Fujitsu MAW3073 SERIES User manual

C141-C011-01EN
MAW3073, MAW3147, MAW3300 NP/NC
SERIES
MAX3036, MAX3073, MAX3147 NP/NC
SERIES
DISK DRIVES
SCSI PHYSICAL INTERFACE SPECIFICATIONS

This Product is designed, developed and manufactured as contemplated for general use, including
without limitation, general office use, personal use and household use, but is not designed,
developed and manufactured as contemplated for use accompanying fatal risks or dangers that,
unless extremely high safety is secured, could lead directly to death, personal injury, severe
physical damage or other loss (hereinafter “High Safety Required Use”), including without
limitation, nuclear power core control, airplane control, air traffic control, mass transport operation
control, life support, weapon launching control. You shall not use this Product without securing the
sufficient safety required for the High Safety Required Use. If you wish to use this Product for
High Safety Required Use, please consult with our sale person in charge before such use
The contents of this manual is subject to change without prior notice.
All Rights Reserved. Copyright 2005 FUJITSU LIMITED

C141-C011 i
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)

ii C141-C011
Related Standards
Specifications and functions of products covered by this manual comply with the following
standards.
Standard (Text) No. Name Enacting Organization
T10/1365D Rev 10 Working Draft
American National Standard Information
Technology --- SCSI Parallel Interface 4
American National
Standards Institute
(ANSI)

C141-C011 iii
REVISION RECORD
Edition Date
published Revised contents
01 July, 2005 Initial release
Specification No.: C141-C011

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C141-C011 v
PREFACE
This manual explains the MAW3073/MAW3147/MAW3300/MAX3036/MAX3073/MAX3147 NP/NC
series 3-1/2" intelligent disk drives each having the built-in SCSI controller.
This manual details the specifications and functions of the Small Computer System Interface (SCSI) to
connect the above listed disk drives to the user system. Also, the manual details various SCSI command
specifications and the command processing functions, and provides the information required to creation of
host system software. This manual is intended to be used by the users who have the basic knowledge of
computer system operations.
The following lists the manual configuration and the contents of each chapter. The caution labels and
markings are also explained.
Manual Configuration and Contents
This manual consists of the following three chapters, and the terminologies and abbreviations sections.
Chapter 1 SCSI Bus
This chapter describes the configuration, physical and electrical requirements, interface protocol, and other
operations of the Small Computer System Interface (SCSI) which connects the
MAW3073/MAW3147/MAW3300/MAX3036/MAX3073/MAX3147 NP/NC series intelligent disk drives
to the user system.
Chapter 2 SCSI Messages
This chapter describes the type and explanation of messages defined for SCSI bus operations.
Chapter 3 ERROR Recovery
This chapter describes error recovery processing executed by the MAW3073/MAW3147/MAW3300/
MAX3036/MAX3073/MAX3147 NP/NC series intelligent disk drives in response to various errors on the
SCSI bus.
Glossary
This section explains the terminologies the reader must understand to read this manual.
Abbreviations
This section lists the abbreviated terms and their full words used in this manual.

vi C141-C011
CONVENTIONS
This manual uses the following conventions:
NOTE: NOTE indicates the information useful for the user to operate the system.
Important information
The important information is provided with the "Important" title. The important information text is
centered so that the reader can distinguish it from other manual texts. The following gives an example:
IMPORTANT
The IDD operates as a target (TARG) on the SCSI bus. The IDD is
called "TARG" in this chapter except when clear identification is
required.
Notations
A decimal value is indicated as it is in this manual.
A hexadecimal value is indicated in the X'17B9' or 17B9h or 17B9H notation.
A binary value is indicated in the notation similar to "010."
The disk drive model name has a different suffix depending on its SCSI electrical characteristics, capacity,
data format used during shipment and others. The following typical model name is used except when the
model needs to be distinguished. Also, the disk unit may be referred to as the "IDD" or "unit" in this
manual.

C141-C011 vii
Note 1: Model name
M AW 3 300 NC
Interface type NP: Low-Voltage Differential, 16-bit SCSI Ultra-320,
68-pin connector
NC: Low-Voltage Differential, 16-bit SCSI Ultra-320,
SCA-2 connector
Formatted capacity (1,000 MB units)
Disk size
Type AW: 1-inch height (10,025 rpm)
AX: 1-inch height (15,000 rpm)
Note 2: Typical model name
Type model name Model name
MAW3300 MAW3300NP, MAW3300NC
MAW3147 MAW3147NP, MAW3147NC
MAW3073 MAW3073NP, MAW3073NC
MAX3147 MAX3147NP, MAX3147NC
MAX3073 MAX3073NP, MAX3073NC
MAX3036 MAX3036NP, MAX3036NC
Requesting for User's Comments
Please use the User's Comment Form attached to the end of this manual to identify user comments including
error, inaccurate and misleading information of this manual. Contact to your Fujitsu representative for
additional comment forms if required.

viii C141-C011
MANUAL ORGANIZATION
Product/
Maintenance Manual
• General Description
• Specifications
• Data Format
• Installation Requirements
• Installation
• Diagnostics and Maintenance
• Error Analysis
• Principle of Operation
SCSI Physical
Interface
Specifications
• SCSI Bus
• SCSI Message
• Error Recovery
SCSI Logical
Interface
Specifications
• Command Processing
• Data Buffer Management
• Command Specifications
• Parameter Data Formats
• Sense Data and Error Recovery Methods
• Disk Media Management

C141-C011 ix
CONTENTS
page
CHAPTER 1 SCSI BUS ........................................................................................................................1-1
1.1 System Configuration.......................................................................................................................1-1
1.2 Interface Signal Definition ...............................................................................................................1-3
1.3 Physical Requirements......................................................................................................................1-7
1.3.1 Interface connector.........................................................................................................................1-8
1.3.2 Interface cable..............................................................................................................................1-15
1.4 Electrical Requirements..................................................................................................................1-17
1.4.1 Single-Ended type ........................................................................................................................1-17
1.4.2 Low-Voltage Differential type .....................................................................................................1-20
1.4.3 Internal terminal resistor and power supply for terminating resistor............................................1-23
1.4.4 Usage in 8-bit/16-bit transfer mode..............................................................................................1-25
1.4.5 Signal driving conditions..............................................................................................................1-26
1.5 Timing Rule....................................................................................................................................1-28
1.5.1 Timing value ................................................................................................................................1-28
1.5.2 Measurement point.......................................................................................................................1-42
1.6 Bus Phases......................................................................................................................................1-47
1.6.1 BUS FREE phase.........................................................................................................................1-48
1.6.2 ARBITRATION phase.................................................................................................................1-49
1.6.2.1 Normal ARBITRATION..............................................................................................................1-49
1.6.2.2 QAS ARBITRATION..................................................................................................................1-52
1.6.3 SELECTION phase......................................................................................................................1-54
1.6.4 RESELECTION phase.................................................................................................................1-58
1.6.5 INFORMATION TRANSFER phases.........................................................................................1-61
1.6.5.1 Asynchronous transfer mode........................................................................................................1-62
1.6.5.2 Synchronous mode .......................................................................................................................1-65
1.6.5.3 Paced transfer...............................................................................................................................1-75
1.6.5.4 Wide mode transfer (16-bit SCSI)................................................................................................1-86
1.6.6 COMMAND phase.......................................................................................................................1-87
1.6.7 DATA phase.................................................................................................................................1-87
1.6.8 STATUS phase.............................................................................................................................1-89
1.6.9 MESSAGE phase.........................................................................................................................1-89
1.6.10 Signal requirements concerning transition between bus phases ...................................................1-90
1.6.11 Time monitoring feature...............................................................................................................1-92

x C141-C011
1.7 Bus Conditions...............................................................................................................................1-93
1.7.1 ATTENTION condition...............................................................................................................1-93
1.7.2 RESET condition .........................................................................................................................1-96
1.8 Bus Phase Sequence.......................................................................................................................1-97
1.8.1 Bus Phase Sequence with Information Units Disabled.................................................................1-97
1.8.2 Phase sequences with information unit enabled .........................................................................1-105
1.8.2.1 Phase sequences for physical reconnection or selection without using attention condition........1-105
1.8.2.2 Phase sequences for selection using attention condition ............................................................1-106
1.9 SPI information units....................................................................................................................1-107
1.9.1 SPI information unit overview....................................................................................................1-107
1.9.2 Information unit transfer logical operations...............................................................................1-107
1.9.3 SPI information units..................................................................................................................1-113
1.9.3.1 SPI command information unit...................................................................................................1-113
1.9.3.2 SPI L_Q information unit...........................................................................................................1-116
1.9.3.3 SPI data information unit............................................................................................................1-119
1.9.3.4 SPI data stream information unit................................................................................................1-119
1.9.3.5 SPI status information unit.........................................................................................................1-121
1.10 SCAM...........................................................................................................................................1-124
1.10.1 SCAM operations.......................................................................................................................1-124
1.11 Ultra SCSI ....................................................................................................................................1-129
1.11.1 Outline........................................................................................................................................1-129
1.11.2 Device connection......................................................................................................................1-129
1.11.3 Electrical characteristics of SCSI parallel interface ...................................................................1-130
1.12 Low-Voltage Differential .............................................................................................................1-134
1.12.1 Ultra2-SCSI................................................................................................................................1-134
1.12.2 Ultra-160....................................................................................................................................1-134
1.12.3 Ultra-320....................................................................................................................................1-134
1.12.4 LVD driver characteristics .........................................................................................................1-135
1.12.5 LVD receiver characteristics......................................................................................................1-135
1.12.6 LVD capacitive loads.................................................................................................................1-137
1.12.7 System level requirements for LVD SCSI drivers and receivers................................................1-138
1.13 SCSI bus fairness..........................................................................................................................1-139
CHAPTER 2 SCSI MESSAGE.............................................................................................................2-1
2.1 Message System ...............................................................................................................................2-1
2.1.1 Message format ..............................................................................................................................2-1
2.1.2 Message type..................................................................................................................................2-3

C141-C011 xi
2.1.3 Message protocol ...........................................................................................................................2-4
2.2 SCSI Pointer.....................................................................................................................................2-5
2.3 Message Explanation........................................................................................................................2-8
2.3.1 TASK COMPLETE message: X'00'(T→I) ...................................................................................2-8
2.3.2 SAVE DATA POINTER message: X'02'(T→I)............................................................................2-8
2.3.3 RESTORE POINTERS message: X'03' (T→1) ............................................................................2-8
2.3.4 DISCONNECT message: X'04' (T→I)...........................................................................................2-8
2.3.5 INITIATOR DETECTED ERROR message: X'05'(I→T)............................................................2-9
2.3.6 ABORT TASK SET message: X'06' (I→T)..................................................................................2-9
2.3.7 MESSAGE REJECT message: X'07'(I↔T)................................................................................2-10
2.3.8 NO OPERATION message: X'08' (I→T) ...................................................................................2-10
2.3.9 MESSAGE PARITY ERROR message: X'09' (I→T).................................................................2-10
2.3.10 LINKED TASK COMPLETE message: X'0A'(T→I).................................................................2-11
2.3.11 TARGET RESET message: X'0C' (I→T) ...................................................................................2-11
2.3.12 ABORT TASK message: X'0D' (I→T).......................................................................................2-11
2.3.13 CLEAR TASK SET message: X'0E'(I→T).................................................................................2-11
2.3.14 CONTINUE TASK message: X'12' (I→T).................................................................................2-12
2.3.15 TARGET TRANSFER DISABLE message : X'13' (I→T)..........................................................2-12
2.3.16 LOGICAL UNIT RESET message : X'1C' (I→T).......................................................................2-13
2.3.17 Task attribute messages................................................................................................................2-13
2.3.18 IGNORE WIDE RESIDUE message: X'23' (T→I).....................................................................2-14
2.3.19 IDENTIFY message: X'80' to X'FF' (I↔T) ................................................................................2-15
2.3.20 SYNCHRONOUS DATA TRANSFER REQUEST message (I↔T)..........................................2-16
2.3.21 WIDE DATA TRANSFER REQUEST message (I↔T) .............................................................2-24
2.3.22 PARALLEL PROTOCOL REQUEST message (I↔T)...............................................................2-28
CHAPTER 3 ERROR RECOVERY....................................................................................................3-1
3.1 Error Conditions and Retry Procedure .............................................................................................3-1
3.2 Recovery Control..............................................................................................................................3-6
GLOSSARY ....................................................................................................................................GL - 1
ABBREVIATION.................................................................................................................................AB - 1

xii C141-C011
FIGURES
page
Figure 1.1 Example of SCSI configuration...........................................................................................1-2
Figure 1.2 Interface signals...................................................................................................................1-3
Figure 1.3 DATA BUS and SCSI ID....................................................................................................1-4
Figure 1.4 SCSI interface connector (IDD side) (16-bit SCSI).............................................................1-8
Figure 1.5 SCSI interface connector (cable side) (16-bit SCSI) ...........................................................1-9
Figure 1.6 Single-ended connector pin assignment (16-bit SCSI).......................................................1-10
Figure 1.7 Low-Voltage-Differential connector pin assignment (16-bit SCSI)...................................1-11
Figure 1.8 SCA-2 type, 16-bit SCSI interface connector (IDD side)..................................................1-12
Figure 1.9 SCA-2 Type, single-ended 16-bit SCSI connector signal assignment ...............................1-13
Figure 1.10 SCA Type, Low-Voltage-Differential connector signal assignment..................................1-14
Figure 1.11 Connection of interface cable ............................................................................................1-16
Figure 1.12 Single-Ended SCSI termination circuit-1...........................................................................1-17
Figure 1.13 Single-Ended SCSI termination circuit-2...........................................................................1-18
Figure 1.14 LVD SCSI termination circuit ...........................................................................................1-20
Figure 1.15 Circuit for mated indications..............................................................................................1-23
Figure 1.16 16-bit SCSI (not SCA2) terminating resistor circuit..........................................................1-24
Figure 1.17 Receiver de-skew parameters.............................................................................................1-38
Figure 1.18 Transmitter skew................................................................................................................1-40
Figure 1.19 Transmitter time asymmetry ..............................................................................................1-41
Figure 1.20 Fast-5/10 Measurement Point ............................................................................................1-42
Figure 1.21 Fast-20 Measurement Point ...............................................................................................1-43
Figure 1.22 LVD ST Data Transfer measurement point .......................................................................1-44
Figure 1.23 LVD DT Data Transfer measurement point.......................................................................1-45
Figure 1.24 LVD mode DT paced transfer easurement point................................................................1-46
Figure 1.25 BUS FREE phase...............................................................................................................1-48
Figure 1.26 ARBITRATION phase......................................................................................................1-51
Figure 1.27 QAS phase.........................................................................................................................1-54
Figure 1.28 SELECTION phase............................................................................................................1-57
Figure 1.29 RESELECTION phase ......................................................................................................1-60
Figure 1.30 INFORMATION TRANSFER phase (phase control).......................................................1-61
Figure 1.31 Transfer in asynchronous mode.........................................................................................1-64
Figure 1.32 ST transfer in synchronous mode.......................................................................................1-68
Figure 1.33 Data Group Pad field and pCRC field transfer ..................................................................1-74

C141-C011 xiii
Figure 1.34 DT DATA IN phase training pattern .................................................................................1-78
Figure 1.35 DT DATA OUT phase training pattern .............................................................................1-80
Figure 1.36 Usage of P1 to establish data valid and data invalid states................................................1-81
Figure 1.37 READ STREAM and WRITE FLOW...............................................................................1-84
Figure 1.38 Data sequence at data transfer............................................................................................1-87
Figure 1.39 Data transfer rate in synchronous mode.............................................................................1-89
Figure 1.40 Switching direction of transfer over data bus.....................................................................1-91
Figure 1.41 ATTENTION condition.....................................................................................................1-95
Figure 1.42 condition ...............................................................................................................................1-97
Figure 1.43 Bus phase sequence ..........................................................................................................1-98
Figure 1.44 Example of bus phase transition at execution of a single command ................................1-100
Figure 1.45 Phase sequences for physical reconnection or selection without
using attentioncondition with information unit transfers enabled ....................................1-105
Figure 1.46 Phase sequences for selection with attention condition
with information unit transfers enabled............................................................................1-106
Figure 1.47 SPI information unit sequence during initial connection .................................................1-109
Figure 1.48 SPI information unit sequence during data type transfers................................................1-110
Figure 1.49 SPI information unit sequence during data stream type transfers ....................................1-111
Figure 1.50 SPI information unit sequence during status transfers .....................................................1-112
Figure 1.51 State of level-1 SCAM target...........................................................................................1-126
Figure 1.52 State of level-2 SCAM target...........................................................................................1-127
Figure 1.53 Comparison of active negate current and voltage............................................................1-132
Figure 1.54 Single-ended test circuit...................................................................................................1-133
Figure 1.55 LVD transceiver architecture...........................................................................................1-135
Figure 1.56 Connection to the LVD receivers.....................................................................................1-136
Figure 1.57 Differential SCSI bus capacitive loading.........................................................................1-137
Figure 2.1 Message format....................................................................................................................2-2
Figure 2.2 SCSI pointer configuration ..................................................................................................2-7

xiv C141-C011
TABLES
page
Table 1.1 INFORMATION TRANSFER phase identification............................................................1-6
Table 1.2 Single-Ended maximum distance between terminators........................................................1-7
Table 1.3 LVD maximum distance between terminators.....................................................................1-8
Table 1.4 SE and LVD Transmission line impedance of cable at maximum
indicated data transfer rate.................................................................................................1-15
Table 1.5 Attenuation Requiaments for SCSI cable media................................................................1-15
Table 1.6 Output characteristic..........................................................................................................1-19
Table 1.7 Input characteristic.............................................................................................................1-19
Table 1.8 LVD DIFFSENS driver specifications...............................................................................1-21
Table 1.9 DIFFSENS receiver operating requirements......................................................................1-21
Table 1.10 Requirements for terminating resistor power supply..........................................................1-23
Table 1.11 Setting set up pin, 16-bit (wide)/8-bit (narrow) mode........................................................1-25
Table 1.12 Signal status at receiving end.............................................................................................1-26
Table 1.13 Signal driving method........................................................................................................1-26
Table 1.14 Bus phases and signal sources ...........................................................................................1-27
Table 1.15 SCSI bus control timing values..........................................................................................1-28
Table 1.16 SCSI bus data & information phase ST timing values.......................................................1-29
Table 1.17 Miscellaneous SCSI bus data & information phase DT timing values...............................1-29
Table 1.18 SCSI bus data & information phase DT timing values ......................................................1-30
Table 1.19 Receive SCSI bus data & information phase DT timing values.........................................1-31
Table 1.20 Parameters used for fast synchronous data transfer mode..................................................1-88
Table 1.21 Retry count setting for RESELECTION phase..................................................................1-92
Table 1.22 SPI command information unit........................................................................................1-114
Table 1.23 TASK ATTRIBUTE........................................................................................................1-114
Table 1.24 TASK MANAGEMENT FUNCTIONS..........................................................................1-115
Table 1.25 SPI L_Q information unit ................................................................................................1-116
Table 1.26 TYPE...............................................................................................................................1-117
Table 1.27 BIDI DIRECTION...........................................................................................................1-118
Table 1.28 SPI data information unit.................................................................................................1-119
Table 1.29 SPI data stream information unit......................................................................................1-120
Table 1.30 SPI status information unit...............................................................................................1-121
Table 1.31 PACKETIZED FAILURES field.....................................................................................1-122
Table 1.32 PACKETIZED FAILURE CODE ...................................................................................1-123

C141-C011 xv
Table 1.33 Maximum capacitance .....................................................................................................1-138
Table 1.34 System level requirements ...............................................................................................1-139
Table 2.1 SCSI message ......................................................................................................................2-3
Table 2.2 Extended message................................................................................................................2-4
Table 2.3 Definition of data transfer mode by message exchange.....................................................2-17
Table 2.4 Synchronous mode data transfer request setting................................................................2-19
Table 2.5 Transfer mode setup request from INIT to IDD ................................................................2-21
Table 2.6 Transfer mode setup request from IDD to INIT ................................................................2-23
Table 2.7 Data bus width defined by message exchange ...................................................................2-25
Table 2.8 Wide mode setting request from the INIT to the IDD .......................................................2-27
Table 2.9 Wide mode setting request from the IDD to the INIT .......................................................2-28
Table 2.10 TRANSFER PERIOD FACTOR field...............................................................................2-29
Table 2.11 Valid protocol options bit combinations............................................................................2-31
Table 2.12 PARALLEL PROTOCOL REQUEST message implied agreement..................................2-33
Table 3.1 Retry procedure for SCSI error............................................................................................3-7

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C141-C011 1-1
CHAPTER 1 SCSI BUS
1.1 System Configuration
1.2 Interface Signal Definition
1.3 Physical Requirements
1.4 Electrical Requirements
1.5 Timing Rule
1.6 Bus Phases
1.7 Bus Conditions
1.8 Bus Phase Sequence
1.9 SPI information units
1.10 SCAM
1.11 Ultra SCSI
1.12 Low-Voltage Differential
1.13 SCSI Bus Fairness
This chapter describes the configuration, physical and electrical characteristics, interface protocol, and
operations of SCSI buses.
Note:
The IDD operates as a target (TARG) on the SCSI bus. The IDD is called "TARG" in this
chapter except when clear identification is required.
1.1 System Configuration
Up to 16-bit SCSI series models can be connected to the system via the SCSI bus. Figure 1.1 gives
an example of multi-host system configuration.
Each SCSI device operates as an initiator (INIT) or a target (TARG). Only a single INIT and a
single TARG selected by this INIT can operate simultaneously on the SCSI bus.
The system configuration allows any combination of a SCSI device to operate as the INIT and a
SCSI device to operate as the TARG. Also, any device having both the INIT and TARG functions
can be used on the SCSI bus.
Each SCSI device is assigned a unique address (or SCSI ID). The SCSI ID corresponds to a bit
number of the SCSI data bus. While the INIT uses a logical unit number (LUN) to select an I/O
unit to be connected under TARG control.

1-2 C141-C011
Any SCSI ID of the IDD can be selected using the setup pins. However, the LUN is fixed to zero
(0). The SCSI ID can be 0 to 15.
Note:
The maximum number of SCSI devices and the maximum cable length are limited depending
on the selected SCSI data transfer mode and the SCSI transceiver type. Appropriate SCSI
devices and cable length must be determined for each system.
Figure 1.1 Example of SCSI configuration