Fujitsu MAH3182MC SERIES User manual

C141-E103-01EN
MAH3182MC/MP SERIES
MAH3091MC/MP SERIES
MAJ3364MC/MP SERIES
MAJ3182MC/MP SERIES
MAJ3091MC/MP SERIES
DISK DRIVES
PRODUCT/MAINTENANCE MANUAL

C141-E103-01EN i
REVISION RECORD
Edition Date published Revised contents
01 Feb., 2000
Specification No.: C141-E103-**EN
The contents of this manual is subject to
change without prior notice.
All Rights Reserved.
Copyright 2000 FUJITSU LIMITED

This page is intentionally left blank.

C141-E103-01EN iii
FOR SAFE OPERATION
Handling of This manual
This manual contains important information for using this product. Read thoroughly before using
the product. Use this product only after thoroughly reading and understanding especially the
section “Important Alert Items” in this manual. Keep this manual handy, and keep it carefully.
FUJITSU makes every effort to prevent users and bystanders from being injured or from suffering
damage to their property. Use the product according to this manual.
(Proceed to the Copyright Page)

iv C141-E103-01EN
Related Standards
Specifications and functions of products covered by this manual comply with the following
standards.
Standard (Text) No. Name Enacting Organization
ANSI X3.131-1986 American National Standard for
Information Systems—Small Computer
System Interface (SCSI)
American National
Standards Institute
(ANSI)
ANSI X3.131-1994 American National Standard for
Information Systems—Small Computer
System Interface - 2(SCSI-2)
American National
Standards Institute
(ANSI)
X3T9.2/85-52 Rev 4.B COMMON COMMAND SET (CCS)
of the Small Computer
System Interface (SCSI)
American National
Standards Institute
(ANSI)
X3T9.2/855D Rev 12 WORKING DRAFT Information
Technology SCSI-3 Parallel Interface American National Standards Institute
(ANSI)
T10/1236-D Rev 12 WORKING DRAFT Information
technology SCSI Primary Commands-2
(SPC-2)
American National
Standards Institute
(ANSI)
ANSI NCITS 306-199x American National Standard for
Information Technology—SCSI-3 Block
Commands (SBC)
American National
Standards Institute
(ANSI)
X3T10/994D Rev 18 WORKING DRAFT Information
technology SCSI-3 Architecture Model
(SAM)
American National
Standards Institute
(ANSI)
T10/1302D Rev 11 WORKING DRAFT Information
technology SCSI Parallel Interface-3
(SPI-3)
American National
Standards Institute
(ANSI)
All Right Reserved, Copyright © 2000 Fujitsu Limited

C141-E103-01EN v
PREFACE
This manual describes the MAH3182MC/MP, MAH3091MC/MP (hereafter, MAH series) and
MAJ3364MC/MP, MAJ3182MC/MP, MAJ3091MC/MP (hereafter, MAJ series), 3.5 type 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 MAH series and MAJ series disk drives and discusses their standard features,
hardware, and system configuration.
Chapter 2 SPECIFICATIONS
This chapter gives detailed specifications of the MAH series and MAJ 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 MAH series and MAJ
series disk drives.
Chapter 5 INSTALLATION
This chapter explains how to install MAH series and MAJ 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 MAH series and MAJ series disk drive.
This chapter also describes diagnostic methods for operation check and the basics of troubleshooting the
disk drives.
Chapter 7 ERROR ANALYSIS
This chapter describes in details how collect the information for error analysis and how analyze collected
error information.
Chapter 8 PRINCIPLE OF OPERATION
This chapter explains disk drives configuration and operation of MAH series and MAJ series.

vi C141-E103-01EN
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.
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

C141-E103-01EN vii
This manual indicates;
Decimal number: Indicates as it is.
Hexadecimal number: Indicates as X’17B9’, 17B9h, or 17B9H
Binary number: Indicates as “010”
DISCLAIMER
Failure of the MAH series and MAJ 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 AJ 3 364 MC
Interface types MC: LVD, 16-bit SCSI SCA2 connector 160MHz transfer
MP: LVD, 16-bit SCSI 68 pin connector 160MHz transfer
Formatted capacity (100 MB units)
Disk drive size 3: 3.5 type. Hand Disk Drive
Type AH: Number of rotations 7,200min-1 (7,200rpm)
AJ: Number of rotations 10,025min-1 (10,025rpm)
Note 2: Type model name
Type model name Model name
MAH3182 MAH3182MC, MAH3182MP
MAH3091 MAH3091MC, MAH3091MP
MAJ3364 MAJ3364MC, MAJ3364MP
MAJ3182 MAJ3182MC, MAJ3182MP
MAJ3091 MAJ3091MC, MAJ3091MP

viii C141-E103-01EN
Important Alert Items
Important Alert Messages
The important alert messages in this manual are as follows:
A hazardous situation could result in minor or moderate personal injury if the
user does not perform the procedure correctly. This alert signal also indicates
that damages to the product or other property may occur if the user does not
perform the procedure correctly.
Task Alert message Page
Mounting Installation For MAH and MAJ series, Reed Solomon codes are applied for
their ECC.
The sector-data is divided into 4 interleaving sectors, and ECC is
performed in each sector where the maximum number of errors (up
to 5 byte) can be corrected. [Total maximum byte: 5 byte x 4 (
interleave) = 20 byte]
If the error of read sector keeps allowable error byte number,
correction is performed.
However, if error byte exceeds its allowable number, correction
may not be performed properly.
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.
Damage
1. Check that system power is off before connecting or
disconnecting cables.
2. Do not connect or disconnect cables when power is on.
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.
2-5
5-5
5-11

C141-E103-01EN ix
Task Alert message Page
Mounting Installation 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.
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.
Caution
1. To avoid shocks, turn off the power before mounting or
removing a PCA, and before connecting or disconnecting a
cable, connector, or plug.
2. To avoid injury, do not touch the mechanical assembly during
disk drive operation.
3. Do not use solvents to clean the disk drive.
Caution
1. Always ground yourself with a wrist strap connected to ground
before handling. ESD (Electrostatics Discharge) may cause
the damage to the device.
2. To prevent electrical damage to the disk drive, turn the power
off before mounting or removing a PCA or connecting or
disconnecting a cable, connector, or plug.
3. Do not turn the power on while removing a PCA. This
operation is required to prevent unexpected or unpredictable
operation.
4. Do not use a conductive cleaner to clean a disk drive assembly.
5. Open all ventilation holes to prevent overheating of electric
circuits.
6. Ribbon cables are marked with a colored line. Connect the
ribbon cable to a cable connector with the colored wire
connected to pin 1.
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.
Caution
Never open the disk enclosure in the field. Opening the disk
enclosure in the field may cause an irreparable fault.
6-4
6-5
6-6
6-7
6-15