Fujitsu MBA3300 NP SERIES User manual

C141-C015-01EN
MBA3073, MBA3147, MBA3300 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 ©2007 FUJITSU LIMITED

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)
C141-C015

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-C015

REVISION RECORD
Edition Date
published Revised contents
01 March, 2007 Initial release
Specification No.: C141-C015
C141-C015

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PREFACE
This manual explains the MBA3073/MBA3147/MBA3300 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
MBA3073/MBA3147/MBA3300 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 MBA3073/MBA3147/MBA3300 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.
C141-C015 1

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 HDD operates as a target (TARG) on the SCSI bus. The HDD 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 "HDD" or "unit" in this
manual.
2 C141-C015

Note 1: Model name
M BA 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 BA: 1-inch height (15,000 rpm)
Note 2: Typical model name
Type model name Model name
MBA3300 MBA3300NP, MBA3300NC
MBA3147 MBA3147NP, MBA3147NC
MBA3073 MBA3073NP, MBA3073NC
*: One gigabyte (GB) = one billion bytes; accessible capacity will be less and actual capacity depends on
the operating environment and formatting.
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.
C141-C015 3

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
4 C141-C015

CONTENTS
page
CHAPTER 1 SCSI BUS .........................................................................................................................13
1.1 System Configuration........................................................................................................................13
1.2 Interface Signal Definition ................................................................................................................15
1.3 Physical Requirements ......................................................................................................................19
1.3.1 Interface connector..........................................................................................................................20
1.3.2 Interface cable .................................................................................................................................27
1.4 Electrical Requirements.....................................................................................................................29
1.4.1 Single-Ended type ...........................................................................................................................29
1.4.2 Low-Voltage Differential type........................................................................................................32
1.4.3 Internal terminal resistor and power supply for terminating resistor ..............................................35
1.4.4 Usage in 8-bit/16-bit transfer mode.................................................................................................37
1.4.5 Signal driving conditions ................................................................................................................38
1.5 Timing Rule.......................................................................................................................................40
1.5.1 Timing value ...................................................................................................................................40
1.5.2 Measurement point..........................................................................................................................54
1.6 Bus Phases.........................................................................................................................................59
1.6.1 BUS FREE phase ............................................................................................................................60
1.6.2 ARBITRATION phase....................................................................................................................61
1.6.2.1 Normal ARBITRATION.................................................................................................................61
1.6.2.2 QAS ARBITRATION.....................................................................................................................64
1.6.3 SELECTION phase.........................................................................................................................66
1.6.4 RESELECTION phase....................................................................................................................70
1.6.5 INFORMATION TRANSFER phases............................................................................................73
1.6.5.1 Asynchronous transfer mode...........................................................................................................74
1.6.5.2 Synchronous mode..........................................................................................................................77
1.6.5.3 Paced transfer..................................................................................................................................87
1.6.5.4 Wide mode transfer (16-bit SCSI)...................................................................................................98
1.6.6 COMMAND phase .........................................................................................................................99
1.6.7 DATA phase....................................................................................................................................99
1.6.8 STATUS phase..............................................................................................................................101
1.6.9 MESSAGE phase..........................................................................................................................101
1.6.10 Signal requirements concerning transition between bus phases....................................................102
1.6.11 Time monitoring feature................................................................................................................104
C141-C015 5

1.7 Bus Conditions ................................................................................................................................105
1.7.1 ATTENTION condition................................................................................................................105
1.7.2 RESET condition...........................................................................................................................108
1.8 Bus Phase Sequence........................................................................................................................109
1.8.1 Bus Phase Sequence with Information Units Disabled.................................................................109
1.8.2 Phase sequences with information unit enabled............................................................................117
1.8.2.1 Phase sequences for physical reconnection or selection without using attention condition..........117
1.8.2.2 Phase sequences for selection using attention condition...............................................................118
1.9 SPI information units.......................................................................................................................119
1.9.1 SPI information unit overview......................................................................................................119
1.9.2 Information unit transfer logical operations..................................................................................119
1.9.3 SPI information units.....................................................................................................................125
1.9.3.1 SPI command information unit .....................................................................................................125
1.9.3.2 SPI L_Q information unit..............................................................................................................128
1.9.3.3 SPI data information unit ..............................................................................................................131
1.9.3.4 SPI data stream information unit...................................................................................................131
1.9.3.5 SPI status information unit............................................................................................................133
1.10 SCAM..............................................................................................................................................136
1.10.1 SCAM operations..........................................................................................................................136
1.11 Ultra SCSI .......................................................................................................................................141
1.11.1 Outline...........................................................................................................................................141
1.11.2 Device connection.........................................................................................................................141
1.11.3 Electrical characteristics of SCSI parallel interface ......................................................................142
1.12 Low-Voltage Differential................................................................................................................146
1.12.1 Ultra2-SCSI...................................................................................................................................146
1.12.2 Ultra-160 .......................................................................................................................................146
1.12.3 Ultra-320 .......................................................................................................................................146
1.12.4 LVD driver characteristics ............................................................................................................147
1.12.5 LVD receiver characteristics.........................................................................................................147
1.12.6 LVD capacitive loads....................................................................................................................149
1.12.7 System level requirements for LVD SCSI drivers and receivers ..................................................150
1.13 SCSI bus fairness.............................................................................................................................151
CHAPTER 2 SCSI MESSAGE............................................................................................................153
2.1 Message System ..............................................................................................................................153
2.1.1 Message format .............................................................................................................................153
2.1.2 Message type.................................................................................................................................155
6 C141-C015

2.1.3 Message protocol...........................................................................................................................156
2.2 SCSI Pointer....................................................................................................................................157
2.3 Message Explanation.......................................................................................................................160
2.3.1 TASK COMPLETE message: X'00'(T→I) ..................................................................................160
2.3.2 SAVE DATA POINTER message: X'02'(T→I) ..........................................................................160
2.3.3 RESTORE POINTERS message: X'03' (T→I)............................................................................160
2.3.4 DISCONNECT message: X'04' (T→I) .........................................................................................160
2.3.5 INITIATOR DETECTED ERROR message: X'05'(I→T)...........................................................161
2.3.6 ABORT TASK SET message: X'06' (I→T).................................................................................161
2.3.7 MESSAGE REJECT message: X'07'(I↔T).................................................................................162
2.3.8 NO OPERATION message: X'08' (I→T) ....................................................................................162
2.3.9 MESSAGE PARITY ERROR message: X'09' (I→T) .................................................................162
2.3.10 LINKED TASK COMPLETE message: X'0A'(T→I)..................................................................163
2.3.11 TARGET RESET message: X'0C' (I→T)....................................................................................163
2.3.12 ABORT TASK message: X'0D' (I→T)........................................................................................163
2.3.13 CLEAR TASK SET message: X'0E'(I→T)..................................................................................163
2.3.14 CONTINUE TASK message: X'12' (I→T)..................................................................................164
2.3.15 TARGET TRANSFER DISABLE message : X'13' (I→T)...........................................................164
2.3.16 LOGICAL UNIT RESET message : X'1C' (I→T)........................................................................165
2.3.17 Task attribute messages.................................................................................................................165
2.3.18 IGNORE WIDE RESIDUE message: X'23' (T→I) .....................................................................166
2.3.19 IDENTIFY message: X'80' to X'FF' (I↔T) .................................................................................167
2.3.20 SYNCHRONOUS DATA TRANSFER REQUEST message (I↔T)...........................................168
2.3.21 WIDE DATA TRANSFER REQUEST message (I↔T)..............................................................176
2.3.22 PARALLEL PROTOCOL REQUEST message (I↔T)................................................................180
CHAPTER 3 ERROR RECOVERY...................................................................................................187
3.1 Error Conditions and Retry Procedure ............................................................................................187
3.2 Recovery Control.............................................................................................................................192
GLOSSARY .........................................................................................................................................195
ABBREVIATION......................................................................................................................................197
C141-C015 7

FIGURES
page
Figure 1.1 Example of SCSI configuration..............................................................................................14
Figure 1.2 Interface signals......................................................................................................................15
Figure 1.3 DATA BUS and SCSI ID.......................................................................................................16
Figure 1.4 SCSI interface connector (HDD side) (16-bit SCSI)..............................................................20
Figure 1.5 SCSI interface connector (cable side) (16-bit SCSI) ..............................................................21
Figure 1.6 Single-ended connector pin assignment (16-bit SCSI)...........................................................22
Figure 1.7 Low-Voltage-Differential connector pin assignment (16-bit SCSI).......................................23
Figure 1.8 SCA-2 type, 16-bit SCSI interface connector (HDD side).....................................................24
Figure 1.9 SCA-2 Type, single-ended 16-bit SCSI connector signal assignment....................................25
Figure 1.10 SCA Type, Low-Voltage-Differential connector signal assignment......................................26
Figure 1.11 Connection of interface cable .................................................................................................28
Figure 1.12 Single-Ended SCSI termination circuit-1 ...............................................................................29
Figure 1.13 Single-Ended SCSI termination circuit-2 ...............................................................................30
Figure 1.14 LVD SCSI termination circuit ................................................................................................32
Figure 1.15 Circuit for mated indications...................................................................................................35
Figure 1.16 16-bit SCSI (not SCA2) terminating resistor circuit...............................................................36
Figure 1.17 Receiver de-skew parameters..................................................................................................50
Figure 1.18 Transmitter skew.....................................................................................................................52
Figure 1.19 Transmitter time asymmetry ...................................................................................................53
Figure 1.20 Fast-5/10 Measurement Point.................................................................................................54
Figure 1.21 Fast-20 Measurement Point ....................................................................................................55
Figure 1.22 LVD ST Data Transfer measurement point............................................................................56
Figure 1.23 LVD DT Data Transfer measurement point............................................................................57
Figure 1.24 LVD mode DT paced transfer measurement point .................................................................58
Figure 1.25 BUS FREE phase....................................................................................................................60
Figure 1.26 ARBITRATION phase ...........................................................................................................63
Figure 1.27 QAS phase ..............................................................................................................................66
Figure 1.28 SELECTION phase.................................................................................................................69
Figure 1.29 RESELECTION phase............................................................................................................72
Figure 1.30 INFORMATION TRANSFER phase (phase control)............................................................73
Figure 1.31 Transfer in asynchronous mode..............................................................................................76
Figure 1.32 ST transfer in synchronous mode ...........................................................................................80
Figure 1.33 Data Group Pad field and pCRC field transfer.......................................................................86
8 C141-C015

Figure 1.34 DT DATA IN phase training pattern ......................................................................................90
Figure 1.35 DT DATA OUT phase training pattern ..................................................................................92
Figure 1.36 Usage of P1 to establish data valid and data invalid states.....................................................93
Figure 1.37 READ STREAM and WRITE FLOW....................................................................................96
Figure 1.38 Data sequence at data transfer.................................................................................................99
Figure 1.39 Data transfer rate in synchronous mode................................................................................101
Figure 1.40 Switching direction of transfer over data bus .......................................................................103
Figure 1.41 ATTENTION condition........................................................................................................107
Figure 1.42 RESET condition..................................................................................................................109
Figure 1.43 Bus phase sequence (1 of 2) .................................................................................................110
Figure 1.43 Bus phase sequence (2 of 2) .................................................................................................111
Figure 1.44 Example of bus phase transition at execution of a single command (1 of 5)........................112
Figure 1.44 Example of bus phase transition at execution of a single command (2 of 5)........................113
Figure 1.44 Example of bus phase transition at execution of a single command (3 of 5)........................114
Figure 1.44 Example of bus phase transition at execution of a single command (4 of 5)........................115
Figure 1.44 Example of bus phase transition at execution of a single command (5 of 5)........................116
Figure 1.45 Phase sequences for physical reconnection or selection without using attention
condition with information unit transfers enabled................................................................117
Figure 1.46 Phase sequences for selection with attention condition with information unit
transfers enabled ...................................................................................................................118
Figure 1.47 SPI information unit sequence during initial connection......................................................121
Figure 1.48 SPI information unit sequence during data type transfers ....................................................122
Figure 1.49 SPI information unit sequence during data stream type transfers.........................................123
Figure 1.50 SPI information unit sequence during status transfers..........................................................124
Figure 1.51 State of level-1 SCAM target................................................................................................138
Figure 1.52 State of level-2 SCAM target................................................................................................139
Figure 1.53 Comparison of active negate current and voltage.................................................................144
Figure 1.54 Single-ended test circuit........................................................................................................145
Figure 1.55 LVD transceiver architecture................................................................................................147
Figure 1.56 Connection to the LVD receivers .........................................................................................148
Figure 1.57 Differential SCSI bus capacitive loading..............................................................................149
Figure 2.1 Message format.....................................................................................................................154
Figure 2.2 SCSI pointer configuration...................................................................................................159
C141-C015 9

TABLES
page
Table 1.1 INFORMATION TRANSFER phase identification...............................................................18
Table 1.2 Single-Ended maximum distance between terminators ..........................................................19
Table 1.3 LVD maximum distance between terminators........................................................................20
Table 1.4 SE and LVD Transmission line impedance of cable at maximum indicated data
transfer rate.............................................................................................................................27
Table 1.5 Attenuation Requiaments for SCSI cable media.....................................................................27
Table 1.6 Output characteristic...............................................................................................................31
Table 1.7 Input characteristic..................................................................................................................31
Table 1.8 LVD DIFFSENS driver specifications ...................................................................................33
Table 1.9 DIFFSENS receiver operating requirements ..........................................................................33
Table 1.10 Requirements for terminating resistor power supply..............................................................35
Table 1.11 Setting set up pin, 16-bit (wide)/8-bit (narrow) mode ............................................................37
Table 1.12 Signal status at receiving end..................................................................................................38
Table 1.13 Signal driving method.............................................................................................................38
Table 1.14 Bus phases and signal sources ................................................................................................39
Table 1.15 SCSI bus control timing values...............................................................................................40
Table 1.16 SCSI bus data & information phase ST timing values............................................................41
Table 1.17 Miscellaneous SCSI bus data & information phase DT timing values...................................41
Table 1.18 SCSI bus data & information phase DT timing values...........................................................42
Table 1.19 Receive SCSI bus data & information phase DT timing values.............................................43
Table 1.20 Parameters used for fast synchronous data transfer mode....................................................100
Table 1.21 Retry count setting for RESELECTION phase.....................................................................104
Table 1.22 SPI command information unit.............................................................................................126
Table 1.23 TASK ATTRIBUTE.............................................................................................................126
Table 1.24 TASK MANAGEMENT FUNCTIONS...............................................................................127
Table 1.25 SPI L_Q information unit .....................................................................................................128
Table 1.26 TYPE ....................................................................................................................................129
Table 1.27 BIDI DIRECTION................................................................................................................130
Table 1.28 SPI data information unit......................................................................................................131
Table 1.29 SPI data stream information unit ..........................................................................................132
Table 1.30 SPI status information unit....................................................................................................133
Table 1.31 PACKETIZED FAILURES field .........................................................................................134
Table 1.32 PACKETIZED FAILURE CODE ........................................................................................135
10 C141-C015

Table 1.33 Maximum capacitance ..........................................................................................................150
Table 1.34 System level requirements ....................................................................................................151
Table 2.1 SCSI message........................................................................................................................155
Table 2.2 Extended message.................................................................................................................156
Table 2.3 Definition of data transfer mode by message exchange........................................................169
Table 2.4 Synchronous mode data transfer request setting...................................................................171
Table 2.5 Transfer mode setup request from INIT to HDD..................................................................173
Table 2.6 Transfer mode setup request from HDD to INIT..................................................................175
Table 2.7 Data bus width defined by message exchange......................................................................177
Table 2.8 Wide mode setting request from the INIT to the HDD.........................................................179
Table 2.9 Wide mode setting request from the HDD to the INIT.........................................................180
Table 2.10 TRANSFER PERIOD FACTOR field..................................................................................181
Table 2.11 Valid protocol options bit combinations...............................................................................183
Table 2.12 PARALLEL PROTOCOL REQUEST message implied agreement....................................185
Table 3.1 Retry procedure for SCSI error.............................................................................................193
C141-C015 11

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C141-C015 13
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 HDD operates as a target (TARG) on the SCSI bus. The HDD 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.

14 C141-C015
Any SCSI ID of the HDD 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.
HDD
Figure 1.1 Example of SCSI configuration