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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:
PARA
SCSI COMMAND
6.1
ERASE
6.2
INQUIRY
6.3
LOAD /UNLOAD
6.4
LOCATE
6.5
LOG SELECT
6.6
LOG SENSE
6.7
MODE SELECT (6)
6.7
MODE SELECT (10)
6.8
MODE SENSE (6)
6.8
MODE SENSE (10)
6.9
PERSISTENT RESERVE IN
6.10
PERSISTENT RESERVE OUT
6.11
PREVENT ALLOW MEDIUM REMOVAL
6.12
READ
6.13
READ ATTRIBUTE
6.14
READ BLOCK LIMITS
6.15
READ BUFFER
6.16
READ POSITION
6.17
RECEIVE DIAGNOSTIC RESULTS
6.18
RELEASE UNIT (6)
6.18
RELEASE UNIT (10)
6.19
REPORT DENSITY SUPPORT
6.20
REPORT DEVICE IDENTIFIER
6.21
REPORT LUNS
REQUEST BLOCK ADDRESS (obsolete)
6.22
REQUEST SENSE
6.23
RESERVE UNIT (6)
6.23
RESERVE UNIT (10)
6.24
REWIND
SEEK BLOCK (obsolete)
6.25
SEND DIAGNOSTIC
6.26
SET DEVICE IDENTIFIER
6.27
SPACE
6.28
TEST UNIT READY
VERIFY (obsolete)
6.29
WRITE
6.30
WRITE ATTRIBUTE
6.31
WRITE BUFFER
6.32
WRITE FILEMARKS
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".
SONY AIT-3Ex drive SDX-800V series Ver.1.0
Table 6-1: SCSI Commands and Page Index
6.Command Specification
OP CODE
PAGE
19h
6-2
12h
6-3
1Bh
6-8
2Bh
6-10
4Ch
6-11
4Dh
6-13
15h
6-38
55h
6-38
1Ah
6-56
5Ah
6-56
5Eh
6-59
5Fh
6-62
1Eh
6-64
08h
6-65
8Ch
6-67
05h
6-71
3Ch
6-72
34h
6-75
1Ch
6-77
17h
6-79
57h
6-79
44h
6-81
A3h
6-85
A0h
6-86
03h
6-87
16h
6-95
56h
6-95
01h
6-97
1Dh
6-98
A4h
6-100
11h
6-101
00h
6-104
0Ah
6-105
8Dh
6-106
3Bh
6-108
10h
6-110
6-1
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