Product Manual - Hawk 2 Family SCSI-2 (Volume 1), Rev. B
39
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11.0
Interface requirements
11.1
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 Seagate SCSI Interface Product Manual, P/N
77738479. This section has tables that give the Hawk 2 Family drives version of the SCSI implementation de-
scribed in the 77738479 document.
11.2
SCSI interface messages supported
Table 11.2-1 following lists the messages supported by the SCSI-1 and SCSI-2 modes of the Hawk 2 Family
drives.
Table 11.2-1. SCSI messages supported by ST12400N/ND/NC family drives
Msg
Supported by:
Code
SCSI-1
SCSI-2Message Name
01h [1]
Y
Y
Extended messages
06h
Y
Y
Abort
0Dh
Y
Y
Abort tag
0Ch
Y
Y
Bus device reset
0Eh
N
Y
Clear queue
00h
Y
Y
Command complete
04h
Y
Y
Disconnect
80h-FFh
Y
Y
Identify
23h
N
N
Ignore wide residue (two bytes)
0Fh
N
N
Initiate recovery
05h
Y
Y
Initiator detected error
0Ah
N
N
Linked command complete [2]
0Bh
N
N
Linked command complete with flag [2]
09h
Y
Y
Message parity error
07h
Y
Y
Message reject
[1]
N
Y
Modify data pointer
08h
Y
Y
No operation
Queue tag messages (two bytes)
21h
N
Y
Head of queue tag
22h
N
Y
Ordered queue tag
20h
N
Y
Simple queue tag
10h
N
N
Release recovery
03h
Y
Y
Restore pointers
02h
Y
Y
Save data pointer
[1]
Y
Y
Synchronous data transfer req.
11h
N
N
Terminate I/O process
[1]
N
N
Wide data transfer request
Notes.
[1] Extended messages (see P/N 77738479 SCSI-2 Interface Product Manual).
[2] Customer Unique
Summary of Contents for Hawk 2 ST11900N
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