Fujitsu MAB3091FC Series User manual

C141-F028-01EN
MAA3182FC SERIES
MAB3091FC, MAB3045FC SERIES
MAC3091FC, MAC3045FC SERIES
DISK DRIVES
FIBRE CHANNEL INTERFACE
MAINTENANCE MANUAL

C141-F028-01EN i
REVISION RECORD
Edition Date published Revised contents
01 Apr., 1998
Specification No.: C141-F028-**EN
The contents of this manual is subject to
change without prior notice.
All Rights Reserved.
Copyright 1998 FUJITSU LIMITED

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C141-F028-01EN 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.
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
Version No. EPROM Version No. Standard INQUIRY Data Product Revision (ASCII)
READ RAM Command
WRITE RAM Command These commands cannot be used in the current version.
(Proceed to the Copyright Page)

iv C141-F028-01EN
Related Standards
Specifications and functions of products covered by this manual comply with the following
standards.
Standard (Text) No. Name Enacting Organization
NCITS TR-9 FIBRE CHANNEL PRIVATE LOOP
SCSI DIRECT ATTACH (FC-PLDA) American National Standards Institute
(ANSI)
ANSI X3.230-1994 FIBRE CHANNEL PHYSICAL AND
SIGNALING INTERFACE (FC-PH) American National Standards Institute
(ANSI)
ANSI X3.297-1996 FIBRE CHANNEL PHYSICAL AND
SIGNALING INTERFACE-2 (FC-PH-
2)
American National
Standards Institute
(ANSI)
ANSI X3.272-199X FIBRE CHANNEL ARBITRATED
LOOP (FC-AL) American National Standards Institute
(ANSI)
ANSI X3.269-199X FIBRE CHANNEL PROTOCOL FOR
SCSI (SCSI-FCP) American National Standards Institute
(ANSI)
All Right Reserved, Copyright © 1998 Fujitsu, Limited

C141-F028-01EN v
PREFACE
This manual explains concerning the MAA3182FC (hereafter, MAA31xxFC), MAB3091FC and
MAB3045FC (hereafter, MAB30xxFC), MAC3091FC and MAC3045FC (hereafter, MAC30xxFC) series of
3.5 inch hard disk drives with built-in SCSI controller.
This manual gives detailed explanations of device configuration, fault analysis, parts replacement,
operation check, adjustment, and hardware operation principles for the disk drives.
This manual is for engineers who have used fixed-type magnetic disk drives and are familiar with the
operation environment of magnetic disk drives in user systems.
For the organization of manuals related to these disk drives and the scope of descriptions in this manual, see
the "Manual system" described later. A full understanding on the contents of all volumes of the OEM
manuals is assumed. (The OEM manuals have volumes covering product specification and installation
procedure, interface specifications, and command processing functions and command specifications).
This manual is organized as follows:
This manual consists of the 5 chapters shown below, a Glossary and a list of Abbreviations.
CHAPTER 1 SPECIFICATIONS AND EQUIPMENT CONFIGURATION
This chapter explains concerning the basic specifications, the basic configuration, interface connector, setting
switches and setting plug of the MAA31xxFC, MAB30xxFC and MAC30xxFC series disk drives.
CHAPTER 2 MAINTENANCE AND DIAGNOSIS
This chapter describes the basic requirements for maintenance of the MAA31xxFC, MAB30xxFC and
MAC30xxFC series disk drives. This chapter also describes diagnostic methods for operation check
and the basics of troubleshooting the disk drives.
CHAPTER 3 FAULT ANALYSIS
This chapter describes how to collect fault analysis information and how to analyze the collected information.
CHAPTER 4 REMOVING AND REPLACING PARTS
This chapter describes how to remove and replace parts that can be replaced in the field.
CHAPTER 5 OPERATION PRINCIPLES
This chapter describes the hardware configuration and operation of the MAA31xxFC, MAB30xxFC and
MAC30xxFC series disk drives.
Glossary
Abbreviations

vi C141-F028-01EN
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-F028-01EN vii
DISCLAIMER
Failure of the MAA31xxFC, MAB30xxFC and MAC30xxFC 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
MAA3182FC
Interface types FC: Fibre Channel
Memory capacity (100 MB units)
Disk size 3: 3.5 inch
Type AA: 1.6-inch height (7,200 rpm)
AB: 1-inch height (7,200 rpm)
AC: 1-inch height (10,033 rpm)
Note 2: Type model name
Type model name Model name
MAA3182 MAA3182FC
MAB3091 MAB3091FC
MAB3045 MAB3045FC
MAC3091 MAC3091FC
MAC3045 MAC3045FC

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C141-F028-01EN ix
Cautions Regarding Safety
List of Items with Serious Warnings
Serious warnings included in this manual are as follows.
CAUTION Indicates items for which, if the product is not used correctly, there is danger not
only of minor or mildly severe injury, but also danger of the product itself being
damaged or of other users and their property being injured or damaged.
Work Category Warning Item Page
During Storage Injury
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.
2-1
Injury
To prevent injury to workers, note the cautions listed in
Subsection 2.1.1. 4-3
During Assembly,
Maintenance Damage to the Equipment
1. To discharge static electricity from the human body, touch the
frame (grounding) before touching a PCA. This prevents the
PCA from being damaged by static electricity.
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.
2-2

xC141-F028-01EN
Work Category Warning Item Page
Equipment Damage
• Do not open the DE in the field because it is completely
sealed.
• Opening the disk enclosure in the field may cause an
irreparable fault.
2-2
2-11
Destruction of Data
Save data stored on the disk drive before requesting repair. Fujitsu
does not assume responsibility if data is destroyed during
servicing or repair.
2-3
Equipment Damage
1. To prevent damage to the disk drive, note the cautions listed
in Section 2.1.1.
2. Turn off the system power completely before removing the
disk drive. Do not remove cables or disk drive mounting
screws while the power is on.
3. Do not move or remove the disk drive until disk drive
operation stops completely. The waiting time before moving
or removing the drive is about 30 seconds after the spindle
motor is stopped by a START/STOP UNIT command, or 30
seconds after the power is turned off.
4-3

C141-F028-01EN xi
Manual System
FIBRE
CHANNEL
PRODUCT
MANUAL
• Outline
• Specifications
• Data Format
• Installation Conditions
• Installation Procedure
• Diagnosis and Maintenance
FIBRE
CHANNEL
Inteface
Specifications
• Fibre Channel Interface
• Command Processing
• Data Buffer Management
• Command Specification
• Sense Data and Error Recovery Procedure
• Disk Medium Management
FIBRE
CHANNEL
MAINTENANCE
MANUAL
<This manual>
• Specifications and Equipment Configuration
• Maintenance and Diagnostic
• Error Analysis
• Removal and Replacement Procedures
• Principle of Operation

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C141-F028-01EN xiii
CONTENTS
page
CHAPTER 1 SPECIFICATIONS AND EQUIPMENT CONFIGURATION ..................1 - 1
1.1 Product Specifications....................................................................................................1 - 1
1.2 Installation Conditions ................................................................................................... 1 - 1
1.3 Power Supply Conditions............................................................................................... 1 - 1
1.4 Connection Conditions...................................................................................................1 - 2
1.5 Settings...........................................................................................................................1 - 2
CHAPTER 2 MAINTENANCE AND DIAGNOSIS ........................................................... 2 - 1
2.1 Maintenance Conditions.................................................................................................2 - 1
2.1.1 Precautions .....................................................................................................................2 - 1
2.1.2 Maintenance requirements.............................................................................................. 2 - 2
2.1.3 Maintenance levels.........................................................................................................2 - 4
2.1.4 Revision numbers...........................................................................................................2 - 5
2.1.5 Tools and test equipment................................................................................................ 2 - 6
2.1.6 Self-diagnostic functions................................................................................................ 2 - 6
2.1.7 Tests ...............................................................................................................................2 - 6
2.2 Operation Check.............................................................................................................2 - 8
2.2.1 Initial seek operation check............................................................................................ 2 - 8
2.2.2 Operation test ................................................................................................................. 2 - 8
2.2.3 Diagnostic test................................................................................................................2 - 8
2.3 Troubleshooting Procedures...........................................................................................2 - 9
2.3.1 Outline of troubleshooting procedures ........................................................................... 2 - 9
2.3.2 Troubleshooting with disk drive replacement in the field ..............................................2 - 9
2.3.3 Troubleshooting at the repair site ...................................................................................2 - 10
2.3.4 Troubleshooting with parts replacement in the factory................................................... 2 - 11
2.3.5 Finding possibly faulty parts.......................................................................................... 2 - 11
CHAPTER 3 ERROR ANALYSIS....................................................................................... 3 - 1
3.1 Error Analysis Information Collection ........................................................................... 3 - 1
3.1.1 Sense data.......................................................................................................................3 - 1
3.1.2 Sense key, sense code, and subsense code .....................................................................3 - 1
3.2 Sense Data Analysis ....................................................................................................... 3 - 3

xiv C141-F028-01EN
3.2.1 Error information indicated with sense data ...................................................................3 - 3
3.2.2 Sense data (4-03-xx), (4-40-xx), (4-44-xx), and (4-C4-xx)............................................ 3 - 4
3.2.3 Sense data (1-1x-xx), (3-1x-xx), and (E-1D-00): Disk read error.................................. 3 - 4
3.2.4 Sense data (5-2x-xx), (5-3D-00), (5-90-00), (B-47-xx), (B-49-00), (B-4D-xx) and
(B-4E-00): fibre channel interface error.......................................................................... 3 - 4
3.2.5 Sense data (6-5C-02): Spindle synchronization error.................................................... 3 - 5
CHAPTER 4 REMOVAL AND REPLACEMENT PROCEDURES ................................4 - 1
4.1 Spare Parts......................................................................................................................4 - 1
4.2 Disk Drive Removal.......................................................................................................4 - 3
CHAPTER 5 PRINCIPLE OF OPERATION.....................................................................5 - 1
5.1 Outline............................................................................................................................5 - 1
5.2 Disk Drive Configuration............................................................................................... 5 - 1
5.2.1 Disks............................................................................................................................... 5 - 2
5.2.2 Heads..............................................................................................................................5 - 2
5.2.3 Spindle mechanism.........................................................................................................5 - 3
5.2.4 Actuator..........................................................................................................................5 - 3
5.2.5 Air filters ........................................................................................................................5 - 3
5.3 Circuit Configuration......................................................................................................5 - 3
5.4 Power-On Sequence ....................................................................................................... 5 - 6
5.5 Factory-Calibration.........................................................................................................5 - 7
5.6 Read/Write Circuit..........................................................................................................5 - 7
5.6.1 Head IC .......................................................................................................................... 5 - 7
5.6.2 Write circuit.................................................................................................................... 5 - 8
5.6.3 Read circuit.....................................................................................................................5 - 11
5.6.4 Write frequency change circuit.......................................................................................5 - 13
5.7 Servo Control .................................................................................................................5 - 16
5.7.1 Servo control circuit ....................................................................................................... 5 - 16
5.7.2 Servo format...................................................................................................................5 - 17
5.7.3 Data-side servo data format............................................................................................ 5 - 19
5.7.4 Spindle motor control.....................................................................................................5 - 20
5.7.5 Voice coil motor control.................................................................................................5 - 21
GLOSSARY................................................................................................................................ GL - 1

C141-F028-01EN xv
FIGURES
page
2.1 Revision label.................................................................................................................2 - 5
2.2 Indicating revision numbers ........................................................................................... 2 - 6
2.3 Test flowchart.................................................................................................................2 - 7
3.1 Format of extended sense data........................................................................................ 3 - 2
5.1 Head configuration.........................................................................................................5 - 2
5.2 Circuit configuration ...................................................................................................... 5 - 5
5.3 IDD operation sequence at power-on .............................................................................5 - 6
5.4 Block diagram of read-write circuit................................................................................5 - 9
5.5 Conversion example of 8/9 RLL code............................................................................5 - 10
5.6 Configuration diagram and frequency characteristics of electrical filter circuit..............5 - 12
5.7 Input/output waveforms of read circuit........................................................................... 5 - 13
5.8 Block diagram of servo control circuit ........................................................................... 5 - 16
5.9 Position of servo track....................................................................................................5 - 18
5.10 Servo frame ....................................................................................................................5 - 19

xvi C141-F028-01EN
TABLES
page
2.1 System-level field troubleshooting.................................................................................2 - 10
2.2 Disk drive troubleshooting............................................................................................. 2 - 11
3.1 Definition of sense data..................................................................................................3 - 3
4.1 List of Model Names/Product Numbers......................................................................... 4 - 2
5.1 Algorithm for write precompensation............................................................................. 5 - 10
5.2 MAA3182FC write frequency and recording density in each zone................................ 5 - 14
5.3 MAB30xxFC write frequency and recording density in each zone................................ 5 - 14
5.4 MAC30xxFC write frequency and recording density in each zone................................ 5 - 15

C141-F028-01EN 1 - 1
CHAPTER 1 SPECIFICATIONS AND EQUIPMENT
CONFIGURATION
1.1 Product Specifications
1.2 Installation Conditions
1.3 Power Supply Conditions
1.4 Connection Conditions
1.5 Settings
This chapter describes concerning the specifications and configuration of the intelligent disk drive.
The MAA31xxFC, MAB30xxFC and MAC30xxFC intelligent disk drives (IDD) are high performance,
large capacity 3.5 inch fixed magnetic disk drives with a built-in fibre channel controller. The interface
used to connect the MAA31xxFC, MAB30xxFC and MAC30xxFC intelligent disk drives with the host
system is compatible with the SCSI standard. It complies with the fibre channel PLDA standard
“NCITS TR-19 FIBRE CHANNEL PRIVATE LOOP SCSI DIRECT ATTACH (FC-PLDA)” which
includes all from the fibre channel physical hierarchy to the SCSI command protocol.
Details of the contents included in this chapter are included in the PRODUCT Manual, so please refer
to these items in the PRODUCT Manual corresponding to each item.
1.1 Product Specifications
Concerning the “Model and Product Number”, “Basic Specifications”, “Environmental
Specifications,” “Error Rate,” and “Reliability,” please refer to 2.1, “Hardware Specifications”
in the PRODUCT MANUAL (C141-E052EN).
1.2 Installation Conditions
Concerning the “External Dimensions,” “Installation Direction,” and “Cautions during
Installation,” please refer to 4.1, “Mounting Requirements” in the PRODUCT MANUAL
(C141-E052EN).
1.3 Power Supply Conditions
Concerning this item, please refer to 4.2, “Power Supply Requirements” in the PRODUCT
MANUAL (C141-E052EN).

1 - 2C141-F028-01EN
1.4 Connection Conditions
Concerning “Connectors for Connections,”, please refer to 4.3, “Connection Requirements” in
the PRODUCT MANUAL (C141-E052EN).
1.5 Settings
Concerning the “MAA31xxFC Series Setting Terminal,” “MAB30xxFC Series Setting
Terminal”, “MAC30xxFC Series Setting Terminal,” and “Setting Parameters,” please refer to
5.2, “Settings Terminals” and 5.4 “Confirming Operations after Installation and Preparation
for use” in the PRODUCT MANUAL (C141-E052EN).

C141-F028-01EN 2 - 1
CHAPTER 2 MAINTENANCE AND DIAGNOSIS
2.1 Maintenance Conditions
2.2 Operation Check
2.3 Troubleshooting Procedures
This chapter explains disk drive maintenance, diagnosis, operation check, and troubleshooting. This
chapter cover the following:
• Cautions during ordinary maintenance and troubleshooting
• Indication of maintenance levels (field and factory)
• Indication of device revision, and revision updating in the field
• Tools and test equipment required at each maintenance level
• General test method at each maintenance level
• Recommended troubleshooting procedures, and detection of possibly faulty parts
2.1 Maintenance Conditions
2.1.1 Precautions
Take the following precautions to prevent injury during maintenance and troubleshooting:
CAUTION
1. To avoid shocks, turn off the power before mounting or
removing a PCA.
2. To avoid injury, do not touch the mechanical assembly during
disk drive operation.
3. Do not use solvents to clean the disk drive.
Take the following precautions to prevent disk drive damage during maintenance and
troubleshooting: