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Product Manual - Hawk 2 Family SCSI-2 (Volume 1), Rev. B
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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
01h [1]
Y
06h
Y
0Dh
Y
0Ch
Y
0Eh
N
00h
Y
04h
Y
80h-FFh
Y
23h
N
0Fh
N
05h
Y
0Ah
N
0Bh
N
09h
Y
07h
Y
[1]
N
08h
Y
21h
N
22h
N
20h
N
10h
N
03h
Y
02h
Y
[1]
Y
11h
N
[1]
N
Notes.
[1] Extended messages (see P/N 77738479 SCSI-2 Interface Product Manual).
[2] Customer Unique
SCSI-2Message Name
Y
Extended messages
Y
Abort
Y
Abort tag
Y
Bus device reset
Y
Clear queue
Y
Command complete
Y
Disconnect
Y
Identify
N
Ignore wide residue (two bytes)
N
Initiate recovery
Y
Initiator detected error
N
Linked command complete [2]
N
Linked command complete with flag [2]
Y
Message parity error
Y
Message reject
Y
Modify data pointer
Y
No operation
Queue tag messages (two bytes)
Y
Head of queue tag
Y
Ordered queue tag
Y
Simple queue tag
N
Release recovery
Y
Restore pointers
Y
Save data pointer
Y
Synchronous data transfer req.
N
Terminate I/O process
N
Wide data transfer request
39
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