Seagate Elite 23 ST423451N, Product Manual

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Elite 23 Product Manual, Rev. A 39
9.0 Interface requirements
This section describes Elite 23 interface requirements.
9.1 General description
This section partially describes the interface requirements as implemented on the drives. The major portion
of the interface requirements /implementation is described in the
SCSI Interface Product Manual
, part
number 77738479. This section has tables that give the Elite 23 family drive’s version of the SCSI implementa-
tion described in the
SCSI Interface Product Manual
.
9.2 SCSI interface messages supported
Table 5 lists the messages supported by the SCSI-2 and SCSI-3 modes of the Elite 23 family drives.
Notes.
[1] Extended message (refer to the SCSI Interface Product Manual , part number 77738479).
[2] Not applicable to “N” models.
Table 5: SCSI messages supported by Elite 23 family drives
Message Name Message Code
Supported by
SCSI-2
Abort 06h Y
Abort-tag 0Dh Y
Bus device reset 0Ch Y
Clear queue 0Eh Y
Command complete 00h Y
Continue I/O process 12h Y
Disconnect 04h Y
Extended messages 01h[1] Y
Identify 80h-FFh Y
Ignore wide residue (two bytes) 23h N
Initiate recovery 0Fh N
Initiator detected error 05h Y
Linked command complete 0Ah Y
Linked command complete with flag 0Bh Y
Message parity error 09h Y
Message reject 07h Y
Modify data pointer [1] N
No operation 08h Y
Queue tag messages (two bytes)
Head of queue tag 21h Y
Ordered queue tag 22h Y
Simple queue tag 20h Y
Release recovery 10h N
Restore pointers 03h Y
Save data pointer 02h Y
Synchronous data transfer req. [1] Y
Target transfer disable 13h Y
Terminate I/O process 11h Y
Wide data transfer request [1] [2] Y