Exabyte MAGNUM 1X7 LTO AUTOLOADER Instrucciones de operaciones Pagina 135
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Valorado. / 5. Basado en revisión del cliente
SEPTEMBER 2005 MAGNUM 1X7 LTO AUTOLOADER
14-1
14
READ BUFFER (3Ch)
14.1 ABOUT THIS COMMAND
The READ BUFFER command is used to copy the autoloader’s microcode
(also known as firmware) or transfer diagnostic data (also known as a dump)
across the SCSI bus to the initiator.
Note: The READ BUFFER command does not transfer the autoloader’s
configuration options or the MODE SELECT defaults to the initiator.
Bit
Byte
7 6 5 4 3 2 1 0
00 00111100
01 Reserved Mode
02 Buffer ID
03 (MSB)
Buffer Offset
(LSB)
04
05
06 (MSB)
Allocation Length
(LSB)
07
08
09 00 Reserved 00
- SCSI REFERENCE 1
- EFERENCE 1012975 2
- ONTACTING 3
- Contents 5
- SCSI REFERENCE 1012975 10
- ABOUT THIS MANUAL 15
- ! Important 16
- PRODUCT OVERVIEW 17
- HAPTER 1—PRODUCT OVERVIEW 18
- 1.2 CONTROL MODES 19
- 1.3 EMULATION MODES 20
- OVERVIEW OF THE 21
- AUTOLOADER AS A SCSI DEVICE 21
- Cartridge Access 23
- 2.3.1 SCSI BUS PHASES 24
- 2.3.2 SCSI MESSAGES 24
- 2.4 SCSI COMMAND PROTOCOL 26
- OMMAND PROTOCOL 27
- 2.4.2 SCSI COMMAND FORMAT 28
- 2.4.3 COMMAND STATUS 29
- 2.4.4 COMMAND FORMAT ERRORS 30
- EFERENCE PRELIMINARY 1012975 32
- IMPLEMENTING SCSI 33
- OPERATIONS 33
- ETTING ELEMENT ADDRESSES 35
- NVENTORY 36
- Send Volume Match 38
- SCSI Element Reservation 39
- Tape Drive Accessible 39
- 3.5 MOVING CARTRIDGES 40
- 3.6 RESERVING ELEMENTS 40
- 3.8 PERFORMING DIAGNOSTICS 41
- 3.9 COPYING MICROCODE 42
- INITIALIZE ELEMENT 43
- STATUS (07h) 43
- 4.4 COMMAND STATUS 46
- STATUS WITH RANGE (E7h) 47
- Range – Byte 01, Bit 0 48
- 5.4 COMMAND STATUS 50
- INQUIRY (12h) 53
- TANDARD INQUIRY DATA PAGE 55
- CODE 00h) 60
- Device Type Code – Byte 00 64
- Page Code – Byte 01 64
- 6.4 COMMAND STATUS 65
- LOG SELECT (4Ch) 67
- 7.3 COMMAND STATUS 68
- LOG SENSE (4Dh) 69
- 8.3.1 LOG PARAMETER FORMAT 73
- Parameter Length – Byte 03 74
- Parameter Value – Byte 04 81
- Command – Byte 04 82
- Fault Symptom Code – Byte 05 83
- 8.4 COMMAND STATUS 84
- CHAPTER 8—LOG SENSE (4Dh) 86
- MODE SELECT (15h) 87
- 9.2.1 PARAMETER LIST HEADER 89
- 9.3 COMMAND STATUS 99
- Reservation Conflict 100
- Check Condition 100
- CHAPTER 9—MODE SELECT (15h) 102
- MODE SENSE (1Ah) 103
- 10.3.1 PARAMETER LIST HEADER 105
- Parameter Length – Byte 01 106
- HAT THE AUTOLOADER RETURNS 107
- CODE 1Eh) 108
- Page Length – Byte 01 112
- MaxStor – Byte 4, Bit 4 112
- LCD Security – Byte 02, Bit 6 115
- Write Line 1 – Byte 02, Bit 3 116
- Auto – Byte 02, Bit 1 117
- FixEnbl – Byte 02, Bit 0 117
- 10.4 COMMAND STATUS 119
- CHAPTER 10—MODE SENSE (1Ah) 120
- MOVE MEDIUM (A5h) 121
- Invert – Byte 10, Bit 0 122
- 11.4 COMMAND STATUS 126
- OMMAND STATUS 127
- CHAPTER 11—MOVE MEDIUM (A5h) 128
- POSITION TO ELEMENT 129
- 12.3 COMMAND STATUS 130
- PREVENT/ALLOW MEDIUM 133
- REMOVAL (1Eh) 133
- 13.3 COMMAND STATUS 134
- READ BUFFER (3Ch) 135
- – Bytes 03 through 05 136
- ICROCODE TO THE INITIATOR 137
- THE INITIATOR 137
- 14.5 COMMAND STATUS 138
- CHAPTER 14—READ BUFFER (3Ch) 140
- READ ELEMENT STATUS 141
- VolTag – Byte 01, Bit 4 142
- CURDATA – Byte 06, Bit 1 142
- DVCID – Bytes 06, Bit 0 143
- S/N Request – Byte 11, Bit 7 143
- 15.3.1 ELEMENT STATUS HEADER 144
- 15.3.2 ELEMENT STATUS PAGE 145
- 15.3.3 ELEMENT DESCRIPTORS 146
- Except – Byte 02, Bit 2 147
- TORAGE ELEMENT DESCRIPTOR 149
- 15.4 COMMAND STATUS 156
- RECEIVE DIAGNOSTIC 157
- RESULTS (1Ch) 157
- Bytes 02 and 03 – Page Length 159
- Page Code – Byte 00 159
- Page Length – Bytes 02 and 03 159
- Supported Log Pages – Byte 04 159
- Self Test – Byte 27 160
- 16.4 COMMAND STATUS 161
- RELEASE (17h OR 57h) 163
- 17.1 ABOUT THIS COMMAND 164
- EN-BYTE CDB (PAGE CODE 57h) 165
- 17.3 COMMAND STATUS 166
- REQUEST SENSE (03h) 167
- Allocation Length – Byte 04 168
- 18.4 COMMAND STATUS 172
- REQUEST VOLUME 175
- ELEMENT ADDRESS (B5h) 175
- 19.1 ABOUT THIS COMMAND 176
- 19.3.2 ELEMENT STATUS PAGE 179
- 19.3.3 ELEMENT DESCRIPTORS 180
- 19.4 COMMAND STATUS 189
- RESERVE (16h OR 56h) 191
- 20.1 ABOUT THIS COMMAND 192
- Element – Byte 01, Bit 0 193
- LongID – Byte 01, Bit 1 194
- 20.3 COMMAND STATUS 195
- REZERO UNIT (01h) 197
- SEND DIAGNOSTIC (1Dh) 199
- Byte 01, Bit 2 – SelfTest 200
- Byte 01, Bit 1 – DevOffL 200
- Byte 01, Bit 0 – UnitOffL 200
- DDITIONAL DIAGNOSTIC DATA 201
- ELF TEST PAGE (PAGE CODE F0h) 202
- 22.4 COMMAND STATUS 203
- SEND VOLUME TAG (B6h) 205
- ARAMETER LIST 207
- 23.3 COMMAND STATUS 208
- TEST UNIT READY (00h) 211
- WRITE BUFFER (3Bh) 213
- 25.3 COMMAND STATUS 217
- ERROR CODES 219
- A.3 ERROR RECOVERY PROCEDURES 236
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