Seagate SCSI Interface Manuals

Manuals and User Guides for Seagate SCSI Interface. We have 1 Seagate SCSI Interface manual available for free PDF download: Product Manual

Seagate SCSI Interface Product Manual

Seagate SCSI Interface Product Manual (276 pages)

Brand: Seagate | Category: Network Hardware | Size: 4.94 MB

Table of Contents

Table of Contents
7
List of Figures
13
1 Interface Requirements

15
2 SCSI Bus

25
- Figure 3. SCSI ID Bits
  25
- SCSI Bus Signals
  26
  - Drive Select
    27
  - Signal Values
    27
  - OR-Tied Signals
    27
  - Signal Sources
    27
- SCSI Bus Timing
  27
- Fast Synchronous Transfer Option
  29
3 Logical Characteristics

31
- SCSI Bus Phases
  31
  - Bus Free Phase
    31
  - Arbitration Phase
    31
  - Selection Phase
    32
    
    All Systems
    32
    
    Arbitrating Systems
    32
    
    Nonarbitrating System
    32
    
    Arbitration and Selection under SCAM Protocol
    33
    
    Selection Time-Out Procedure
    33
    
    Single Initiator Option
    33
  - Reselection Phase
    33
    
    Reselection Procedure
    34
    
    Reselection Timeout Procedure
    34
  - Information Transfer Phases
    35
    
    Asynchronous Information Transfer
    35
  - Synchronous Data Transfer
    36
- Command Phase
  36
- Data Phase
  36
  - Data in Phase
    36
  - Data out Phase
    36
- Status Phase
  37
- Message Phase
  37
  - Message in Phase
    37
  - Message out Phase
    37
- Signal Restrictions between Phases
  37
- SCSI Bus Asynchronous Conditions
  37
  - Attention Condition
    37
  - Reset Condition
    38
- SCSI Bus Phase Sequences
  38
  - Nonarbitrating System
    38
  - Arbitrating Systems
    39
  - All Systems
    39
- SCSI Pointers
  39
- Message System Specification
  41
  - General Message Protocol
    41
  - Messages-General
    42
  - Message Details
    43
    
    One and Two Byte Messages
    43
    
    Initiator Detected Error
    45
    
    Message Parity Error
    46
    
    Message Reject
    46
    
    Modify Data Pointer
    46
    
    No Operation
    46
    
    Head of Queue Tag
    47
    
    Restore Pointers
    47
    
    Save Data Pointers
    47
    
    Synchronous Data Transfer Request
    47
    
    Extended Message (01H)
    48
    
    Target Transfer Disable
    48
    
    Figure 7. Wide SCSI Byte Ordering
    52
- Message Exception Conditions Handling
  54
- System
  56
4 SCSI Commands

57
- Command Implementation Requirements
  57
  - Reserved
    57
- Command Descriptor Block (CDB)
  57
  - Operation Code
    58
  - Logical Unit Number (LUN)
    59
  - Logical Block Address
    59
  - Relative Address Bit
    59
  - Transfer Length
    60
  - Control Field
    60
- Status
  61
- Command Examples
  63
  - Single Command Example
    63
  - Disconnect Example
    64
  - Figure 9. Disconnect Example
    64
- Timing Examples
  65
- Command Processing Considerations and Exception Conditions
  80
5 Command Descriptions

89
- Change Definition Command (40H)
  92
- Compare Command (39H)
  93
- Copy Command (18H)
  93
- Copy and Verify Command (3Ah)
  93
- Format Unit Command (04H)
  94
  - Format Unit Parameter Definition
    95
  - Format Unit Parameter List
    97
    
    Defect List Header
    97
    
    Initialization Pattern Descriptor
    98
    
    Defect List Formats
    99
- Inquiry Command (12H)
  101
  - Drive Standard Inquiry Data
    102
  - Vital Product Data
    105
  - Unit Serial Number Page (80H)
    106
  - Implemented Operating Definition Page (81H)
    106
  - Device Identification Page (83H)
    107
  - Firmware Numbers Page (C0H)
    110
  - Date Code Page (C1H)
    112
  - Jumper Settings Page (C2H)
    113
  - Device Behavior Page (C3H)
    115
- Lock-Unlock Cache Command (36H)
  115
- Log Select Command (4Ch)
  116
- Log Sense Command (4Dh)
  124
- Mode Select (6) Command (15H)
  126
  - Mode Select Parameter List
    126
  - Mode Select
    128
- Mode Select (10) Command (55H)
  130
  - Mode Select (10) Parameter List
    130
- Mode Sense (6) Command (1Ah)
  133
  - Mode Sense Page Descriptor Header
    136
  - Error Recovery Page (01H)
    137
  - Disconnect/Reconnect Control Page (02H)
    140
  - Format Parameters Page (03H)
    142
  - Rigid Drive Geometry Parameters Page (04H)
    144
  - Verify Error Recovery Page (07H)
    146
  - Caching Parameters Page (08H)
    148
  - Control Mode Page (0Ah)
    151
  - Notch Page (0Ch)
    153
  - Power Condition Page (0Dh or 1Ah)
    155
  - Xor Control Mode Page (10H)
    156
  - Unit Attention Parameters Page (00H)
    158
  - Informational Exceptions Control Page (1Ch)
    160
- Mode Sense (10) Command (5Ah)
  163
- Move Medium Command (A7H)
  166
- Persistent Reserve in Command (5Eh)
  167
  - Persistent Reserve in Parameter Data for Read Keys
    168
  - Persistent Reserve in Parameter Data for Read Reservations
    169
- Persistent Reserve out Command (5Fh)
  172
  - Persistent Reserve out Parameter List
    173
- Prefetch Command (34H)
  175
- Prevent/Allow Medium Removal Command (1Eh)
  175
- Read Command (08H)
  176
- Read Buffer Command (3Ch)
  178
- Read Capacity Command (25H)
  181
- Read Defect Data (10) Command (37H)
  183
- Read Defect Data (12) Command (B7H)
  185
- Read Element Status Command (B4H)
  186
- Read Extended Command (28H)
  187
- Read Long Command (3Eh)
  189
- Reassign Blocks Command (07H)
  190
  - Reassign Blocks Defect List
    191
- Rebuild Command (81H)
  192
  - Rebuild and Regenerate Parameter Data
    193
- Receive Diagnostic Results Command (1Ch)
  195
  - Supported Diagnostic
    197
  - Translate Address Page (40H)
    197
- Regenerate Command (82H)
  199
- Release (6) Command (17H)
  201
  - Logical Unit Release
    201
  - Extent Release
    201
  - Third Party Release
    201
- Release (10) Command (57H)
  202
- Report Luns Command (A0H)
  203
- Request Sense Command (03H)
  205
  - Extended Sense Data Format
    206
  - Sense Keys
    209
  - Extended Sense, Additional Sense and Additional Sense Qualifier Codes
    210
    
    Deferred Errors
    213
- Reserve (6) Command (16H)
  214
  - Logical Unit Reservation
    214
  - Extent Reservation
    214
  - Third Party Reservation
    215
  - Superseding Reservations
    215
  - Reservations
    215
- Reserve (10) Command (56H)
  216
- Rezero Unit Command (01H)
  217
- Search Data Equal Command (31H)
  217
- Search Data High Command (30H)
  217
- Search Data Low Command (32H)
  217
- Seek Command (0Bh)
  218
- Seek Extended Command (2Bh)
  219
- Send Diagnostic Command (1Dh)
  220
  - Supported Diagnostic Page-Send Diagnostic
    221
  - Translate Address Page-Send Diagnostic
    221
- Set Limits Command (33H)
  222
- Start/Stop Unit Command (1Bh)
  223
- Synchronize Cache Command (35H)
  224
- Test Unit Ready Command (00H)
  225
- Verify Command (2Fh)
  226
- Write Command (0Ah)
  227
  - Write and Verify Command (2Eh)
    228
  - Write Buffer Command (3Bh)
    229
    
    Buffer ID and Buffer Offset Fields (CDB Bytes 2-5)
    230
    
    Combined Header and Data Mode (0000B)
    230
    
    Download Microcode and Save Mode (0101B)
    230
    
    Download Microcode Mode (0100B)
    230
    
    Write Data Only Mode (0010B)
    230
    
    Byte Transfer Length (CDB Bytes 6, 7, and 8)
    231
    
    Download Microcode with Offsets (0110B)
    231
    
    Download Microcode with Offsets and Save Mode (0111B)
    231
    
    Write Data to Echo Buffer Mode (1010B)
    232
  - Write Extended Command (2Ah)
    233
  - Write Long Command (3Fh)
    235
  - Write same Command (41H)
    236
  - Xdread Command (52H)
    237
    
    Xor Commands
    237
  - Xdwrite Command (50H)
    239
  - Xdwrite Extended Command (80H)
    240
  - Xpwrite Command (51H)
    242
6 Seagate Technology Support Services

243
Appendix Ascsi Configured Automatically (SCAM)

247
- Figure 8. Single Command Example
  269

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