Sony SDX-800V/R manual Scsi Commands and Page Index, Para Scsi Command OP Code, Load /UNLOAD

6.Command Specification

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:

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
6.22	REQUEST BLOCK ADDRESS (obsolete)	03h	6-87
	REQUEST SENSE
6.23	RESERVE UNIT (6)	16h	6-95
6.23	RESERVE UNIT (10)	56h	6-95
6.24	REWIND	01h	6-97
6.25	SEEK BLOCK (obsolete)	1Dh	6-98
	SEND DIAGNOSTIC
6.26	SET DEVICE IDENTIFIER	A4h	6-100
6.27	SPACE	11h	6-101
6.28	TEST UNIT READY	00h	6-104
6.29	VERIFY (obsolete)	0Ah	6-105
	WRITE
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”.

SONY AIT-3Ex drive SDX-800V series Ver.1.1 6-1