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Chapter 2 Emulated Medium Changer SCSI Commands
Request Volume Element Address (B5h)
92 Quantum DX-Series Software Interface Guide
• If the information is unknown the SValid bit is set to 0
•Invert
The Invert field is not supported and is set to 0.
• Source Storage Element Address
The Source Storage Element Address represents the address of the
last storage element that held the cartridge. The SValid field indicates
whether this information is valid.
The format of an element descriptor for an element of the data transfer
element type is shown in
table 61.
Table 61 Data Transfer
Element Descriptor
Bit/Byte 7 6 5 4 3 2 1 0
0
(MSB)
Element Address
1
(LSB)
2
Reserved (0h) Access Except
Rsrvd
(0)
Full
3
Reserved (00)
4
Additional Sense Code
5
Additional Sense Code Qualifier
6
Not Bus Rsrvd ID Valid
LU
Valid
Rsvd Logical Unit Number
7
SCSI Bus Address
8
Reserved (00h)
9
SValid
Invert
(0)
Reserved (00h)
10
Source Storage Element Address
11
12 - 47
Primary Volume Tag Information
(Field omitted if AVolTag = 0)
- ';6HULHV 1
- Contents 3
- Index 317 7
- Theory of Operation 27
- Medium Changer Elements 1 28
- Events 1 31
- Operational Sequences 1 32
- Chapter 1 Theory of Operation 33
- Operational Sequences 33
- Emulated Medium Changer 35
- Test Unit Ready 00h Mandatory 38
- Write Buffer 3Bh Optional 38
- Command Name OperCode Type 38
- Inquiry (12h) 2 42
- Identifier length (n-3) 49
- Identifier 49
- Log Sense (4Dh) 2 52
- Mode Select (15h) 2 58
- DLR(20h) 0 0 1 64
- ADU(20h) 1 0 1 64
- Mode Sense (1Ah) 2 65
- Mode Sense (1Ah) 71
- Page Length (02h) 74
- Reserved (00h) ADU EXB 74
- • AC-Auto Clean 75
- Move Medium (A5h) 2 76
- Position To Element (2Bh) 2 78
- Reserved (00h) 79
- Read Element Status (B8h) 2 80
- Read Element Status (B8h) 82
- • Volume Identification Field 88
- • Element Address 93
- • Drive Serial Number 96
- This field is 12 bytes 96
- 76543210 96
- Release (17h) 2 97
- Release (17h) 98
- Reservation ID 98
- Report LUNS (A0h) 2 99
- Request Sense (03h) 2 101
- Filemark 102
- Reserved 103
- Request Sense (03h) 104
- Reserved (00000000h) 112
- Vendor Unique (0000h) 112
- • Volume Sequence Number 113
- • Import Element 116
- Reserve (16h) 2 121
- Rezero Unit (01h) 2 125
- Send Diagnostic (1Dh) 2 126
- Send Diagnostic (1Dh) 127
- Table 66 Selftest Bit 127
- Definition 127
- Send Volume Tag (B6h) 2 128
- Reserved (0000h) 130
- Test Unit Ready (00h) 2 131
- Test Unit Ready (00h) 132
- Emulated DLT7000 SCSI 133
- Commands 133
- Table 70 Supported 134
- SCSI Commands 134
- Flag (0) Link (0) 138
- Table 75 Status 140
- Allocation Length 142
- SCSI Command Descriptions 3 146
- Erase (19h) 3 148
- Inquiry (12h) 3 150
- Inquiry (12h) 154
- Series system 166
- Load Unload (1Bh) 3 168
- Load Unload (1Bh) 169
- Locate (2Bh) 3 173
- Log Select (4Ch) 3 175
- Log Select (4Ch) 177
- Log Sense (4Dh) 3 184
- Field Name Description 185
- Log Sense (4Dh) 187
- Media Type 202
- Buffered Mode Speed 202
- Block Descriptor Length 202
- Tech Tip: RLEC is honored 216
- Mode Sense (6/10) (1Ah / 5Ah) 234
- Read (08h) 3 255
- Read (08h) 257
- Read Block Limits (05h) 3 258
- Read Buffer (3Ch) 3 260
- Read Position (34h) 3 264
- Release Unit (17h) 3 269
- Release Unit (17h) 270
- Reservation ID value as this 270
- Report LUNS (A0h) 3 271
- Request Sense (03h) 3 273
- Table 203 Supported 278
- Sense Keys 278
- Reserve Unit (16h) 3 280
- Reserve Unit (16h) 281
- Rewind (01h) 3 283
- Send Diagnostic (1Dh) 3 284
- Space (11h) 3 291
- Space (11h) 293
- Test Unit Ready (00h) 3 294
- Verify (13h) 3 295
- Verify (13h) 296
- Write (0Ah) 3 297
- Write (0Ah) 299
- Write Buffer (3Bh) 3 300
- Write Buffer (3Bh) 302
- Write Filemarks (10h) 3 303
- Write Filemarks (10h) 304
- Sense Key Values 305
- Appendix A Sense Key Values 306
- Media Changer Sense 307
- Code Values 307
- UNRECOGNIZED COMMAND 314
- COMMAND REGISTER ERROR 314
- DLT7000 Sense Code 315
- 24 87 Invalid Size 317
- Fibre Channel Topology 323
- Figure 3 Fibre 324
- Channel Topologies 324
- DX-Series Software 327
- Deviations 327
- Glossary 339
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