Sony SDX-800V/R User Manual
6.Command Specification
SONY AIT-3Ex drive SDX-800V series Ver.1.1
6-1
6. Command Specification
This clause includes all supported. Elements of this clause come from clauses 7, 8 and 9 of the T10/1236-D
(SPC-2), T10/1416-D (SPC-3), ANSI NCITS.335:2000 (SSC), SCSI interface specification.
There are different types of SCSI commands, each with a specific, required length (in bytes.) The majority of the
commands are 6 byte Group 0 commands. Group 1 & 2 commands are 10 bytes long. Note that the drive will wait
until the required number of bytes are transferred. At the termination of each command, the target sends a status
byte to the initiator. See the clause on Status for more details. The following is a list of the supported SCSI
Commands and page index:
(SPC-2), T10/1416-D (SPC-3), ANSI NCITS.335:2000 (SSC), SCSI interface specification.
There are different types of SCSI commands, each with a specific, required length (in bytes.) The majority of the
commands are 6 byte Group 0 commands. Group 1 & 2 commands are 10 bytes long. Note that the drive will wait
until the required number of bytes are transferred. At the termination of each command, the target sends a status
byte to the initiator. See the clause on Status for more details. The following is a list of the supported SCSI
Commands and page index:
Table 6-1: SCSI Commands and Page Index
PARA
SCSI COMMAND
OP CODE
PAGE
6.1 ERASE
19h
6-2
6.2 INQUIRY
12h
6-3
6.3 LOAD
/UNLOAD
1Bh
6-8
6.4 LOCATE
2Bh
6-10
6.5 LOG
SELECT
4Ch
6-11
6.6 LOG
SENSE
4Dh
6-13
6.7 MODE
SELECT
(6)
15h
6-38
6.7 MODE
SELECT
(10)
55h
6-38
6.8
MODE SENSE (6)
1Ah
6-56
6.8
MODE SENSE (10)
5Ah
6-56
6.9
PERSISTENT RESERVE IN
5Eh
6-59
6.10
PERSISTENT RESERVE OUT
5Fh
6-62
6.11
PREVENT ALLOW MEDIUM REMOVAL
1Eh
6-64
6.12 READ
08h
6-65
6.13 READ
ATTRIBUTE
8Ch
6-67
6.14
READ BLOCK LIMITS
05h
6-71
6.15 READ
BUFFER
3Ch
6-72
6.16 READ
POSITION
34h
6-75
6.17
RECEIVE DIAGNOSTIC RESULTS
1Ch
6-77
6.18
RELEASE UNIT (6)
17h
6-79
6.18
RELEASE UNIT (10)
57h
6-79
6.19
REPORT DENSITY SUPPORT
44h
6-81
6.20
REPORT DEVICE IDENTIFIER
A3h
6-85
6.21 REPORT
LUNS
A0h
6-86
REQUEST BLOCK ADDRESS (obsolete)
6.22 REQUEST
SENSE
03h
6-87
6.23
RESERVE UNIT (6)
16h
6-95
6.23
RESERVE UNIT (10)
56h
6-95
6.24 REWIND
01h
6-97
SEEK BLOCK (obsolete)
6.25 SEND
DIAGNOSTIC
1Dh
6-98
6.26
SET DEVICE IDENTIFIER
A4h
6-100
6.27 SPACE
11h
6-101
6.28
TEST UNIT READY
00h
6-104
VERIFY
(obsolete)
6.29 WRITE
0Ah
6-105
6.30 WRITE
ATTRIBUTE
8Dh
6-106
6.31 WRITE
BUFFER
3Bh
6-108
6.32 WRITE
FILEMARKS
10h
6-110
Note: In compliance with the SCSI specification, the unit will terminate the command with a CHECK CONDITION
status and the sense key will be set to ILLEGAL REQUEST when a reserved bit, byte, field or code is not ZERO.
The unit has an embedded SCSI controller interface and therefore is a single target, single logical unit device when
on the SCSI bus. The Obsolete for the drive is fixed and is set to ZERO. In order to be SCSI-2 or SCSI-3 compatible,
the following scheme is used to check the LUN:
SCSI-2 states that the LUN addressed by the host should appear in the IDENTIFY message sent to the target on
selection. LUN field inside of CDB is should be “obsolete”.
status and the sense key will be set to ILLEGAL REQUEST when a reserved bit, byte, field or code is not ZERO.
The unit has an embedded SCSI controller interface and therefore is a single target, single logical unit device when
on the SCSI bus. The Obsolete for the drive is fixed and is set to ZERO. In order to be SCSI-2 or SCSI-3 compatible,
the following scheme is used to check the LUN:
SCSI-2 states that the LUN addressed by the host should appear in the IDENTIFY message sent to the target on
selection. LUN field inside of CDB is should be “obsolete”.