ........................................................................................... 6-8

Locations of connectors and setting terminals

5.2

5.3

5.4

5.5

6.1

6.2

A.1

(LC/MC models: SCA2 type LVD 16-bit SCSI)............................................................... A-2

Locations of connectors and setting terminals

A.2

(LP/MP models: 68 pin type LVD 16-bit SCSI)................................................................ A-3

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TABLES

page

2.1

2.2

2.3

3.1

3.2

3.3

3.4

4.1

4.2

5.1

5.2

5.3

5.4

5.5

5.6

5.7

5.8

6.1

B.1

C.1

C.2

D.1

Function specifications................................................................................................... 2-2

Environmental/power requirements................................................................................ 2-4

SCSI function specifications........................................................................................... 2-7

Zone layout and track capacity (MAE series)................................................................. 3-3

Zone layout and track capacity (MAG series) ................................................................ 3-3

Zone layout and track capacity (MAF series)................................................................. 3-3

Format capacity .............................................................................................................. 3-10

Surface temperature check point..................................................................................... 4-10

Recommended components for connection.................................................................... 4-28

SCSI ID setting (CN2).................................................................................................... 5-7

Setting SCSI terminal power supply (LP/MP)................................................................ 5-7

Motor start mode setting................................................................................................. 5-8

Write protect setting (CN2) ............................................................................................ 5-8

Setting of the SCSI interface operation mode (CN2)...................................................... 5-9

Setting of the bus width of the SCSI interface (CN2)..................................................... 5-9

Default mode settings (by CHANGE DEFINITION command)..................................... 5-9

Setting check list ............................................................................................................ 5-10

Self-diagnostic functions ................................................................................................ 6-1

Setting terminal: CN2.................................................................................................... B-2

SCSI connector (SCA2 type LVD 16-bit SCSI): CN1................................................... C-2

SCSI connector (68 pin type LVD 16-bit SCSI): CN1 .................................................. C-3

MAE, MAF and MAG series model names and product numbers ................................. D-2

xvi

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CHAPTER 1

GENERAL DESCRIPTION

1.1 Standard Features

1.2 Hardware Structure

1.3 System Configuration

This chapter describes the feature and configuration of the intelligent disk drives (IDD).

IDDs are high performance large capacity 3.5-inch fixed disk drives with an embedded SCSI

controller.

The interface between the IDD and host system is based on SCSI (Small Computer System Interface)

standard [ANSI X3.131 - 1986: Small Computer System Interface (SCSI), ANSI X3.131-1994: Small

Computer System Interface - 2 (SCSI-2)].

The flexibility and expandability of the SCSI, as well as the powerful command set of the IDD, allow

the user to construct a high-performance reliable disk subsystem with large storage capacity.

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1 - 1

1.1

Standard Features

(1)

Compactness

Since the SCSI controller circuit is embedded in the standard 3.5-inch fixed disk drive form

factor, the IDD is extremely compact. The IDD can be connected directly to the SCSI bus of

the host system .

(2)

(3)

(4)

SCSI/CCS standard

The IDD provides not only SCSI basic functions but also the following features:

Arbitration

Disconnection/reselection

Data bus parity

Command set which meets the logical specification of the SCSI CCS (Common

Command Set for Direct Access Device) requirements (Rev. 4.B)

The SCSI commands can manipulate data through logical block addressing regardless of the

physical characteristics of the disk drive. This allows software to accommodate future

expansion of system functions.

8-bit SCSI/16-bit SCSI

The IDD has 16-bit data bus width (16-bit SCSI), which have the wide transfer function

suitable for SCSI-2. This is also available as 8-bit data bus.

8-bit SCSI: Up to eight SCSI devices can be connected on the same SCSI bus.

16-bit SCSI: Up to 16 SCSI devices can be connected on the same SCSI bus.

For the ultra SCSI model, number of connectable SCSI devices on the same SCSI bus is varied

as follows.

Up to 4 SCSI devices having capacitance of 25 pF: Cable length of up to 3.0 m.

5 to 8 SCSI devices having capacitance of 25 pF: Cable length of up to 1.5 m

High speed data transfer

8-bit SCSI:

The data transfer rate on the SCSI bus is 40 MB/s maximum in

synchronous mode.

16-bit SCSI: The data transfer rate on the SCSI bus is 80 MB/s maximum in

synchronous mode for LC/LP models and 160 MB/s maximum in

synchronous mode for MC/MP models.

Such a high data transfer rate on the SCSI bus can be useful with the large capacity buffer in

the IDD.

1 - 2

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Note:

The maximum data transfer rate in asynchronous mode may be limited by the response

time of initiator and the length of SCSI bus length. The maximum data transfer rate in

synchronous mode may be limited by the cable length, transmission characteristics of the

SCSI bus and the connected SCSI device number.

(5)

Continuous block processing

The addressing method of data blocks is logical block address. The initiator can access data

by specifying block number in a logically continuous data space without concerning the

physical structure of the track or cylinder boundaries.

The continuous processing up to [64K-1] blocks in a command can be achieved, and IDD can

perform continuous read/write operation when processing data blocks on several tracks or cylinder.

(6)

Programmable multi-segment data buffer

The data buffer is 2M bytes for LC/LP and 4M bytes for MC/MP. Data is transferred between

SCSI bus and disk media through this data buffer. The data buffer is divided into 1 to 32

segments.

This feature provides the suitable usage environment for users.

Since the initiator can control the disconnect/reconnect timing on the SCSI bus by specifying

the condition of stored data to the data buffer or empty condition of the data buffer, the

initiator can perform the effective input/output operations with utilizing high data transfer

capability of the SCSI bus regardless of actual data transfer rate of the disk drive.

(7)

(8)

(9)

Read-ahead cache feature

After executing the READ command, the IDD reads automatically and stores (prefetches) the

subsequent data blocks into the data buffer (Read-ahead caching).

The high speed sequential data access can be achieved by transferring the data from the data buffer

without reaccessing the disk in case the subsequent command requests the prefetched data blocks.

Command queuing feature

The IDD can queue maximum 128 commands, and optimizes the issuing order of queued

commands by the reordering function. This feature realizes the high speed processing.

Recordering algorithm is adopted to prevent a specific command from staying in a queue for

more than 3 seconds.

Reserve and release functions

The IDD can be accessed exclusively in the multi-host or multi-initiator environment by using

the reserve and release functions.

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1 - 3

(10)

Error recovery

The IDD can try to recover from errors in SCSI bus or the disk drive using its powerful retry

processing. If a recoverable data check occurs, error-free data can be transferred to the

initiator after being corrected in the data buffer. The initiator software is released from the

complicated error recover processing by these error recovery functions of the IDD.

(11)

(12)

Automatic alternate block reassignment

If a defective data block is detected during read, the IDD can automatically reassign its

alternate data block.

Programmable data block length

Data can be accessed in fixed-block length units. The data block length is programmable, and

can at initializing with a multiple of two for LC/LP and four for MC/MP within the range of

512 to 528 bytes.

(13)

Defective block slipping

A logical data block can be reallocated in a physical sequence by slipping the defective data

block at formatting. This results in high speed contiguous data block processing without a

revolution delay due to defective data block.

(14)

(15)

High speed positioning

A rotary voice coil motor achieves fast positioning.

Large capacity

A large capacity can be obtained from 3.5-inch disk drives by dividing all cylinders into

several partitions and changing the recording density on each partition (constant density

recording). The disk subsystem with large capacity can be constructed in the good space

efficiency.

(16)

(17)

Start/Stop of spindle motor

Using the SCSI command, the host system can start and stop the spindle motor.

Diagnosis

The IDD has a diagnostic capability which checks internal controller functions and drive

operations to facilitate testing and repair.

1 - 4

C141-E028-01EN

(18)

(19)

Low power consumption

By using highly integrated LSI components, the power consumption of the IDD is very low,

and this enables the unit to be used in wide range of environmental conditions.

Low noise and low vibration

The noise level is low; approx. 4.2 bels for MAF series and 4.0 bels for MAE and MAG

series. This makes it ideal for office use. The IDD has rubber vibration isolators, which

minimize the transfer of vibration.

(20)

Microcode downloading

The IDD implements the microcode download feature.

maintainability of the IDD and function enhancing.

This feature achieves easy

1.2

Hardware Structure

An outer view of the IDD is given in Figures 1.1 to 1.6. The IDD is composed of the disk,

head, spindle motor, hermetically sealed disk enclosure (DE) with actuator and air circulation

filter, as well as read/write pre-amp with the print card unit (PCA) of the controller.

Figure 1.1 MAF series LC/MC outer view

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1 - 5

Figure 1.2 MAF series LP/MP outer view

Figure 1.3 MAE series LC outer view

1 - 6

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Figure 1.4 MAE series LP outer view

Figure 1.5 MAG series LC/MC outer view

Figure 1.6 MAG series LP/MP outer view

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1 - 7

(1)

Disks

The disks have an outer diameter of 95 mm (3.74 inch) and inner diameter of 25 mm (0.98

inch) for MAE series, and 84 mm (3.3 inch) outer diameter and 25 mm (0.98 inch) inner

diameter for MAF/MAG series. The disks are good for at least 15,000 contact starts and stops.

Each model contains following number of disks.

MAF3364: 10

MAE3182: 4

MAE3091: 2

MAG3182: 5

MAG3091: 3

(2)

Heads

The MR (Magnet - Resistive) of the CSS (contact start/stop) type heads are in contact with the

disks when the disks are not rotating, and automatically float when the rotation is started.

Figure 1.7 shows the configuration of disks and heads

MAF3364

MAG3182

MAG3091

MAE3182

MAE3091

Head No.

Figure 1.7 Disk/head configuration

1 - 8

C141-E064-03EN

(3)

(4)

Spindle motor

The disks are rotated by a direct-drive hall-less DC motor. The motor speed is controlled by a

feedback circuit using the counter electromotive current to precisely maintain the speed at

±0.5% of the specified speed.

Actuator

The actuator, which uses a rotary voice coil motor (VCM), consumes little power and

generates little heat. The head assembly at the end of the actuator arm is controlled and

positioned via feedback of servo information in the data.

The actuator positions heads on the CCS zone over the disk and is locked by the mechanical

lock when the power is off or the spindle motor is stopped.

(5)

Air circulation (recirculation filter, breather filter)

The heads, disks, and actuator are hermetically sealed inside a disk enclosure (DE) to keep out

dust and other pollutants. The DE has a closed-loop air recirculation system. Using the

movement of the rotating disks, air is continuously cycled through a filter. This filter will trap

any dust generated inside the enclosure and keep the air inside the DE contaminant free. To

prevent negative pressure in the vicinity of the spindle when the disks begin rotating, a

breather filter is attached. The breather filter also equalizes the internal air pressure with the

atmospheric pressure due to surrounding temperature changes.

(6)

(7)

Read/write circuit

The read/write circuit utilizes a read channel mounted with a head IC that supports high-speed

transmission and an EPR4ML (Extended Partial Response Class 4 Maximum Likelihood)

modulation/demodulation circuit in order to prevent errors being triggered by external noise

and to improve data reliability.

Controller circuit

The controller circuit uses LSIs to increase the reliability and uses a high speed

microprocessing unit (MPU) to increase the performance of the SCSI controller.

C141-E064-03EN

1 - 9

1.3

System Configuration

Figure 1.8 shows the system configuration. The IDDs are connected to the SCSI bus of host

systems and are always operated as target. The IDDs perform input/output operation as

specified by SCSI devices which operate as initiator.

Figure 1.8 System configuration

(1)

SCSI bus configuration

Up to eight SCSI devices operating as an initiator or a target can be connected to the SCSI bus

for the 8-bit SCSI and up to 16 SCSI devices operating as an initiator or a target can be

connected to the SCSI bus for the 16-bit SCSI in any combination.

For example, the system can be configured as multi-host system on which multiple host

computers that operate as initiator or connected through the SCSI bus.

Using disconnect/reconnect function, concurrent input/output processing is possible on multi-

SCSI devices.

1 - 10

C141-E064-03EN

(2)

Addressing of peripheral device

Each SCSI device on the bus has its own unique address (SCSI ID:#n in Figure 1.6). For

input/output operation, a peripheral device attached to the SCSI bus that operates as target is

addressed in unit called as logical unit. A unique address (LUN: logical unit number) is

assigned for each logical unit.

The initiator selects one SCSI device by specifying that SCSI ID, then specifies the LUN to

select the peripheral device for input/output operation.

The IDD is constructed so that the whole volume of disk drive is a single logical unit, the

selectable number of SCSI ID and LUN are as follows:

SCSI ID:

LUN:

8-bit SCSI:Selectable from 0 to 7 (switch selectable)

16-bit SCSI:Selectable from 0 to 15 (switch selectable)

0 (fixed)

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1 - 11

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CHAPTER 2

SPECIFICATIONS

2.1 Hardware Specifications

2.2 SCSI Function Specifications

This chapter describes specifications of the IDD and the functional specifications of the SCSI.

2.1

Hardware Specifications

2.1.1

Model name and part number

Each model has a different data format and front panel type when shipped. (See Appendix D

for the model name (type) and product number.)

The data format can be changed by reinitializing with the user's system.

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2 - 1

2.1.2

Function specifications

Table 2.1 shows the function specifications of the IDD.

Table 2.1

Function specifications

Specification

MAF3364 series

36.4 GB

Item

MAE3182 series

MAE3091 series

MAG3182 series

MAG3091 series

Formatted capacity/device (*1)

Unformatted capacity/device

Number of disks

18.2 GB

9.1 GB

18.2 GB

23.0 GB

9.1 GB

23.1 GB

11.5 GB

45.6 GB

11.5 GB

Number of heads

Number of cylinders (*2)

Formatted capacity/track (B)

Number of rotations (rpm)

Average latency time

12,000

10,200

9,866

139,776 to 215,040

10,025±0.5%

2.993 msec

0.7 ms (Read)/

143,360 to 217,600

7,200±0.5%

143,872 to 215,040

4.167 msec

Minimum

0.7 ms (Read)/

1.1 ms (Write)

7.0 ms (Read)/

7.5 ms (Write)

12.4 ms (Read)/

13.5 ms (Write)

0.7 ms (Read)/

0.9 ms (Write)

5.5 ms (Read)/

6.0 ms (Write)

12.0 ms (Read)/

13.0 ms (Write)

Seek time (*3)

(Read/Write)

1.1 ms (Write)

5.2 ms (Read)/

5.8 ms (Write)

11.0 ms (Read)/

12.0 ms (Write)

Average

Maximum

Start time

Stop time

30 s typ. (60 s max.)

30 s typ.

Start/stop time

(*4)

Recording mode

EPR4ML

Recording density (max)

Track density

270 kbpi

275 kbpi

13,500 TPI

13,250 TPI

External dimensions

Height

Width

Depth

25.4 mm

101.6 mm

146.0 mm

41.3 mm

101.6 mm

146.0 mm

25.4 mm

101.6 mm

146.0 mm

Weight

0.6 kg

1.1 kg

15 W

0.7 kg

Power consumption (*5)

8 W

6 W

11 W

9 W

Interface

Fast SCSI

(Single-Ended)

Cable length: 6 m max

Fast 20 SCSI

(Single-Ended)

Cable length: 3 m max (*6)

Cable length: 1.5 m max (*7)

Fast 80 SCSI

(LVD)

Cable length: 25 m max (*8)

Cable length: 12 m max (*9)

Disk drive

21.7 to 32.79 MB/s

30.31 to 44.68

MB/s

29.45 to 44.68 MB/s

Data transfer

rate (*10)

SCSI Synchronous

mode

80 MB/s max. (LC/LP models)

160 MB/s max. (MC/MP models)

512 to 528 byte (Fixed length)

80 MB/s max. (LC/LP models)

Logical data block length (*1)

SCSI command specification

ANSI X3.13-1986 and CCS (Rev. 4B) conformity

(SCSI-2 ANSI X3T9.2/86-109 Rev. 10h) command support

SCSI-3 command partial support

Data buffer

2 MB FIFO ring buffer (LC/LP models), 4 MB FIFO ring buffer (MC/MP models), multi-segment buffer:

Segment count 1 to 32, Read-ahead cache

2 - 2

C141-E064-03EN

(*1)

(*2)

(*3)

The formatted capacity can be changed by changing the logical block length and using spare

sector space. See Chapter 3 for the further information.

The number of user cylinders indicates the max., and includes the alternate cylinder. The

number of user cylinders and alternate cylinders can be specified at format of the IDD.

The positioning time is as follows:

Seek time [ms]

2000

4000

6000

8000

10000 12000

2000

4000

6000

8000

10000 12000

Seek Difference

MAE series/MAG series

MAF series

(*4)

The start time is the time from power on or start command to when the IDD is ready, and stop

time is the time for disks to completely stop from power off or stop command.

(*5)

(*6)

(*7)

(*8)

(*9)

(*10)

This value indicates at ready mode.

Up to 4 SCSI devices having capacitance of 25pF or less can use cable length of up to 3.0 m.

5 to 8 SCSI devices having capacitance of 25pF or less can use cable length of up to 1.5 m.

1 on 1 connection case.

1 host, 15 devices case.

The maximum data transfer rate may be restricted to the response speed of initiator and by

transmission characteristics.

(*11)

The terminator power pin (SCSI connector) which supplies power to other terminators is not

used.

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2 - 3

2.1.3

Environmental specifications

Table 2.2 lists environmental and power requirements.

Table 2.2

Environmental/power requirements

MAE3182 series MAE3091 series MAF3364 series MAG3182 series MAG3091 series

Operating

5 to 50°C

–40 to 60°C

5 to 55°C

Non-operating

Temperature (*1)

Relative humidity

DE surface temperature atoperating

Gradient

15°C/h or less

20 to 80%RH

Operating

Non operating

20 to 80%RH

Packaged (inside of a week) 5 to 90%RH

Maximum wet bulb temperature

Operating (*3)

29°C (no condensation)

0.3 mm (5 to 20Hz)/0.5G (20 to 250 Hz) or less

Vibration (*2)

Shock (*2)

Non-operating (*4)

3.1 mm (5 to 20Hz)/5G (20 to 250Hz) or less

Packaged 3.1 mm (5 to 20Hz)/5G (20 to 250Hz) or less

Operating

20G (2 ms)

175G (2 ms)

Non-operating

Operating

–60 m to 3,000 m

–60 m to 12,000 m

Altitute

(above sea level)

Non-operating

+12 VDC ±5%

Ready (Average)

0.4 A

0.8 A

0.25 A

0.7 A

0.9 A

3.2 A

0.65 A

3.0 A

Power

requirements

Input power (*5)

Peak within

100 ms at spin-up

3.0 A

Random W/R

(about 80 IOPS)

1.3 A

0.8 A

1.0 A

0.7 A

0.9 A

+5 VDC ±5%

(*6)

Ready

0.6 A

6.8 A

Random W/R

(about 80 IOPS)

Ripple (*7)

+5 V 250 mVp-p, +12 V 250 mVp-p

(*1)

(*2)

For detail condition, see Section 4.1.

Vibration applied to the drive is measured at near the mounting screw hole on the frame as

much as possible.

(*3)

(*4)

At random seek write/read and default on retry setting with log sweep vibration.

At power-off state after installation

Vibration displacement should be less than 2.5 mm.

(*5)

(*6)

Input voltages are specified at the connector.

The terminator power pin (SCSI connector) which supplies power to other terminators is not

used (See Section 4.3).

(*7)

High frequency noise is less than 100 mVp-p.

2 - 4

C141-E064-03EN

2.1.4

Error rate

Errors detected during initialization and replaced by alternate block assignments are not

included in the error rate. Data blocks to be accessed should be distributed over the disk

medium equally.

(1)

(2)

Unrecoverable error rate

Errors which cannot be recovered within 63 retries and ECC correction should not exceed 10

per 10¹⁵bits.

Positioning error rate

Positioning errors which can be recovered by one retry should be 10 or less per 10⁸seeks.

2.1.5

Reliability

(1)

Mean Time Between Failures (MTBF)

MTBF of the IDD during its life time is 1,000,000 hours (operating: 24 hours/day, 7

days/week average DE surface temperature: 40°C or less).

Note:

The MTBF is defined as:

Operating time (hours) at all field sites

MTBF=

The number of equipment failures from all field sites

Failure of the equipment means failure that requires repair, adjustments, or replacement.

Mishandling by the operator, failures due to bad environmental conditions, power trouble,

host system trouble, cable failures, or other failures not caused by the equipment are not

considered.

(2)

Mean Time To Repair (MTTR)

MTTR is the average time taken by a well-trained service mechanic to diagnose and repair a

drive malfunction. The drive is designed for a MTTR of 30 minutes or less.

C141-E064-03EN

2 - 5

(3)

Service life

The service life under suitable conditions and treatment is as follows.

The service life is depending on the environment temperature. Therefore, the user must design

the system cabinet so that the average DE surface temperature is as possible as low.

DE surface temperature: 40°C or less

DE surface temperature: 45°C or less

DE surface temperature: 46°C to 50°C

DE surface temperature: 51°C to 55°C

DE surface temperature: 56°C and more strengthen cooling power so that DE

surface temperature is 55°C or less.

5 years

4.5 years

4 years

3.5 years

Even if the IDD is used intermittently, the longest service life is 5 years.

Note:

The "average DE surface temperature" means the average temperature at the DE surface

throughout the year when the IDD is operating.

(4)

Data security at power failure

Integrity of the data on the disk is guaranteed against all forms of DC power failure except on

blocks where a write operation is being performed. The above does not applied to formatting

disks or assigning alternate blocks.

2 - 6

C141-E064-03EN

2.2

SCSI Function Specifications

Table 2.3 shows the SCSI functions provided with the IDD.

Table 2.3

SCSI function specifications

Item

Specification

Single-ended type

HVD type (High Voltage Differential)

LVD type (Low Voltage Differential)

Electrical

requirements

(*1)

Single-ended type Position where the terminating

resistor is mounted on the PCA

Differential type

Position where the terminating

resistor is mounted on the PCA

TERMPWR signal send function

68 pin P cable connector

80 pin SCA2 connector

Connector

Data bus parity (*2)

Bus arbitration function

Disconnection/reconnection function

SCSI ID

16-bit SCSI

#0 to #15

(Jumper selection)

Addressing

LUN (logical unit number)

#0 fixed

Data transfer 8-bit SCSI (Single-Ended type)

O 20 MB/s max.

(Synchronous

mode)

(LVD type)

16-bit SCSI (Single-Ended type)

(LVD type)

O 40 MB/s max.

O 80 MB/s max.

O 160 MB/s max.

(160/m LVD type)

2 MB (LC/LP) or 4 MB

(MC/MP) programmable multi-

segment buffer (1 to 32)

Data buffer

512 to 528 bytes

(Fixed length)

Data block length (Logical data length=Physical data length) (*3)

O : Provided

´ : Not provided

(*1) Single-Ended and LVD detect the driver mode by Diffsence signal and automatically change.

(*2) Data bus CRC on MC/MP models.

(*3) Refer to (12) of Section 1.1.

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CHAPTER 3

DATA FORMAT

3.1 Data Space

3.2 Logical Data Block Addressing

3.3 Defect Management

This chapter explains data space definition, logical data block addressing, and defect management on

the IDD.

3.1

Data Space

The IDD manages the entire data storage area divided into the following three data spaces.

User space: Storage area for user data

Internal test space: Reserved area for diagnostic purposes

System space: Area for exclusive use of IDD itself

The user space allow a user access by specifying data. These space can be accessed with the

logical data block addressing method described in Section 3.2. The internal test space is used

by Read/write test of self-diagnostics test, but user can’t use direct access. The system space is

accessed inside the IDD at power-on or during the execution of a specific command, but the

user cannot directly access the system space.

3.1.1

Cylinder configuration

The IDD allocates cylinders to the user space, Internal test space, and system space. Figure

3.1 is the cylinder configuration.

Spare areas (alternate areas) for defective sectors are provided in the user space. Several

sectors in the last track of one cylinder and several cylinders (alternate cylinders) in the user

space are allocated as alternate areas according to the user's assignment (MODE SELECT

command). See Subsection 3.1.2 for details.

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3 - 1

Cylinder –37

Internal test cylinder

Internal test space

System space

Cylinder –30

SA22

•

Cylinder –26

Cylinder –4

SA0

Cylinder 0

Cylinder 1

Primary Cylinder 0

Primary Cylinder (m–1)

•

User space

•

m+n–1

m+n

(+ Cylinder Slip n)

Spare sector for each cylinder

m+n+1

10,200 / 9,866 / 12,000

(MAF) (MAG) (MAE)

* Spare sectors on the last track in each cylinder are not necessarily placed at the end of the track

because of a track skew or a cylinder skew. (Details are explained in Subsection 3.1.3.)

Figure 3.1 Cylinder configuration

Apart from the above logical configuration, the IDD intends to increase the storage capacity by

dividing all cylinders into several zones and changing a recording density of each zone.

Tables 3.1 and 3.3 show the zone layout and the track capacity.

3 - 2

C141-E064-03EN

Table 3.1

Zone layout and track capacity (MAE series)

Zone

Cylinder 0 to 1,699 1,700 to

3,599

3,600 to

4,549

4,550 to 4,910 to

5,800 to

6,419

6,420 to

6,789

4,909

208,896

408

5,799

202,752

396

Byte/track 217,600

217,600

425

211,968

414

196,608

384

193,536

378

Sector/track

425

Zone

Cylinder

6,790 to 8,090 to

8,890 to

9,249

9,250 to 9,930 to 10,510 to 11,880 to

8,089

8,889

175,104

342

9,929

165,888

324

10,509

159,744

312

11,879

147,456

288

11,999

143,360

280

Byte/track 184,320

172,032

336

Sector/track

360

Table 3.2

Zone layout and track capacity (MAG series)

Zone

Cylinder

0 to 679

680 to

1,559

1,560 to

2,409

2,410 to 3,140 to

3,470 to 4,120 to

4,119 4,659

3,139

207,360

405

3,469

204,800

400

Byte/track 215,040

215,040

420

215,040

420

199,680 194,560

Sector/track

420

390

380

Zone

Cylinder

4,660 to 4,940 to

5,990 to

6,919

6,920 to 7,500 to

7,980 to

9,149

9,150 to

9,865

4,939

5,989

184,320

360

7,499

168,960

330

7,979

163,840

320

Byte/track 192,000

174,080

340

153,600

300

139,776

273

Sector/track

375

Table 3.3

Zone layout and track capacity (MAF series)

Zone

Cylinder

0 to 899

900 to

1,999

2,000 to

3,019

3,020 to 3,730 to

4,030 to 4,670 to

4,669 5,189

3,729

207,360

405

4,029

204,800

400

Byte/track 215,040

215,040

420

215,040

420

199,680 194,560

Sector/track

420

390

380

Zone

Cylinder

5,190 to 5,460 to

6,460 to

7,369

7,370 to 7,930 to

8,400 to

9,519

9,520 to

10,199

5,459

Byte/track 192,000

Sector/track 375

6,459

184,320

360

7,929

168,960

330

8,399

163,840

320

174,080

340

153,600

300

143,872

281

C141-E064-03EN

3 - 3

(1)

User space

The user space is a storage area for user data. The data format on the user space (the length of

data block and the number of data blocks) can be specified with the MODE SELECT or

MODE SELECT EXTENDED command.

The default number of cylinders in the user space is 10,200 for MAF series, 12,000 for MAE

series and 9,866 for MAG series. The user, however, can select the number of cylinders to be

allocated in the user space by specifying 10,200 for MAF series, 9,866 for MAG series and

12,000 for MAE series as the maximum and the number of alternate cylinders + 1 as the

minimum. The user can also specify the number of logical data blocks to be placed in the user

space with the MODE SELECT or MODE SELECT EXTENDED command. When the

number of logical data blocks is specified, as many cylinders as required to place the specified

data blocks are allocated in the user space.

A number starting with 0 is assigned to each cylinder required in the user space in ascending

order. If the number does not reach 10,200 (MAF series) and 12,000 (MAE series) and 9,866

(MAG series) the rest of the cylinders will not be used.

Always one alternate cylinders can be established in the user space. Alternate cylinders will

be used for alternate blocks when primary cylinders in the user space are used up. See

Subsections 3.1.2 and 3.3.2 for details.

(2)

(3)

Internal test space

The Internal test space is an area for diagnostic purposes only and its data block length is

always 512KByte. The Internal test space consists of only 1 cylinder and outer-host cylinder

is always assigned. The user cannot change the number of cylinders in the Internal test space

or their positions.

System space

The system space is an area for exclusive use of the IDD itself and the following information

are recorded. The length of the data block is always 512 bytes.

Defect list (P list and G list)

MODE SELECT parameter (saved value)

Statistical information (log data)

Controller control information

The above information are duplicated in several different locations for safety.

Note:

The system space is also called SA space.

3 - 4

C141-E064-03EN

3.1.2

Alternate spare area

The alternate spare area is provided in the last track of each primary cylinder in the user space,

and in the last track of the cylinder and the alternate cylinder.

The spare area in each cylinder is placed at the end of the last track as shown in Figure 3.2.

These spare sectors are located in the end of the track logically, not necessarily located at the

end physically because of track skew or cylinder skew. (Details are explained on Subsection

3.1.3.)

Size can be specified by the MODE SELECT command.

The number of spare sectors per cylinder can be specified exceeding 32. The default value of

number of 9 space sectors per cylinder is 20.

Figure 3.2 Spare area in cylinders

An alternate cylinder is used when spare sectors in a cylinder are used up or 0 is specified as

the number of spare sectors in a cylinder. Several cylinders at the end of the user space are

allocated as alternate cylinders as shown in Figure 3.3.

The number of alternate cylinder is 1.

The user space and the CE space share the alternate cylinders.

Figure 3.3 Alternate cylinder

Note:

Zero cannot be specified for both the number of spare sectors in each cylinder and the

number of alternate cylinders.

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3 - 5

3.1.3

Track format

(1)

Physical sector allocation

Figure 3.4 shows the allocation of the physical sectors in a track. The length in bytes of each

physical sector and the number of sectors per track vary depending on the logical data block

length. The unused area (G4) exists at the end of the track in formats with most logical data

block lengths.

The interval of the sector pulse (length of the physical sector) is decided by multiple of

20MHz free running frequency. This clock is not equal to the interval of the byte clock for

each zone. Therefore, the physical sector length cannot be described with a byte length.

Figure 3.4 Track format

(2)

Track skew and cylinder skew

To avoid waiting for one turn involved in head and cylinder switching, the first logical data

block in each track is shifted by the number of sectors (track skew and cylinder skew)

corresponding to the switching time. Figure 3.5 shows how the data block is allocated in each

track.

At the head switching location in a cylinder, the first logical data block in track t + 1 is

allocated at the sector position which locates the track skew behind the sector position of the

last logical data block sector in track t.

At the cylinder switching location, like the head switching location, the first logical data block

in a cylinder is allocated at the sector position which locates the cylinder skew behind the last

logical sector position in the preceding cylinder. The last logical sector in the cylinder is

allocated when formatting, and is an unused spare sector.

3 - 6

C141-E064-03EN

Figure 3.5 Track skew/cylinder skew

The number of physical sectors (track skew factor and cylinder skew factor) corresponding to

the skew time varies depending on the logical data block length because the track skew and

the cylinder skew are managed for individual sectors. The IDD automatically determines

appropriate values for the track skew factor and the cylinder skew factor according to the

specified logical data block length. The value can be read out by the MODE SENSE or

MODE SENSE EXTENDED command after the track has been formatted.

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3 - 7

3.1.4

Sector format

Each sector on the track consists of an ID field, a data field, and a gap field which separates

them. Figure 3.6 gives sector format examples.

LC/LP models

SCT

SB LBA

DATA

BCRC ECC

SCT

PAD PAD

PLO

Sync

Servo

PAD PAD

SCT

SB LBA DATA 1

SB DATA 2 BCRC ECC

SCT

PAD PAD

PLO

Sync

PLO

Sync

MC/MP models

SCT

DATA

BCRC ECC

SCT

PAD PAD

PLO

Sync

Servo

PAD PAD

SCT

SB DATA 1

SB DATA 2 BCRC ECC

SCT

PAD PAD

PLO

Sync

PLO

Sync

MAE series

4 bytes

MAF/MAG series

4 bytes

PLO Sync

PAD 1

23 bytes

10 bytes

7 bytes

24 bytes

10 bytes

PAD 2

8 bytes

PAD 3

5 bytes

Figure 3.6 Sector format

Each sector on the track consists of the following fields:

Gaps (G1)

(1)

The gap length at the time of formatting (initializing) is listed in Figure 3.6. Pattern X'00' is

written on the gap field.

(2)

(3)

PLO Sync

In this field, pattern X'00' in the length in bytes listed in Figure 3.6 is written.

Sync Byte (SB)

In this field, special pattern in the length in bytes listed in Figure 3.6 is written.

3 - 8

C141-E064-03EN

(4)

(5)

LBA

The logical block address is written in this field, but it is not written with MP/MC models

because it is appended to BCRC field information.

Data field

User data is stored in the data field of the sector. The length of the data field is equal to that of

the logical data block which is specified with a parameter in the MODE SELECT command.

Any even number between 512 and 528 bytes can be specified as the length.

(6)

BCRC

It is a 2-byte error detection code. Errors in the ID field. Single burst errors with lengths of up

to 16 bits for each logical block can be detected.

The 4-byte error detection code appended the LBA field information is used with the MC/MP

models.

(7)

(8)

(9)

ECC

40-byte data error detection/correction code for the data field. It is possible to on-the-fly

correct the single burst errors with lengths of up to 160 bits.

PAD 1

A specified length of x‘00’ pattern shown in Figure 3.6 is written in this field. This field

includes the variation by rotation and circuit delay till reading/writing.

PAD 2/PAD 3

A specified length of x‘00’ pattern shown in Figure 3.6 is written in this field. This field

contains the processing time necessary to process next sector continuously. This field have

rotational speed variation.

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3 - 9

3.1.5

Format capacity

The size of the usable area for storing user data on the IDD (format capacity) varies according

to the logical data block or the size of the spare sector area. Table 3.4 lists examples of the

format capacity when the typical logical data block length and the default spare area are used.

The following is the general formula to calculate the format capacity.

[Number of sectors of each zone] = [number of sectors per track ´ number of tracks (heads) –

number of alternate spare sectors per cylinder] ´ [number of cylinders in the zone]

[Formatted capacity] = [total of sectors of all zones] – [number of sectors per track in last zone

´ number of tracks (heads) ´ number of alternate cylinders] ¸ [number of physical sectors in

logical block] ´ [logical data block length]

The following formula must be used when the number of logical data blocks are specified with

the parameter in the MODE SELECT or MODE SELECT EXTENDED command.

[Format capacity] = [logical data block length] ´ [number of logical data blocks]

The logical data block length, the maximum logical block address, and the number of the

logical data blocks can be read out by a READ CAPACITY, MODE SENSE, or MODE

SENSE EXTENDED command after initializing the disk medium.

Table 3.4

Format capacity

Model

Data heads Data block length User blocks

Format capacity (GB)

MAE3182 series

MAE3091 series

MAF3364 series

MAG3182 series

MAG3091 series

35,700,480

17,826,240

71,161,520

35,694,860

17,827,698

18.2

9.1

512

36.4

18.2

9.1

Note:

Total number of spare sectors is calculated by adding the number of spare sectors in each

primary cylinder and the number of sectors in the alternate cylinders.

3 - 10

C141-E064-03EN

3.2

Logical Data Block Addressing

Independently of the physical structure of the disk drive, the IDD adopts the logical data block

addressing as a data access method on the disk medium. The IDD relates a logical data block

address to each physical sector at formatting. Data on the disk medium is accessed in logical

data block units. The INIT specifies the data to be accessed using the logical data block

address of that data.

The logical data block addressing is a function whereby individual data blocks are given

addresses of serial binaries in each drive.

(1)

Block address of user space

The logical data block address number is consecutively assigned to all of the data blocks in the

user space starting with 0 to the first data block.

The IDD treats sector 0, track 0, cylinder 0 as the first logical data block. The data block is

allocated in ascending order of addresses in the following sequence (refer to Figure 3.5):

1) Numbers are assigned in ascending order to all sectors in the same track.

2) By following step 1), numbers are assigned in ascending order of tracks to all sectors in

each track in the same cylinder except the last track.

3) By following step 1), numbers are assigned to all sectors in the last track except the spare

sectors.

4) After completing steps 1) through 3) for the same cylinder, this allocation is repeated from

track 0 in the next cylinder and on to the last cylinder (cylinder p-q in Figure 3.1) except

for the alternate cylinders in ascending order of cylinder numbers.

When the logical data block is allocated, some sectors (track skew and cylinder skew) shown

in Figure 3.5 are provided to avoid waiting for one turn involving head and cylinder switching

at the location where the track or the cylinder is physically switched.

See Subsection 3.3.2 for defective/alternate block treatment and the logical data block

allocation method in case of defective sectors exist on the disk.

(2)

Alternate area

Alternate areas in the user space (spare sectors in the cylinder and alternate cylinders) are not

included in the above logical data block addresses. Access to sectors which are allocated as an

alternate block in the alternate area is made automatically by means of IDD sector slip

treatment or alternate block treatment (explained in Subsection 3.3.2), so the user does not

have to worry about accessing the alternate area. The user cannot access with specifying the

data block on the alternate area explicitly.

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3 - 11

3.3

Defect Management

Defect list

3.3.1

Information of the defect location on the disk is managed by the defect list. The following are

defect lists which the IDD manages.

P list (Primary defect list): This list consists of defect location information available at the

disk drive shipment and is recorded in a system space. The defects in this list are

permanent, so the INIT must execute the alternate block allocation using this list when

initializing the disk.

D list (Data defect list): This list consists of defect location information specified in a

FORMAT UNIT command by the INIT at the initialization of the disk. This information

is recorded in the system space of the disk drive as the G list. To execute the alternate

block allocation, the FORMAT UNIT command must be specified.

G list (Growth defect list): This list consists of defective logical data block location

information specified in a REASSIGN BLOCKS command by the INIT, information on

defective logical data blocks assigned alternate blocks by means of IDD automatic

alternate block allocation, information specified as the D list, and information generated as

the C list. They are recorded in the system space on the disk drive.

The INIT can read out the contents of the P and G lists by the READ DEFECT DATA command.

3.3.2

Alternate block allocation

The alternate data block is allocated to a defective data block (= sectors) in defective sector

units by means of the defect management method inside the IDD.

The INIT can access all logical data blocks in the user space, as long as there is no error.

Spare sectors to which alternate blocks are allocated can be provided in either "spare sectors in

a cylinder" or "alternate cylinders". See Subsection 3.1.2 for details.

The INIT can specify the size and area for spare sectors by the MODE SELECT command at

the time of the initialization of the disk.

Both of the following are applicable to the alternate block allocation.

Sector slip treatment: Defective sectors are skipped and the logical data block

corresponding to those sectors is allocated to the next physical sectors. This treatment is

made on the same cylinder as the defective sector's and is effective until all spare sectors in

that cylinder are used up.

Alternate sector treatment: The logical data block corresponding to defective sectors is

allocated to unused spare sectors in the same cylinder or unused spare sectors in the

alternate cylinder.

3 - 12

C141-E064-03EN

The alternate block allocation is executed by the FORMAT UNIT command, the REASSIGN

BLOCKS command, or the automatic alternate block allocation. Refer to OEM Manual–SCSI

Logical Specifications–for details of specifications on these commands. The logical data

block is allocated to the next physically continued sectors after the above sector slip treatment

is made. On the other hand, the logical data block is allocated to spare sectors which are not

physically consecutive to the adjacent logical data blocks. If a command which processes

several logical data blocks is specified, the IDD processes those blocks in ascending order of

logical data block.

(1)

Alternate block allocation during FORMAT UNIT command execution

When the FORMAT UNIT command is specified, the allocation of the alternate block to those

defective sectors included in the specified lists (P, G, or D) is continued until all spare sectors

in the same cylinder are used up. When they are used up, unused spare sectors in the alternate

cylinder are allocated to the subsequent sectors in the cylinder by means of alternate sector

treatment. Figure 3.7 is examples of the alternate block allocation during the FORMAT UNIT

command execution.

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3 - 13

: n represents a logical data block number

: Defective sector

: Unused spare sector

Figure 3.7 Alternate block allocation by FORMAT UNIT command

If the data block verifying operation (certification) is not permitted (DCRT flag = 0) in the

FORMAT UNIT command, the IDD checks all initialized logical data blocks by reading them

out after the above alternate block allocation is made to initialize (format) the disk. If a

defective data block is detected during the check, the IDD allocates the alternate block to the

defective data block. This alternate block allocation is made by means of alternate sector

treatment only like processing by the REASSIGN BLOCKS command even if unused spare

sectors exists in the same cylinder.

3 - 14

C141-E064-03EN

(2)

Alternate block allocation by REASSIGN BLOCKS command

When the REASSIGN BLOCKS command is specified, the alternate block is allocated to the

defective logical data block specified by the initiator by means of alternate sector treatment. If

there are unused spare sectors in the same cylinder as the specified defective logical data

block, the alternate block is allocated to these unused spare sectors. However, the alternate

block is allocated to unused spare sectors in the alternate cylinder when all spare sectors in the

cylinder are used up.

Figure 3.8 is examples of the alternate block allocation by the REASSIGN BLOCKS

command.

: n represents a logical data block number

: Defective sector

: Unused spare sector

Figure 3.8 Alternate block allocation by REASSIGN BLOCKS command

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3 - 15

(3)

Automatic alternate block allocation

If the ARRE flag in the MODE SELECT parameter permits the automatic alternate block

allocation, the IDD automatically executes the alternate block allocation and data duplication

on the defective data block detected during the READ EXTENDED command. This

allocation method is the same as with the REASSIGN BLOCKS command (alternate sector

treatment).

IMPORTANT

Automatic alternate block allocation is made only once during the

execution of one command. If second defective block is detected,

the alternate block assignment processing for the first defective

block is executed but the alternate block assignment processing

for the second one is not executed and the command being

executed terminates. However, the initiator can recover the twice

error by issuing the same command again.

When an error is detected in a data block in the data area,

recovery data is rewritten and verified in automatic alternate

block allocation during the execution of the READ or READ

EXTENDED command. Alternate block allocation will not be

made for the data block if recovery is successful.

Example: Even if the data error which is recoverable by the

WRITE LONG command is simulated, automatic

alternate block allocation will not be made for the data

block.

3 - 16

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CHAPTER 4

INSTALLATION REQUIREMENTS

4.1 Mounting Requirements

4.2 Power Supply Requirements

4.3 Connection Requirements

This chapter describes the environmental, mounting, power supply, and connection requirements.

4.1

Mounting Requirements

External dimensions

4.1.1

Figures 4.1 to 4.6 show the external dimensions of the IDD and the positions of the holes for

the IDD mounting screws.

Note:

Dimensions are in mm.

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4 - 1

Figure 4.1 External dimensions (MAF series LC/MC)

4 - 2

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Figure 4.2 External dimensions (MAF series LP/MP)

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4 - 3

Figure 4.3 External dimensions (MAE series LC)

4 - 4

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Figure 4.4 External dimensions (MAE series LP)

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4 - 5

Figure 4.5 External dimensions (MAG series LC/MC)

4 - 6

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Figure 4.6 External dimensions (MAG series LP/MP)

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4 - 7

4.1.2

Mounting

The permissible directions of the IDD are shown in Figure 4.7, and the tolerance of the angle

is ±5° from the horizontal plane.

(a) Horizontal –1

(b) Horizontal –2

Direction of

gravity

(d) Vertical –2

(e) Upright mounting –1

(f) Upright mounting –2

Figure 4.7 IDD directions

4.1.3

Notes on mounting

(1)

Mounting frame structure

Special attention must be given to mount the IDD disk enclosure (DE) as follows.

a) Use the frame with an embossed structure, or the like. Mount the IDD with making a

gap of 2.5 mm or more between the IDD and the frame of the system.

b) As shown in Figure 4.8, the inward projection of the screw from the IDD frame wall

at the corner must be 4 mm or less.

c) Tightening torque of screw must be secured with 6kg-cm.

d) Impact caused by the electric driver must be within the device specifications.

e) Must be handled on an anti-static mat.

4 - 8

C141-E064-03EN

Figure 4.8 Mounting frame structure

(2)

Limitation of side-mounting

Mount the side using the screw holes at both the ends as shown in Figure 4.9. Do not use the

center hole.

Holes for

mounting screw.

Do not use these holes

Holes for mounting screw.

Use four holes (No.1-4) to mount.

Figure 4.9 Limitation of side-mounting

C141-E064-03EN

4 - 9

(3)

Environmental temperature

Temperature condition at installed in a cabinet is indicated with ambient temperature measured

3 cm from the disk drive. At designing the system cabinet, consider following points.

Make a suitable air flow so that the DE surface temperature does not exceed 55°C.

CAUTION

Heat

An air flow with an adequate wind velocity must be maintained to

deal with much heat generated from the MAF3364xx.

Reference value: An air flow with a wind velocity of more than

0.5 m/s is required in an environment at 40°C,

and an air flow with a wind velocity of more

than 1.0m/s in an environment at 45°C (Center

of DE cover 55°C).

Cool the PCA side especially with air circulation inside the cabinet. Confirm the cooling

effect by measuring temperature of specific ICs and the DE. These measurement results

should be within a criteria listed in Table 4.1.

Table 4.1

Surface temperature check point

No.

Measurement point

Center of DE cover

Criteria

55°C

83°C

75°C

85°C

Read channel LSI

VCM/SPM Driver

HDC

15/16

CN2

1/2

CN1

Figure 4.10 Surface temperature measurement points (MAF series, MAE series, MAG series)

4 - 10

C141-E064-03EN

(4)

Service clearance area

The service clearance area, or the sides which must allow access to the IDD for installation or

maintenance, is shown in Figures 4.11.

[Surface P’]

• Setting terminal

• External operator panel connector

• Spindle sync connector

[Surface R]

• Hole for mounting screw

[Surface P]

• Cable connection

[Surface Q]

• Hole for mounting screw

Figure 4.11 Service clearance area

(5)

(6)

External magnetic field

The drive should not be installed near the ferromagnetic body like a speaker to avoid the

influence of the external magnetic field.

Leak magnetic flux

The IDD uses a high performance magnet to achieve a high speed seek. Therefore, a leak

magnetic flux at surface of the IDD is large. Mount the IDD so that the leak magnetic flux

does not affect to near equipment.

(7)

Others

A hole or screw portion as shown in Figure 4.12 is used for adjusting air pressure balance

between inside and outside the DE. Do not fill with a seal or label.

Seals on the DE prevent the DE inside from the dust. Do not damage or peel off labels.

C141-E064-03EN

4 - 11

MAF series

Air pressure adjustment hole

MAG series

Air pressure adjustment hole

MAE series

Air pressure adjustment hole

Figure 4.12 Air pressure adjustment hole

4 - 12

C141-E064-03EN

4.2

Power Supply Requirements

(1)

Allowable input voltage and current

The power supply input voltage measured at the power supply connector pin of the IDD

(receiving end) must satisfy the requirement given in Subsection 2.1.3. (For other

requirements, see Items (4) and (5) below.)

(2)

Current waveform (reference)

Figure 4.13 shows the waveform of +12 VDC.

MAE series

MAF series

MAG series

Figure 4.13 Current waveform (+12 VDC)

(3)

Power on/off sequence

a) The order of the power on/off sequence of +5 VDC and +12 VDC, supplied to the IDD,

does not matter.

b) In a system which uses the terminating resistor power supply signal (TERMPWR) on the

SCSI bus, the requirements for +5 VDC given in Figure 4.14 must be satisfied between the

IDD and at least one of the SCSI devices supplying power to that signal.

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4 - 13

Figure 4.14 Power on/off sequence (1)

c) In a system which does not use the terminating resistor power supply signal (TERMPWR)

on the SCSI bus, the requirements for +5 VDC given in Figure 4.15 must be satisfied

between the IDD and the SCSI device with the terminating resistor circuit.

SCSI devices with

the terminating

resistor

Figure 4.15 Power on/off sequence (2)

d) Between the IDD and other SCSI devices on the SCSI bus, the +5 VDC power on/off

sequence is as follows:

In a system with its all SCSI devices designed to prevent noise from leaking to the

SCSI bus when power is turned on or off, the power sequence does not matter if the

requirement in b) or c) is satisfied.

In a system containing an SCSI device which is not designed to prevent noise from

leaking to the SCSI bus, the requirement given in Figure 4.16 must be satisfied

between that SCSI device and the IDD.

SCSI devices

without noise

leaking designed

Figure 4.16 Power on/off sequence (3)

4 - 14

C141-E064-03EN

(4)

Sequential starting of spindle motors

After power is turned on to the IDD, a large amount of current flows in the +12 VDC line

when the spindle motor rotation starts. Therefore, if more than one IDD is used, the spindle

motors should be started sequentially using one of the following procedures to prevent

overload of the power supply unit. For how to set a spindle motor start control mode, see

Subsection 5.3.2.

a) Issue START/STOP commands at more than 12-second intervals to start the spindle

motors. For details of this command specification, refer to SCSI Logical Interface

Specifications.

b) Turn on the +12 VDC power in the power supply unit at more than 12-second intervals to

start the spindle motors sequentially.

(5)

Power supply to SCSI terminating resistor

If power for the terminating resistor is supplied from the IDD to other SCSI devices through

the SCSI bus, the current-carrying capacity of the +5 VDC power supply line to the IDD must

be designed with considering of an increase of up to 200 mA.

A method of power supply to the terminating resistor is selected with a setting terminal on the

IDD. See Subsection 5.3.2 for this selection.

For the electrical condition of supplying power to the terminating resistor, refer to Subsection

1.4.2 in SCSI Physical Interface Specifications.

(6)

Noise filter

To eliminate AC line noise, a noise filter should be installed at the AC input terminal on the

IDD power supply unit. The specification of this noise filter is as follows:

Attenuation: 40 dB or more at 10 MHz

Circuit construction: T-configuration as shown in Figure 4.17 is recommended.

Figure 4.17 AC noise filter (recommended)

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4 - 15

4.3

Connection Requirements

68 pin connector 16-bit SCSI model (LP/MP)

Connectors

4.3.1

(1)

Figures 4.18 show the locations of connectors and terminals on the 68 pin connector type 16-

bit SCSI (LP/MP) model.

Power supply connector

SCSI connector

External operator panel connector

External operator panel

connector (CN2)

Power supply

connector

(CN1)

External operator

panel connector

(CN1)

SCSI connector

(CN1)

Figure 4.18 Connectors and terminals location (LP/MP)

4 - 16

C141-E064-03EN

(2)

SCSI connector and power supply connector

a. 16-bit SCSI

The connector for the SCSI bus is an unshielded P connector conforming to SCSI-3 type

which has two 34-pin rows spaced 1.27 mm (0.05 inch) apart. Figure 4.19 shows the SCSI

connector. See Section C.2 in Appendix C for the signal assignments on the SCSI

connector.

For details on the physical/electrical requirements of the interface signals, refer to Sections

1.3 and 1.4 in the SCSI Physical Interface Specifications.

The tolerance is ±0.127 mm (0.005 inch) unless otherwise

Figure 4.19 16-bit SCSI interface connector

b. Power supply connector

Figure 4.20 shows the shape and the terminal arrangement of the output connector of DC

power supply.

Figure 4.20 Power supply connector (16-bit SCSI model)

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4 - 17

(3)

(4)

SG terminal

The IDD is not provided with an SG terminal (fasten tab) for DC grounding. Therefore, when

connecting SG and FG in the system, use the +5 VDC RETURN (ground) inside the power

supply connector as the SG on the power supply side.

Connector for external operator panel

Connector for 16-bit SCSI external operator panel

CN1 provides connector for the external operator panel other than the SCSI bus as shown

in Figure 4.21. Also, a connector for the external operator panel are provided on the IDD

as shown in Figure 4.22. This allows connection of an external LED on the front panel,

and an SCSI ID setting switch. For the recommended circuit of the external operator

panel, see Subsection 4.3.4.

Signal

–ID0

–Fault LED

–ID1

(Reserved)

–ID2

(Reserved)

–ID3

–LED

OPEN

A10

A11

A12

GND

+5 V

–WTP

Figure 4.21 External operator panel connector (CN1)

4 - 18

C141-E064-03EN

Figure 4.22 External operator panel connector (CN2)

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4 - 19

(5)

External operator panel connector Signals

a. 16-bit SCSI –ID3, –ID2, –ID1, –ID0: Input signals (CN1-A1, A3, A5, A7 pin and CN2-

02, 04, 06, 08 pin)

These signals are used for providing switches to set the SCSI ID of the IDD externally.

Figure 4.23 shows the electrical requirements. For the recommended circuit examples, see

Subsection 4.3.4.

Figure 4.23 16-bit SCSI ID external input

4 - 20

C141-E064-03EN

b. –Fault LED: Output signal (CN1-A2 pin)

The IDD indicates that the write-protect status is in effect (CN1-A12 is connected to the GND,

or the CN2-9 and CN2-10 are short-circuited.) A signal for driving the LED is output.

(IDD)

74LS06 or equivalent

150 W

NC1-A2

IMPORTANT

This signal is temporarily driven at the GND level when the micro

program reads the SCSI ID immediately after the power supply to

the IDD has been switched on (it is possible to set up the SCSI ID

by short circuiting CN1-A1 and CN1-A2.)

c. CN1-A4, CN1-A6 (reserved)

These pins are temporarily driven at the GND level when the micro program reads the SCSI ID

immediately after the power supply to the IDD has been switched on (it is possible to set up the

SCSI ID by short circuiting CN1-A3 and CN1-A4, and CN1-A5 and CN1-A6.)

These pins get high impedance status except above.

d. –LED and LED (V): Output signals (CN1-A8 pin and CN2-21, 22 pin)

These signals actuate the external LED as same as LED on the front panel of the disk

drive. The electrical requirements are given in Figure 4.24.

IMPORTANT

1. The external LED is identical in indication to the LED on the front of

the IDD. The meaning of indication can be selected with the

CHANGE DEFINITION command. For details of command, refer to

SCSI Logical Interface Specifications.

2. Any load other than the external LED (see Subsection 4.3.5) should

not be connected to the LED (V) and –LED terminals.

3. This signal is temporarily driven at the GND level when the micro

program reads the SCSI ID immediately after the power supply to the

IDD has been switched on (it is possible to set up the SCSI ID by

short circuiting CN1-A7 and CN1-A8.)

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4 - 21

Figure 4.24 Output signal for external LED

e. –WTP: Input signal (CN1-A12 and CN2-9, 10 pin)

By connecting the CN1-A12 and CN2-10 pins to the GND, writing operations into the

IDD disc media are set to disable.

4 - 22

C141-E064-03EN

(6)

Cable connection requirements

The requirements for cable connection between the IDD, host system, and power supply unit

are given in Figure 4.25. Recommended components for connection are listed in Table 4.1.

External operator panel

(example)

Figure 4.25 SCSI cables connection

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4 - 23

4.3.2

SCA2 type SCSI model (LC/MC)

(1)

Connectors

Figure 4.26 shows the locations of connectors and terminals on the SCA2 type SCSI model.

SCSI connector (including power supply connector)

SCSI connector

Figure 4.26 Connectors and terminals location of SCA2 type SCSI model

4 - 24

C141-E064-03EN

(2)

SCSI connector and power supply connector

a. SCA type SCSI

The connector for the SCSI bus is an unshielded SCA-2 connector conforming to SCSI-3

type which has two 40-pin rows spaced 1.27 mm (0.05 inch) apart. Figure 4.27 shows the

SCSI connector. See Section C.5 in Appendix C for signal assignments on the connector.

For details on the physical/electrical requirements of the interface signals, refer to Sections

1.3 and 1.4 in SCSI Physical Interface Specifications.

Figure 4.27 SCA2 type SCSI connector

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4 - 25

(3)

Connector for external operator panel

Connector external operator panel

A connector for the external operator panel are provided on the IDD as shown in Figure

4.28. This allows to place externally LED on the front panel, or an SCSI ID setting switch.

Figure 4.28 External operator panel connector (CN2)

4 - 26

C141-E064-03EN

(4)

External operator panel connector Signals

a. 16-bit SCSI –ID3, –ID2, –ID1, –ID0: Input signals (CN-2-02, 04, 06, 08 pin)

These signals are used for providing switches to set the SCSI ID of the IDD externally.

Figure 4.29 shows the electrical requirements.

(IDD)

CN2-08

CN2-06

CN2-04

CN2-02

Figure 4.29 16-bit SCSI ID external input

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4 - 27

b. –WTP: Input signal (CN2-9, 10 pin)

By connecting the CN2-10 pins to the GND, writing operations into the IDD disc media

are set to disable.

4.3.3

Cable connector requirements

Table 4.2 lists the recommended components cable connection.

Table 4.2

Recommended components for connection

Reference

(Figures 4.25

and 4.30)

Applicable

model

Name

Par number

Manufacturer

AMP

LP/MP

SCSI cable (CN1) Cable socket

(closed-end type)

786090-7

—

Signal cable

—

Power supply cable Cable socket

1-480424-0

AMP

(CN1)

housing

Contact

Cable

60619-4

60617-4

External operator

panel (CN1)

Cable socket

housing

FCN-723J012/2M

Fujitsu Limited

Contact

Cable

FCN-723J-G/AM

AWG26 to 34

External operator

panel (CN2)

Cable socket

housing

FCN-723J016/2M

Fujitsu Limited

Contact

Cable

FCN-723J-G/AM

AWG28

LC/MC

SCSI connector

(CN1)

Connector

787311-1

AMP

(1)

SCSI cable

See Section 1.3, “Physical Requirements”, and Section 1.4, “Electrical Requirements”, in

SCSI Physical Interface Specifications.

(2)

(3)

Power cable

IDDs must be star-connected to the DC power supply (one to one connection) to reduce the

influence of load variations.

DC ground

The DC ground cable must always be connected to the IDD because no fasten terminal

dedicated to SG is provided with the IDD. Therefore, when SG and FG are connected in the

system, it is necessary to connect SG and FG at the power supply or to connect SG of the

power supply to FG of the system.

4 - 28

C141-E064-03EN

(4)

External operator panel

The external operator panel is installed only when required for the system. When connection

is not required, leave open the following pins in the external operator panel connector of the

IDD : Pins 21, 22 and pins 01 through 08 in CN2 and pins A1 through A12 in CN1.

4.3.4

External operator panel

A recommended circuit of the external operator panel is shown in Figure 4.30. Since the

external operator panel is not provided as an option, this panel must be fabricated at the user

site referring to the recommendation if necessary.

Figure 4.30 External operator panel circuit example (LP/MP)

IMPORTANT

Do not connect the external LED to both CN1 and CN2. Connect

it to either of them.

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4 - 29

This page is intentionally left blank.

CHAPTER 5

INSTALLATION

5.1 Notes on Handling Drives

5.2 Connections

5.3 Setting Terminals

5.4 Mounting Drives

5.5 Connecting Cables

5.6 Confirming Operations after Installation and Preparation

for Use

5.7 Dismounting Drives

This chapter describes the notes on handling drives, connections, setting switches and plugs, mounting

drives, connecting cables, confirming drive operations after installation and preparation for use, and

dismounting drives.

5.1

Notes on Handling Drives

The items listed in the specifications in Table 2.1 must be strictly observed.

(1)

General notes

a) Do not give the drive shocks or vibrations exceeding the value defined in the standard

because it may cause critical damage to the drive. Especially be careful when unpacking.

b) Do not leave the drive in a dirty or contaminated environment.

c) Since static discharge may destroy the CMOS semiconductors in the drive, note the

following after unpacking:

Use an antistatic mat and body grounding when handling the drive.

Hold the DE when handling the drive. Do not touch PCAs except for setting.

(2)

Unpackaging

a) Use a flat work area. Check that the "This Side Up" sign side is up. Handle the package

on soft material such as a rubber mat, not on hard material such as a desk.

b) Be careful not to give excess pressure to the internal unit when removing cushions.

C141-E064-03EN

5 - 1

c) Be careful not to give excess pressure to the PCAs and interface connector when removing

the drive from the antistatic bag.

d) Do not remove the sealing label or cover of the DE and screws.

Installation

(3)

a) Do not attempt to connect or disconnect connections when power is on. The only pin

settings that may be altered are pins 9, 10 (Write Protect) in CN2.

b) Do not move the drive when power is turned on or until the drive completely stops (for 30

seconds) after power is turned off.

(4)

Packaging

a) Store the drive in an antistatic vinyl bag with a desiccant (silica gel).

b) It is recommended to use the same cushions and packages as those at delivery. If those at

delivery cannot be used, use a package with shock absorption so that the drive is free from

direct shocks. In this case, fully protect the PCAs and interface connector so that they are

not damaged.

c) Indicate "This Side Up" and "Handle With Care" on the outside of the package so that it is

not turned over.

(5)

Delivery

a) When delivering the drive, provide packaging and do not turn it over.

b) Minimize the delivery distance after unpacking and avoid shocks and vibrations with

cushions. For the carrying direction at delivery, use one of the mount allowable directions

in Subsection 4.2.2 (vertical direction is recommended).

(6)

Storage

a) Provide vaporproof packaging for storage.

b) The storage environment must satisfy the requirements specified in Subsection 2.1.3 when

the drive is not operating.

c) To prevent condensation, avoid sudden changes in temperature.

5 - 2

C141-E035-01EN

5.2

Connections

Figure 5.1 shows examples of connection modes between the host system and the IDD. For

the 16-bit SCSI, up to 16 devices including the host adapter, IDD, and other SCSI devices can

be connected to the SCSI bus in arbitrary combinations. Install a terminating resistor on the

SCSI device connected to both ends of the SCSI cable.

See Section 4.4 for the cable connection requirements and power cable connections.

Connecting one IDD

(1)

(2)

Connecting more than one IDD (single host)

Figure 5.1 SCSI bus connections (1 of 2)

C141-E064-03EN

5 - 3

(3)

Connecting more than one IDD (multi-host)

Figure 5.1 SCSI bus connections (2 of 2)

5 - 4

C141-E064-03EN

5.3

Setting Terminals

The user must set the following terminals and SCSI terminating resistor before installing the

IDD in the system.

Setting terminal:

CN2

Figures 5.2 shows the setting terminal position. Figures 5.3 shows the allocation and default

settings.

CAUTION

Data loss

1. The user must not change the setting of terminals not described in this

section. Do not change setting status set at factory shipment.

2. Do not change the setting of terminals except following setting pins

during the power is turned on.

Write protect: CN2 9-10

3. To short the setting terminal, use the short plug attached when the

device is shipped from the factory.

CN1

CN2

1 pin

Figure 5.2 IDD setting terminals position

C141-E064-03EN

5 - 5

LP/MP

10 12 14 16 18 20 22 24

11 13 15 17 19 21 23

Terminal power supply: Supply

(LED signal)

(IDD Reset signal)

N.C.

Force Single Ended: LVD mode

Force Narrow: 16bit-SCSI

Spin-up mode

Write protect: enabled

SCSI ID #15 (LP/MP)

# 0 (LC/MC)

10 12 14 16

11 13 15

LC/MC

Figure 5.3 Setting terminals (CN2)

5.3.1

SCSI ID setting

Table 5.1 shows the SCSI ID setting. Refer to Figures 5.2 and 5.3 for connector positioning

and allocation.

IMPORTANT

When the SCSI ID is set using the external operator panel

connector CN1, all pins listed in Table 5.1 should be open. If any

of pins are shorted, unexpected SCSI ID is set.

5 - 6

C141-E064-03EN

Table 5.1

SCSI ID

SCSI ID setting (CN2)

CN2

7-8

5-6

3-4

1-2

Open

Short

Open

Short

Open

Short

Open

Short

Open

Short

Open

Short

Open

Short

Open

Short

Open

Short

Open

Short

Open

Short

Open

Short

Open

Short

Open

Short

Open

Short

15 (*1)

*1 Set at factory shipment

IMPORTANT

1. Set the SCSI ID so that there are no duplicates between SCSI devices

on the same SCSI bus.

2. The priority of SCSI bus use in ARBITRATION phase is determined by

SCSI ID as follows:

7 > 6 > 5 > 4 > 3 > 2 > 1 > 0 > 15 > 14 > 13 > 12 > 11 > 10 > 9 > 8

5.3.2

Each mode setting

(1)

Setting terminal power supply

Refer to Table 5.2 for controlling the supply of power from the drive to the SCSI terminal resistance

power source (TERMPOW). However, this setting may not be used with SCA2 type 16 bit-SCSI

(LC/MC). For information on LP/MP, refer to Figures 5.2 and 5.3.

Table 5.2

Setting SCSI terminal power supply (LP/MP)

Supply on/off of SCSI terminating resistor power from IDD

Supply off

CN2 23-24

Open

Supply on

Short (*1)

*1 Setting at factory shipment

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5 - 7

(2)

Motor start mode

Set how to control the starting of the IDD spindle motor according to Table 5.3. This setting

only determines the operation mode when the power supply is turned on or the microcode is

downloaded. In both modes, stopping or restarting the spindle motor can be controlled by

specifying the START/STOP UNIT command.

Table 5.3

Motor start mode setting

CN2 11-12

(LP/MP)

CN2 11-12

(LC/MC)

Start timing of the spindle motor

Starting of the motor is controlled with the START/STOP

UNIT command.

Open

Short

The motor is started immediately after the power supply is

turned on or the microcode is downloaded.

Short (*1)

Open (*1)

*1 Setting at factory shipment

Refer to Chapter 3 of the SCSI Logical Interface Specifications for details of the

START/STOP UNIT command.

(3)

Write protect

When the write protect function is enabled, writing to the disk medium is disabled.

Table 5.4

Write protect setting (CN2)

Write protect

CN2 9-10

Open (*1)

Short

Write operation is enabled.

Write operation is disable.

*1 Setting at factory shipment

(4)

Setting of the SCSI interface operation mode

By establishing a short-circuit between the 15 and 16 CN2 setting terminals, the SCSI

interface operation mode is forcibly set to the single-ended mode. When this setup terminal is

open, the IDD automatically identifies the DIFFSNS signal level on the SCSI bus and the IDD

SCSI interface operation mode is set to the operation mode.

5 - 8

C141-E064-03EN

Table 5.5

Setting of the SCSI interface operation mode (CN2)

Operation mode

CN2 15-16

Open *

Short

Follows the DIFFSNS signal level on the SCSI bus

Single-Ended mode

* Set at factory shipment

(5)

Setting the bus width of the SCSI interface (CN2)

By establishing a short-circuit between the 13 and 14 CN2 setting terminals, the bus width for

the SCSI interface is forcibly set to the 8-bit bus mode. This setup terminal must be set in

order to guarantee the physical level of the SCSI interface’s upper bus (DB8-15, P1) inside the

IDD only when the top-level bus (DB8-15, P1) for the IDD SCSI interface is not connected to

the external part of the IDD.

Table 5.6

Setting the bus width of the SCSI interface (CN2)

Bus width

16 bit bus

8 bit bus

CN2 13-14

Open *

Short

* Set at factory shipment

5.3.3

Mode settings

In addition to the previously described settings using setting terminals, the IDD is provided with

several mode settings. The mode settings are enabled by specifying the CHANGE DEFINITION

command. Table 5.7 lists the mode settings and their settings at factory shipment.

Refer to Section 3.1.4 of the SCSI Logical Interface Specifications for details of the command.

Table 5.7

Default mode settings (by CHANGE DEFINITION command)

Mode setting

Contents

SCSI-2

SCSI level

SYNCHRONOUS DATA TRANSFER REQUEST message sending

UNIT ATTENTION report mode

Sent from IDD

Reported

Reselection retry count

Not restricted

Sent from IDD

250 ms

WIDE DATA TRANSFER REQUEST message sending

Reselection time-out delay

Spindle motor start delay time

0 sec (LP/MP)

12 sec × SCSI ID (LC/MC)

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5 - 9

5.4

Mounting Drives

5.4.1

Check before mounting

Reconfirm if the setting terminals are set correctly according to Table 5.8 before mounting the

drive in the system cabinet. For setting terminals location, see Section 5.3.

Table 5.8

Setting check list

Setting contents

(Check item)

Setting

position

Setting

terminal

CN2

No.

Check

Remarks

SCSI ID

CN2

7 - 8

5 - 6

3 - 4

1 - 2

(SCSI ID = __)

Upper bus

(DB 8 to 15

PI)

not connected

Write protect

CN2 9 - 10

CN2 11 - 12

CN2 13 - 14

CN2 15 - 16

CN2 23 - 24

Short

Open

Motor start mode

Force Narrow

Open

Force single ended

Terminal power supply

Open LP/MP models

5.4.2

Mounting procedures

Since mounting the drive depends on the system cabinet structure, determine the work

procedures considering the requirements specific to each system. The general mounting

method and items to be checked are shown below.

See Subsection 4.2 for the details of requirements for installing the IDD.

1) With a system to which an external operator panel is mounted, if it is difficult to access the

connector after the drive is mounted on the system cabinet, connect the external operator

panel cable before mounting the drive.

2) Fix the drive in the system cabinet with four mounting screws as follows:

The drive has 10 mounting holes (both sides: 3 ´ 2, bottom: 4). Fix the drive by

using four mounting holes of both sides or the bottom. (See Figure 4.9)

Use mounting screws whose lengths inside the drive mounting frame are 4 mm or less

when the screws are tightened (see Figure 4.8).

When mounting the drive, be careful not to damage parts on the PCAs.

3) Check to ensure that the DE is not touching the frame on the system side after tightening

the screws. At least 2.5mm of clearance is required between the DE and the frame.

(Indicated in Figure 4.8)

4) When an electric driver is in use, less than low-impact device specifications must be used.

5 - 10

C141-E064-03EN

5.5

Connecting Cables

Connect the IDD and system with the following cables. See Section 4.4 for further details of

the requirements for IDD connector positions and connecting cables.

Power cable

SCSI cable

External operator panel cable (if required)

The general procedures and notes on connecting cables are described below. Especially, pay

attention to the inserting direction of each cable connector.

CAUTION

Damage

1. Check that system power is off before connecting or disconnecting

cables.

2. Do not connect or disconnect cables when power is on.

a) Connect power cable.

b) Connect the external operator panel (if required for system).

c) Connect the SCSI cable.

d) Fix the cables so that they do not touch the DE and PCAs, or so that the smooth flow of

the cooling air in the system cabinet is assured.

CAUTION

Damage

1. Be careful of the insertion directions of the SCSI connectors. With the

system in which terminating resistor power is supplied via the SCSI

cable, if the power is turned on, the overcurrent protection fuse of the

terminating resistor power supplier may be blown or the cable may be

burnt if overcurrent protection is not provided.

When the recommended parts listed in Table 4.2 are used, inserting

the cables in the wrong direction can be prevented.

2. To connect SCSI devices, be careful of the connection position of the

cable. Check that the SCSI device with the terminating resistor is the

last device connected to the cable.

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5 - 11

5.6

Confirming Operations after Installation and Preparation for use

Confirming initial operations

5.6.1

This section describes the operation check procedures after power is turned on. Since the

initial operation of the IDD depends on the setting of the motor start mode, check the initial

operation by either of the following procedures.

(1)

Initial operation in the case of setting so that motor starts at powering-on

a) When power is turned on, the LED blinks an instant and the IDD executes initial self-

diagnosis.

b) If an error is detected in the initial self-diagnosis, the LED blinks periodically.

Remark:

The spindle motor may or may not start rotating in this stage.

c) When the IDD status is idle, the LED remains off (when the initiator accesses the IDD via

the SCSI bus, the LED lights).

(2)

Initial operation in the case of setting so that motor starts with START/STOP command

a) When power is turned on, the LED blinks an instant and the IDD executes initial self-

diagnosis.

b) If an error is detected in the initial self-diagnosis, the LED blinks.

c) The spindle motor does not start rotating until the START/STOP UNIT command for the

start is issued. The INIT needs to issue the START/STOP UNIT command to start the

spindle motor by the procedure in Subsection 5.6.2.

d) The disk drive enters the READY status in 60 seconds after the START/STOP UNIT

command is issued. At this time, the IDD reads "system information" from the system

space on the disk.

e) The LED blinks during command execution.

(3)

Check items at illegal operation

a) Check that cables are mounted correctly.

b) Check that power and voltages are supplied correctly (measure them with the IDD power

connection position).

c) Check the setting of each setting terminal. Note that the initial operation depends on the

setting of the motor start mode and LED display requirements.

5 - 12

C141-E064-03EN

d) If an error is detected in initial self-diagnosis the LED blinks. In this case, it is

recommended to issue the REQUEST SENSE command from the initiator (host system) to

obtain information (sense data) for error analysis.

IMPORTANT

The LED lights during the IDD is executing a command.

However, in same commands, the lighting time is only an instant.

Therefore, it seems that the LED blinks or the LED remains off.

5.6.2

Checking SCSI connection

When the initial operation is checked normally after power is turned on, check that the IDD is

connected to the SCSI bus from the host system. Although checking the connection depends

on the structure of the host system, this section describes the general procedures.

(1)

Checking procedure

Issuing the commands and determining the end status depends on the start mode of the spindle

motor and UNIT ATTENTION report mode (specified with setting terminal). Figure 5.4

shows the recommended checking procedure for the mode that the motor starts when power is

turned on. Figure 5.5 shows for the mode that the motor starts by the START/STOP

command. In these recommended checking procedures, following items are checked.

Note:

Following steps a) to e) correspond to a) to e) in Figures 5.4 and 5.5.

a) Issue the TEST UNIT READY command and check that the IDD is connected

correctly to the SCSI bus and the initial operation after power is turned on ended

normally. The command issue period of the TEST UNIT READY command shall be

more than 20 ms.

To control starting of the spindle motor from the host system, issue the

START/STOP UNIT command to start the spindle motor.

c) Check the SCSI bus operations with the WRITE BUFFER and READ BUFFER

commands. Use data whose data bus bits change to 0 or 1 at least once. (Example:

Data with an increment pattern of X'00' to X'FF')

d) Start the IDD self-diagnostic test with the SEND DIAGNOSTIC command and check

the basic operations of the controller and disk drive.

C141-E064-03EN

5 - 13

Motor starts when power is turned on

(60

Figure 5.4 Checking the SCSI connection (A)

5 - 14

C141-E064-03EN

Motor starts by START/STOP command

* Executing time: about 60 seconds

Figure 5.5 Checking the SCSI connection (B)

C141-E064-03EN

5 - 15

(2)

Checking at abnormal end

a) When sense data can be obtained with the REQUEST SENSE command, analyze the sense

data and retry recovery for a recoverable error. Refer to Chapter 4 of SCSI Logical

Interface Specifications for further details.

b) Check the following items for the SCSI cable connection:

All connectors including other SCSI devices are connected correctly.

The terminating resistor is mounted on both ends of the cable.

Power is connected to the terminating resistor.

c) Check the setting of the terminals. Note that the checking procedure of SCSI connection

differs depending on the setting of the motor start mode and UNIT ATTENTION report

mode.

5.6.3

Formatting

Since the disk drive is formatted with a specific (default) data format for each model (part

number) when shipped from the factory, the disk need not be formatted (initialized) when it is

installed in the system.

However, when the system needs data attributes different from the default format, all sides of

the disk must be formatted (initialized) according to the procedures below.

The user can change the following data attributes at initialization:

Logical data block length

Number of logical data blocks or number of cylinders in the user space

Alternate spare area size

This section outlines the formatting at installation. Refer to Chapters 3 and 5 of SCSI Logical

Interface Specifications for further details.

(1)

MODE SELECT/MODE SELECT EXTENDED command

Specify the format attributes on the disk with the MODE SELECT or MODE SELECT

EXTENDED command. The parameters are as follows.

a. Block descriptor

Specify the size (byte length) of the logical data block in the "data block length" field. To

explicitly specify the number of logical data blocks, specify the number in the "number of

data blocks" field. Otherwise, specify 0 in "number of data blocks" field. In this case, the

number of logical data blocks after initialization is determined by the value specified in the

format parameter (page code = 3) and drive parameter (page code = 4).

5 - 16

C141-E064-01EN

b. Format parameter (page code = 3)

Specify the number of spare sectors for each cylinder in the "alternate sectors/zone" field

and specify the number of tracks for alternate cylinders (= number of alternate cylinders ´

number of disk drive heads) in the "alternate tracks/zone" field. It is recommended not to

specify values smaller than the IDD default value in this field.

c. Drive parameter (page code = 4)

To explicitly specify the number of cylinders in the user space, specify the number in the

"number of cylinders" field. Note that the number of alternate cylinders specified by the

format parameter (page code = 3) is included in the number of cylinders in the user space.

When the number of cylinders need not be specified, specify 0 or the default value in the

"number of cylinders" field. In this case, either of the smaller value between the number

of cylinders to allocate the number of logical data blocks specified in the "number of data

blocks" field of the block descriptor or the maximum number of cylinders that can be used

as the user space on the disk drive is allocated in the user space. When 0 is specified both

in the "number of cylinders" field and the "number of data blocks" field of the block

descriptor, the maximum number of cylinders that can be used as the user space on the

disk drive is allocated in the user space.

(2)

FORMAT UNIT command

Initialize all sides of the disk with the FORMAT UNIT command. The FORMAT UNIT

command initializes all sides of the disk using the P lists, verifies data blocks after

initialization, and allocates an alternate block for a defect block detected with verification.

With initialization, the value "00" is written into all bytes of all logical data blocks. Only the

position information of defect blocks detected with verification is registered in the G list. The

specifications are as follows:

a. Specifying CDB

Specify 0 for the "FmtData" bit and the "CmpLst" bit on CDB, 000 for the "Defect List

Format" field, and data pattern written into the data block at initialization for the

"initializing data pattern" field.

b. Format parameter

When the values in step a. are specified with CDB, the format parameter is not needed.

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5 - 17

5.6.4

Setting parameters

The user can specify the optimal operation mode for the user system environments by setting

the following parameters with the MODE SELECT or MODE SELECT EXTENDED

command:

Error recovery parameter

Disconnection/reconnection parameter

Caching parameter

Control mode parameter

With the MODE SELECT or MODE SELECT EXTENDED command, specify 1 for the "SP"

bit on CDB to save the specified parameter value on the disk. This enables the IDD to operate

by using the parameter value set by the user when power is turned on again. When the system

has more than one INIT, different parameter value can be set for each INIT.

When the parameters are not set or saved with the MODE SELECT or MODE SELECT

EXTENDED command, the IDD sets the default values for parameters and operates when

power is turned on or after reset. Although the IDD operations are assured with the default

values, the operations are not always optimal for the system. To obtain the best performance,

set the parameters in consideration of the system requirements specific to the user.

This section outlines the parameter setting procedures. Refer to Chapter 3 of SCSI Logical

Interface Specifications for further details of the MODE SELECT and MODE SELECT

EXTENDED commands and specifying the parameters.

IMPORTANT

1. At factory shipment of the IDD, the saving operation for the MODE

SELECT parameter is not executed. So, if the user does not set

parameters, the IDD operates according to the default value of each

parameter

2. The model select parameter is not saved for each SCSI ID of but as

the common parameter for all IDs. In the multi-INIT System,

parameter setting cannot be changed for each INIT.

3. Once parameters are saved, the saved value is effective as long as

next saving operation is executed from the INIT. For example, even if

the initialization of the disk is performed by the FORMAT UNIT

command, the saved value of parameters described in this section is

not affected.

4. When the IDD, to which the saving operation has been executed on a

system, is connected to another system, the user must pay attention to

that the IDD operates according to the saved parameter value if the

saving operation is not executed at installation.

5 - 18

C141-E064-03EN

5. The saved value of the MODE SELECT parameter is assumed as the

initial value of each parameter after the power-on, the RESET

condition, or the BUS DEVICE RESET message. The INIT can

change the parameter value temporary (actively) at any timing by

issuing the MODE SELECT or MODE SELECT EXTENDED

command with specifying "0" to the SP bit in the CDB.

(1)

Error recovery parameter

The following parameters are used to control operations such as IDD internal error recovery:

a. Read/write error recovery parameters (page code = 1)

Parameter

Default value

1 (enabled)

• ARRE:

Automatic alternate block allocation at read

operation

• TB:

Uncorrectable data transfer to the INIT

Immediate correction of correctable error

Report of recovered error

1 (enabled)

0 (disabled)

0 (Correction is

enabled.)

• EER:

• PER:

• DCR:

Suppression of ECC error correction

• Retry count at read operation

• Retry count at write operation

• Recovery time limit

30 sec

b. Verify error recovery parameters (page code = 7)

Parameter

Default value

• ERR:

• PER:

• DTE:

Immediate correction of recoverable error

Report of recovered error

Stop of command processing at successful

error recovery

1 (enabled)

0 (disabled)

0 (Processing is

continued.)

• DCR:

Suppression of ECC error correction

0 (Correction is

enabled.)

• Retry count at verification

c. Additional error recovery parameters (page code = 21)

Parameter

Default value

• Retry count at seek error

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5 - 19

Notes:

1. The user can arbitrarily specify the following parameters according to the system

requirements:

ARRE

PER

2. The user also can arbitrarily specify parameters other than the above. However, it is

recommended to use the default setting in normal operations.

(2)

Disconnection/reconnection parameters (page code = 2)

The following parameters are used to optimize the start timing of reconnection processing to

transfer data on the SCSI bus at a read (READ or READ EXTENDED command) or write

operation (WRITE, WRITE EXTENDED, or WRITE AND VERIFY command) of the disk.

Refer to Chapter 2 of SCSI Logical Interface Specifications for further details.

a. Disconnection/reconnection parameters (page code = 2)

Parameter

Default value

20 (HEX)

• Buffer full ratio

• Buffer empty ratio

20 (HEX)

Notes:

1. In a system without the disconnection function, these parameters need not be

specified.

2. Determine the parameter values in consideration of the following performance factors

of the system:

Time required for reconnection processing

Average data transfer rate of the SCSI bus

Average amount of processing data specified with a command

Refer to Chapter 2 of SCSI Logical Interface Specifications for how to obtain the

rough calculation values for the parameter values to be set. It is recommended to

evaluate the validity of the specified values by measuring performance in an operation

status under the average system load requirements.

5 - 20

C141-E064-03EN

(3)

Caching parameters

The following parameters are used to optimize IDD Read-Ahead caching operations under the

system environments. Refer to Chapter 2 of SCSI Logical Interface Specifications for further

details.

a. Read caching parameters

Parameter

Default value

0 (enabled)

0 (disabled)

• RCD:

• WCE:

• MS:

Disabling Read-Ahead caching operations

Write Cache Enable

Specifying the multipliers of "minimum

prefetch" and "maximum prefetch"

parameters

0 (Specifying

absolute value)

• DISC:

Prefetch operation after track switching

during prefetching

0 (inhibit)

• Number of blocks for which prefetch is suppressed

• Minimum prefetch

X'FFFF'

X'0000'

• Maximum prefetch

X'00XX'

(1 cache

segment)

• Number of blocks with maximum prefetch restrictions

• Number of segments

X'FFFF'

X'4'

Notes:

1. When Read-Ahead caching operations are disabled by the caching parameter, these

parameter settings have no meaning except write cache feature.

2. Determine the parameters in consideration of how the system accesses the disk.

When the access form is not determined uniquely because of the processing method,

the parameters can be re-set actively.

3. For sequential access, the effective access rate can be increased by enabling Read-

Ahead caching operations and Write Cache feature.

(4)

Control mode parameters

The following parameters are used to control the tagged queuing and error logging.

C141-E064-03EN

5 - 21

a. Control mode parameters

Parameter

• Queue algorithm modifier

Default value

0 (Ordering is

executed by read

command only.)

• QErr:

Resume or abort remaining suspended

commands after sense pending state

0 (command is

resumed)

• DQue:

Disabling tagged command queuing

0 (enabled)

5.7

Dismounting Drives

Since dismounting the drive to check the setting terminals, change the setting, or change the

drive depends on the structure of the system cabinet, the work procedures must be determined

in consideration of the requirements specific to the system. This section describes the general

procedures and notes on dismounting the drive.

It is recommended before dismounting the drive to make sure the spindle motor completely

stops after power was turned off.

a) Remove the power cable.

b) Remove the SCSI cable.

c) When the external operator panel is mounted, remove the cable. If it is difficult to access

the connector position, the cable may be removed after step e).

d) Remove the DC ground cable.

e) Remove the four mounting screws securing the drive, then remove the drive from the

system cabinet.

f) To store or transport the drive, keep it in an antistatic bag and provide packing (see Section

5.1).

5 - 22

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CHAPTER 6

DIAGNOSTICS AND MAINTENANCE

6.1 Diagnostics

6.2 Maintenance Information

This chapter describes diagnostics and maintenance information.

6.1

Diagnostics

6.1.1

Self-diagnostics

The IDD has the following self-diagnostic function. This function checks the basic operations

of the IDD.

Initial self-diagnostics

Online self-diagnostics (SEND DIAGNOSTIC command)

Table 6.1 lists the contents of the tests performed with the self-diagnostics. For a general

check of the IDD including the operations of the host system and interface, use a test program

that runs on the host system (see Subsection 6.1.2).

Table 6.1

Self-diagnostic functions

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6 - 1

Brief test contents of self-diagnostics are as follows.

a. Hardware function test

This test checks the basic operation of the controller section, and contains following test.

RAM (microcode is stored)

Peripheral circuits of microprocessor (MPU)

Memory (RAM)

Data buffer

b. Seek test

This test checks the positioning operation of the disk drive using several seek modes (2

points seek, 1 position sequential seek, etc.). The positioning operation is checked with

confirming the physical address information by reading the ID field (LBA) from the data

block on track 0 after completion of the seek operation to the target cylinder.

c. Write/read test

This test check the write/read function by using the Internal test space of the disk drive.

(1)

Initial self-diagnostics

When power is turned on, the IDD starts initial self-diagnostics. The initial self-diagnostics

checks the basic operations of the hardware functions.

If an error is detected in the initial self-diagnostics, the LED on the drive front panel blinks. In

this status, the IDD posts the CHECK CONDITION status to all I/O operation requests other

than the REQUEST SENSE command. When the CHECK CONDITION status is posted, the

INIT should issue the REQUEST SENSE command. The sense data obtained with the

REQUEST SENSE command details the error information detected with the initial self-

diagnostics.

Even if CHECK CONDITION status and sense data are posted, the LED continues blinking.

Only when the SCSI bus is reset, the BUS DEVICE RESET message is issued, or the power is

turned off or re-turned on, this status can be cleared. When this status is cleared, the IDD

executes the initial self-diagnosis again.

6 - 2

C141-E064-03EN

The IDD does not reply to the SCSI bus for up to 2 seconds after the initial self-diagnostics is

started. After that, the IDD can accept the I/O operation request correctly, but the received

command, except the executable commands under the not ready state (such as INQUIRY,

START/STOP UNIT), is terminated with the CHECK CONDITION status (NOT READY

[=2]/logical unit not ready [=04-00]) during the interval from the spindle motor becomes

stable to the IDD becomes ready. The executable command under the not ready state is

executed in parallel with the initial self-diagnostics, or is queued by the command queuing

feature and is executed after completion of the initial self-diagnostics. When the command

that comes under the exception condition of the command queuing is issued at that time, the

IDD posts the BUSY status for the command. When the error is detected during the initial

self-diagnostics, the CHECK CONDITION status is posted for all commands that were

stacked during the initial self-diagnostics. For the command execution condition, refer to

Section 1.4 and Subsection 1.7.4 in SCSI Logical Interface Specifications.

(2)

Online self-diagnostics (SEND DIAGNOSTIC command)

The INIT can make the IDD execute self-diagnostics by issuing the SEND DIAGNOSTIC

command.

The INIT specifies the execution of self-diagnostics by setting 1 for the SelfTest bit on the CDB in

the SEND DIAGNOSTIC command and specifies the test contents with the UnitOfl bit.

When the UnitOfl bit on the CDB is set to 0, the IDD executes the hardware function test only

once. When UnitOfl bit is set to 1, the IDD executes the hardware function test, seek

(positioning) test, and data write/read test for the Internal test space only once.

a. Error recovery during self-diagnostics

During the self-diagnostics specified by the SEND DIAGNOSTIC command, when the

recoverable error is detected during the seek or the write/read test, the IDD performs the

error recovery according to the MODE SELECT parameter value (read/write error recovery

parameter, additional error recovery parameter) which the INIT specifies at the time of

issuing the SEND DIAGNOSTIC command.

PER

Operation of self-diagnostics

The self-diagnostics continues when the error is recovered. The self-

diagnostics terminates normally so far as the unrecoverable error is not

detected.

The self-diagnostics continues when the error is recovered. If the

unrecoverable error is not detected, the consecutive tests are executed till

last test but the self-diagnostics terminates with error. The error

information indicates that of the last recovered error.

b. Reporting result of self-diagnostics and error indication

When all specified self-diagnostics terminate normally, the IDD posts the GOOD status for

the SEND DIAGNOSTIC command.

C141-E064-03EN

6 - 3

When an error is detected in the self-diagnostics, the IDD terminates the SEND

DIAGNOSTIC command with the CHECK CONDITION status. At this time only when

an error is detected in the hardware function test, the LED on the front panel of the disk

drive blinks.

The INIT should issue the REQUEST SENSE command when the CHECK CONDITION

status is posted. The sense data collected by the REQUEST SENSE command indicates

the detail information of the error detected in the self-diagnostics.

The IDD status after the CHECK CONDITION status is posted differs according to the

type of the detected error.

a) When an error is detected in the seek or write/read test, the subsequent command can

be accepted correctly. When the command other than the REQUEST SENSE and NO

OPERATION is issued from the same INIT, the error information (sense data) is

cleared.

b) When an error is detected in the hardware function test, the IDD posts the CHECK

CONDITION status for all I/O operation request except the REQUEST SENSE

command. The error status is not cleared and the LED on the front panel continues

blinking even if the error information (sense data) is read. Only when the SCSI bus is

reset, the BUS DEVICE RESET message is issued or the power is turned off or re-

turned on, the status can be cleared. When this status is cleared, the IDD executes the

initial self-diagnostics again (see item (1)).

Refer to Chapter 3 of SCSI Logical Interface Specifications for further details of the

command specifications.

CAUTION

Data loss

When the SEND DIAGNOSTIC command terminates with the

CHECK CONDITION status, the INIT must collect the error

information using the REQUEST SENSE command. The

RECEIVE DIAGNOSTIC RESULTS command cannot read out the

error information detected in the self-diagnostics.

6.1.2

Test programs

The basic operations of the IDD itself can be checked with the self-diagnostic function.

However, to check general operations such as the host system and interface operations in a

status similar to the normal operation status, a test program that runs on the host system must

be used.

The structure and functions of the test program depend on the user system requirements.

Generally, it is recommended to provide a general input/output test program that includes

SCSI devices connected to the SCSI bus and input/output devices on other I/O ports.

Including the following test items in the test program is recommended to test the IDD

functions generally.

6 - 4

C141-E064-03EN

(1)

(2)

(3)

(4)

Interface (SCSI bus) test

The operations of the SCSI bus and data buffer on the IDD are checked with the WRITE

BUFFER and READ BUFFER commands.

Basic operation test

The basic operations of the IDD are checked by executing self-diagnosis with the SEND

DIAGNOSTIC command (see Subsection 6.1.1).

Random/sequential read test

The positioning (seek) operation and read operation are tested in random access and sequential

access modes with the READ, READ EXTENDED, or VERIFY command.

Write/read test

By using a data block in the internal test space, the write/read test can be executed with an

arbitrary pattern for a disk drive in which user data is stored.

6.2

Maintenance Information

6.2.1

(1)

Maintenance requirements

Preventive maintenance

Preventive maintenance such as replacing air filters is not required.

CAUTION

Damage

Do not open the DE in the field because it is completely sealed.

(2)

Service life

The service life under suitable conditions and treatment is as follows. The service life is

depending on the environment temperature. Therefore, the user must design the system

cabinet so that the average DE surface temperature is as possible as low.

DE surface temperature: 45°C or less

DE surface temperature: 46°C to 50°C

DE surface temperature: 51°C to 55°C

DE surface temperature: 56°C and more

5 years

4 years

3 years

strengthen cooling power so that DE

surface temperature is 55°C or less.

Even if the IDD is used intermittently, the longest service life is 5 years.

C141-E064-03EN

6 - 5

Note:

The "average DE surface temperature" means the average temperature at the DE surface

throughout the year when the IDD is operating.

(3)

(4)

Parts that can be replaced in the field

The PCA cannot be replaced in the field. The DE cannot be replaced in the field.

Service system and repairs

Fujitsu has the service system and repair facility for the disk drive. Contact Fujitsu

representative to submit information for replacing or repairing the disk drive. Generally, the

following information must be included:

a) IDD model, part number (P/N), revision number, serial number (S/N), and date of

manufacturing

b) Error status

Date when the error occurred

System configuration

Environmental conditions (temperature, humidity, and voltage)

c) Error history

d) Error contents

Outline of inconvenience

Issued commands and specified parameters

Sense data

Other error analysis information

CAUTION

Data loss

Save data stored on the disk drive before requesting repair.

Fujitsu does not assume responsibility if data is destroyed during

servicing or repair.

6 - 6

C141-E064-03EN

See Section 5.1 for notes on packing and handling when returning the disk drive.

6.2.2

Revision numbers

The revision number of the disk drive is represented with a letter and a number indicated on

the revision label attached to the DE. Figure 6.1 shows the revision label format.

Machine revision

Figure 6.1 Revision label

(1)

(2)

Indicating revision number at factory shipment

When the disk drive is shipped from the factory, the revision number is indicated by deleting

numbers in the corresponding letter line up to the corresponding number with = (see Figure

6.2).

Changing revision number in the field

To change the revision number because parts are replaced or other modification is applied in

the field, the new level is indicated by enclosing the corresponding number in the

corresponding letter line with (see Figure 6.2).

C141-E064-03EN

6 - 7

IMPORTANT

When the revision number is changed after the drive is shipped

from the factory, Fujitsu issues "Engineering Change

Request/Notice" in which the new revision number is indicated.

When the user changes the revision number, the user should

update the revision label as described in item (2) after applying

the modification.

At shipment

Rev. A2

Revising at field

Rev. A3

Figure 6.2 Indicating revision numbers

6 - 8

C141-E064-03EN

APPENDIX A LOCATIONS OF CONNECTORS AND

SETTING TERMINALS

A.1 Locations of Connectors and Setting Terminals

(LC/MC models: SCA2 type LVD 16-bit SCSI)

A.2 Locations of Connectors and Setting Terminals

(LP/MP models: 68 pin type LVD 16-bit SCSI)

This appendix shows the locations of connectors and setting terminals.

C141-E064-03EN

A - 1

A.1

Locations of Connectors and Setting Terminals

(LC/MC models: SCA2 type LVD 16-bit SCSI)

15/16

CN2

1/2

CN1

(Viewed from bottom side)

(Rear view)

(MAF series LC/MC)

Pin 80

Pin 41

46±0.5

Pin 40

Pin 1

(MAE series LC,

MAG series LC/MC)

(Rear view)

Pin 80

Pin 41

46±0.5

Pin 40

Pin 1

Figure A.1 Locations of connectors and setting terminals

(LC/MC models: SCA2 type LVD 16-bit SCSI)

A - 2

C141-E064-03EN

A.2

Locations of Connectors and Setting Terminals

(LP/MP models: 68 pin type LVD 16-bit SCSI)

23/24

CN2

CN1

1/2

(Viewed from bottom side)

(Rear View)

Pin A11

Pin A1

(MAF series LP/MP)

Pin 1

Pin 34

Pin 1

Pin 35

Pin A12

SCSI connector (CN1)

Connector for external

operator panel (CN)

Pin A2

Pin 68

SCSI connector (CN1)

(Rear View)

(MAE series LP,

Pin A11

Pin A1

(MAG series LP/MP)

Pin 1

Pin 34

Pin 1

25.4±0.5

Pin 35

SCSI connector (CN1)

Pin A2

Pin 68

Pin A12

Connector for external

operator panel (CN)

SCSI connector (CN1)

Figure A.2 Locations of connectors and setting terminals

(LP/MP models: 68 pin type LVD 16-bit SCSI)

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A - 3

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APPENDIX B

SETTING TERMINALS

B.1 Setting Terminals

This appendix describes setting terminals.

C141-E064-03EN

B - 1

B.1

Setting Terminals

Table B.1 Setting terminal: CN2

Setting item

Pins

Setting contents

9 - 10 7 - 8

5 - 6

3 - 4

1 - 2

SCSI ID

(Open) Open Open Open SCSI ID #0

(Open) Open Open Short SCSI ID #1

(Open) Open Short Open SCSI ID #2

(Open) Open Short Short SCSI ID #3

(Open) Short Open Open SCSI ID #4

(Open) Short Open Short SCSI ID #5

(Open) Short Short Open SCSI ID #6

(Open) Short Short Short SCSI ID #7

Short Open Open Open SCSI ID #8

Short Open Open Short SCSI ID #9

(Common to 8-bit and 16-bit SCSI) (*1)

(Common to 8-bit and 16-bit SCSI)

(16-bit SCSI only)

Short Open Short Open SCSI ID #10 (16-bit SCSI only)

Short Open Short Short SCSI ID #11 (16-bit SCSI only)

Short Short Open Open SCSI ID #12 (16-bit SCSI only)

Short Short Open Short SCSI ID #13 (16-bit SCSI only)

Short Short Short Open SCSI ID #14 (16-bit SCSI only)

Short Short Short Short SCSI ID #15 (16-bit SCSI only)

Write operation is enabled.

(*2)

Write protect Open

Short

Write operation is disabled.

* Setting at factory shipment (*1: LC/MC, *2: LP/MP)

For LP/MP models

Setting item

Motor start mode

Force Narrow

Pins

Setting contents

11 - 12 13 - 14 15 - 16 23 - 24

Open

Short

Open

Short

Open

Short

Started by the START/STOP command

Started by turning the power supply on (*)

Width of 16 bit bus (*)

Width of 8 bit bus

Force Single Ended

Follows DIFFSNS signal level on SCSI bus (*)

Single-Ended mode

Terminating power

supply

Open Does not supply terminating resistor power to SCSI

BUS

Short Supply terminating resistor power to SCSI BUS (*)

* Setting at factory shipment

B - 2

C141-E064-03EN

For LC/MC models

Setting item

Pins

Setting contents

11 - 12 13 - 14 15 - 16 23 - 24

Motor start mode

Force Narrow

Open

Short

Open

Short

Open

Short

Started by turning the power supply on (*)

Started by the START/STOP command

Width of 16 bit bus (*)

Width of 8 bit bus

Force Single Ended

Follows DIFFSNS signal level on SCSI bus (*)

Single-Ended mode

* Setting at factory shipment

Note:

See the description of Section 5.3 for details of the setting requirements and notes.

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B - 3

This page is intentionally left blank.

APPENDIX C CONNECTOR SIGNAL ALLOCATION

C.1 SCSI Connector Signal Allocation: SCA2 type LVD

16-bit SCSI

C.2 SCSI Connector Signal Allocation: 68 pin type LVD

16-bit SCSI

This appendix describes the connector signal allocation.

C141-E064-03EN

C - 1

C.1

SCSI Connector Signal Allocation: SCA2 type LVD 16-bit SCSI

Table C.1 SCSI connector (SCA2 type LVD 16-bit SCSI): CN1

Pin No.

Signal

+12V (Charge)

+12V

Signal

Pin No.

12V RETURN (GND)

+12V

12V RETURN (GND)

+12V

12V RETURN (MATED 1)

Reserved (N.C.)

–DB11

Reserved (N.C.)

DB11

–DB10

DB10

–DB09

DB09

–DB08

DB08

–I/O

I/O

–REQ

REQ

–C/D

C/D

–SEL

SEL

–MSG

MSG

–RST

RST

ACK

–ACK

–BSY

BSY

–ATN

ATN

–P_CRCA

–DB07

P_CRCA

DB07

–DB06

DB06

–DB05

DB05

–DB04

DB04

–DB03

DB03

–DB02

DB02

–DB01

DB01

–DB00

DB00

–DBP1

DBP1

–DB15

DB15

–DB14

DB14

–DB13

DB13

–DB12

DB12

5V RETURN (MATED 2)

5V RETURN (GND)

–LED

5V (Charge)

– SPINDLE SYNC

RMT START

SCSI ID0

SCSI ID2

DLYD START

SCSI ID1

SCSI ID3

C - 2

C141-E064-03EN

C.2

SCSI Connector Signal Allocation: 68 pin type LVD 16-bit SCSI

Table C.2 SCSI connector (68 pin type LVD 16-bit SCSI): CN1

Pin No.

Signal

DB12

DB13

DB14

DB15

DBP1

DB00

DB01

DB02

DB03

DB04

DB05

DB06

DB07

P_CRCA

GND

Signal

–DB12

–DB13

–DB14

–DB15

–DBP1

–DB00

–DB01

–DB02

–DB03

–DB04

–DB05

–DB06

–DB07

–P_CRCA

GND

Pin No.

GND

TERMPWR*

(Reserved)

GND

TERMPWR*

(Reserved)

GND

ATN

–ATN

GND

BSY

–BSY

ACK

–ACK

RST

–RST

MSG

–MSG

SEL

–SEL

C/D

–C/D

REQ

–REQ

I/O

–I/O

DB08

DB09

DB10

DB11

–DB08

–DB09

–DB10

–DB11

*1 Power supply for the terminating resistor

C141-E064-03EN

C - 3

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APPENDIX D MODEL NAMES AND PRODUCT NUMBERS

D.1 Model Names and Product Numbers

This appendix lists model names (types) and product numbers.

C141-E064-03EN

D - 1

D.1

Model Names and Product Numbers

Table D.1 MAE, MAF and MAG series model names and product numbers

Data block

length

(at factory

shipment)

Total

storage

capacity

(user area)

Model name

(type)

Mounting

screw

SCSI type

Ultra SCSI

Part number

Remarks

1.6-inch height

10,025 rpm

10 disks

MAF3364LP 68-pin, LVD

MAF3364LC SCA2, LVD

MAF3364MP 68-pin, LVD

MAF3364MC SCA2, LVD

MAE3182LP 68-pin, LVD

MAE3182LC SCA2, LVD

MAE3091LP 68-pin, LVD

MAE3091LC SCA2, LVD

MAG3182LP 68-pin, LVD

MAG3182LC SCA2, LVD

MAG3182MP 68-pin, LVD

MAG3182MC SCA2, LVD

MAG3091LP 68-pin, LVD

MAG3091LC SCA2, LVD

MAG3091MP 68-pin, LVD

MAG3091MC SCA2, LVD

512B

36.4 GB

18.2 GB

9.1 GB

#6-32UNC CA01776-B950

CA01776-B920

19 heads

1.6-inch height

10,025 rpm

10 disks

#6-32UNC CA05747-B950

CA05747-B920

19 heads

1-inch height

7,200 rpm

4 disks

#6-32UNC CA05348-B450

CA05348-B420

8 heads

1-inch height

7,200 rpm

2 disks

#6-32UNC CA05348-B250

CA05348-B220

4 heads

1.6-inch height

10,025 rpm

5 disks

18.2 GB

9.1 GB

#6-32UNC CA01776-B550

CA01776-B520

10 heads

1-inch height

10,025 rpm

5 disks

#6-32UNC CA05747-B550

CA05747-B520

10 heads

1-inch height

10,025 rpm

3 disks

#6-32UNC CA01776-B350

CA01776-B320

5 heads

1-inch height

10,025 rpm

3 disks

9.1 GB

#6-32UNC CA05747-B350

CA05747-B320

5 heads

Note:

Only above models are available currently.

SE: Single-ended

MAx3xxxLC uses SCA-2 type connector.

D - 2

C141-E064-03EN

Index

16-bit SCSI 1-2, 4-16

8-bit SCSI 1-2

Connection requirements 4-16

Connections 5-3

Connector signal allocation C-1, C-2

Connectors of terminals location 4-16, 4-24

Contact start/stop 1-8

Continuous block processing 1-3

Control mode parameters 5-21

Controller circuit 1-9

Current waveform 4-13

Cylinder configuration 3-1, 3-2

Cylinder skew 3-7

AC noise filter 4-15

Actuator 1-9

Additional error recovery parameters 5-19

Addressing of peripheral device 1-11

Air circulation 1-9

Air pressure adjustment hole 4-12

Allowable input current 4-13

Allowable input voltage 4-13

Alternate area 3-11

Alternate block allocation 3-12, 3-13, 3-14

Alternate cylinder 3-5

D list 3-12

DC ground 4-28

Alternate sector treatment 3-12

Alternate spare area 3-5

DE 1-9

Data field 3-9

Atitute 2-4

Data format 3-1

Automatic alternate block allocation 3-16

Automatic alternate block reassignment 1-4

Average DE surface temperature 2-6

Data security at power-failure 2-6

Data space 3-1

Default 5-9

Defect Management 3-12

Defect list 3-12

Defective block slipping 1-4

Delivery 5-2

Diagnosis 1-4

BCRC 3-9

Basic operation test 6-5

Block address of user space 3-11

Block descriptor 5-16

Breather filter 1-9

Diagnostics 6-1

Diagnostics and maintenance 6-1

Disconnecting drives 5-22

Disconnection 5-20

Disk configuration 1-8

Disk enclosure 1-9

Disks 1-8

CE space 3-5

CN1 4-16, C-2, C-3

CSS 1-8

Drive parameter 5-17

Cable connection 4-23

Cable connection requirements 4-23

Caching parameters 5-21

Changing revision number at factory shipment

6-7

Check before mounting 5-10

Check items at illegal operation 5-12

Checking SCSI connection 5-13, 5-14, 5-15

Checking at abnormal end 5-16

Checking procedure 5-13

Command queuing feature 1-3

Compactness 1-2

ECC 3-9

Environmental requirements 2-4

Environmental specifications 2-4

Environmental temperature 4-10

Error indication of self-diagnostics 6-3

Error rate 2-5

Error recovery 1-4

Error recovery during self-diagnostics 6-3

Error recovery parameters 5-19

External dimensions 4-1, 4-2, 4-3, 4-4, 4-5,

4-6, 4-7

Confirming Operations after Installation for

use 5-12

Confirming initial operations 5-12

External magnetic field 4-11

C141-E064-03EN

IN-1

External operator panel 4-28, 4-29

External operator panel circuit example 4-29

External operator panel connector 4-18, 4-19

External operator panel connector signals

4-20

MODE SELECT EXTENDED command 5-

MODE SELECT command 5-18

MR 1-8

MTBF 2-5

MTTR 2-5

FG 4-29

Magnet - Resistive 1-8

Maintenance information 6-5

Maintenance requirements 6-5

Microprocessing unit 1-9

Mode setting 5-8

FORMAT UNIT command 5-17

Format capacity 3-10

Format parameter 5-17

Function specifications 2-2

Mode settings 5-9

Model name 2-1, D-1, D-2

Motor start mode 5-8

Motor start mode setting 5-8

Mounting drives 5-10

Mounting frame structure 4-8

Mounting orientation 4-8

Mounting procedure 5-10

Mounting requirements 4-1

G list 3-12

G1 3-8

Gaps 3-8

General description 1-1

General notes 5-1

Hardware function test 6-2

Head configuration 1-8

Heads 1-8

High speed data transfer 1-2

High speed positioning 1-4

Humidity 2-4

Noise filter 4-15

Notes on mounting 4-8

Online self-diagnostics 6-3

Outer view 1-5, 1-6, 1-7

Output signal 4-21

Indicating revision number 6-7

Initial self-diagnostics 6-2

Input signal 4-20

Output signal for external LED 4-22

Installation 5-1, 5-2

Installation requirements 4-1

Interface connector 4-17

Interface test 6-5

PAD 1 3-9

PAD 2 3-9

PAD 3 3-9

Internal test space 3-4

PLO sync 3-8

EPR4ML 1-9

Packaging 5-2

Partial response class 4 maximum likelihood

1-9

Parts that can be replaced in the field 6-6

Physical sector allocation 3-6

Positioning error rate 2-5

Power cable 4-28

Power on/off sequence 4-13, 4-14

Power requirements 2-4, 4-13

Power supply 4-17

Power supply connector 4-17, 4-25

Prefetches 1-3

LBA 3-8

LUN 1-11

Large capacity 1-4

Leak magnetic flux 4-11

Limitation of side-mounting 4-9

Location of connector A-2, A-3

Logical data block addressing 3-11

Low noise 1-5

Low power consumption 1-5

Low vibration 1-5

Preparating after Installation for use 5-12

Preventive maintenance 6-5

IN-2

C141-E064-03EN

Product number 2-1

Programmable data block length 1-4

Programmable multi-segment data buffer 1-3

Setting terminals position 5-5

Shock 2-4

Spare sector 3-5

Specifications 2-1

Specifying CDB 5-17

Spindle motor 1-9

Standard features 1-2

Start/Stop of spindle motor 1-4

Storage 5-2

Random read test 6-5

Read circuit 1-9

Read-ahead cache feature 1-3

Read/write error recovery parameter 5-19

Recirculation filter 1-9

Recommended components for connection

4-23, 4-28

Reconnection parameter 5-20

Release function 1-3

Reliability 2-5

Structure 1-5

Surface temperature check point 4-10

Surface temperature measurement points 4-

Sync byte 3-8

System configuration 1-10

System space 3-4

Reporting result of self-diagnostics 6-3

Reserve function 1-3

Revision label 6-7

Revision numbers 6-7

TERMON 4-28

Temperature 2-4

Terminator on 4-28

Test programs 6-4

Track capacity 3-3

Track format 3-6

Track skew 3-7

SA space 3-4

SB 3-8

SCA2 type SCSI model 4-24

SCSI ID 1-11

SCSI ID external input 4-20

SCSI bus configuration 1-10

SCSI bus connection 5-3

SCSI bus test 6-5

Unrecoverable error rate 2-5

User space 3-4

SCSI connector 4-17, 4-25

SCSI function specifications 2-7

SCSI/CCS standard 1-2

SG 4-29

Verify error recovery parameters 5-19

Vibration 2-4

SG terminal 4-18

Sector format 3-8

Sector slip treatment 3-12

Seek test 6-2

Wide range 1-5

Self-diagnostics 6-1

Write circuit 1-9

Sequential read test 6-5

Sequential starting of spindle motor 4-15

Service clearance area 4-11

Service life 2-6, 6-5

Write protect 5-8

Write protect setting 5-8

Write/read test 6-2

Service system and repairs 6-6

Setting SCSI terminal 5-7

Setting SCSI terminal power supply 5-7

Setting check list 5-10

Setting parameters 5-18

Setting terminals 5-5, 5-6, B-1, B-2

Zone layout 3-3

C141-E064-03EN

IN-3

Comments concerning this manual can be directed to one of the following addresses:

FUJITSU LIMITED

Business Planning

FUJITSU ICL ESPAÑA S.A.

Almagro 40, 28010 Madrid, SPAIN

Solid Square East Tower

580 Horikawa-cho,Saiwai-ku, Kawasaki,

210-0913, Japan

TEL:

FAX:

34-91-681-8100

34-91-681-8125

TEL:

FAX:

81-44-540-4056

81-44-540-4123

FUJITSU AUSTRALIA LIMITED

2 Julius Avenue (Cnr Delhi Road) North Ryde N.S.W. 2113,

AUSTRALIA

FUJITSU COMPUTER PRODUCTS OF AMERICA, INC.

2904 Orchard Parkway, San Jose,

TEL:

FAX:

61-2-9776-4555

61-2-9776-4556

California 95134-2009, U.S.A.

TEL:

FAX:

1-408-432-6333

1-408-432-3908

FUJITSU HONG KONG LTD.

Room 2521, Sun Hung Kai Centre, 30 Harbour Road, HONG

HONG

FUJITSU CANADA INC.

2800 Matheson Blvd. East, Mississauga, Toronto,

Ontario L4W 4X5, CANADA

TEL:

FAX:

852-2827-5780

852-2827-4724

TEL:

FAX:

1-905-602-5454

1-905-602-5457

FUJITSU KOREA LTD.

Coryo Finance Center Bldg, 23-6, YoulDo-Dong,

Young DungPo-Gu, Seoul, Republic of KOREA

FUJITSU EUROPE LIMITED

2, Longwalk Road, Stockley Park, Uxbridge,

Middlesex UB11 1AB, ENGLAND

TEL:

FAX:

82-2-3787-6000

82-2-3787-6070

TEL:

FAX:

44-81-573-4444

44-81-573-2643

FUJITSU COMPUTERS (SINGAPORE) PTE. LTD

20 Science Park Road #03-01,

TELETECH PARK SINGAPORE SCIENCE PARK II,

Singapore 117674

FUJITSU DEUTSCHLAND GmbH

Frankfurter Ring 211, 80807 München, GERMANY

TEL:

FAX:

65-777-6577

65-771-5499

TEL:

FAX:

49-89-323780

49-89-32378100

FUJITSU TAIWAN LTD.

FUJITSU NORDIC AB

Kung Hans Väg 12, S-192 68 Sollentura, SWEDEN

8F, Hun Tai Center, 168-170, Tun Hwa North Road,

1st Sec., Taipei, TAIWAN

TEL:

FAX:

46-8-626-4500

46-8-626-4588

TEL:

FAX:

886-2-545-7700

886-2-717-4644

FUJITSU ITALIA S.p.A.

Via Nazario Sauro, 38 20099 Sesto S. Giovanni (MI), ITALY

FUJITSU SYSTEMS BUSINESS (MALAYSIA) SDN. BHD.

Fujitsu Plaza, 1A, Jalan Tandang 204, P.O. Box 636 Pejabat Pos

Jalan Sultan

TEL:

FAX:

39-2-26294-1

39-2-26294-201

46770 Petaling Jaya, Selangor Darul Ehsan, Malaysia

TEL:

FAX:

60-3-793-3888

60-3-793-0888

FUJITSU FRANCE S.A.

I, Place des Etas-Unis, SILIC 310,

94588 Rungis Cedex, FRANCE

FUJITSU SYSTEMS BUSINESS (THAILAND) LTD.

12th F1., Olympia Thai Tower, 444 Rachadapisek Road,

Samsennok, Huay Kwang, Bangkok 10320, Thailand

TEL:

FAX:

33-1-41-80-38-80

33-1-41-80-38-66

TEL:

FAX:

66-2-512-6066

66-2-512-6068

FUJITSU LIMITED

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