3 physical interface characteristics, 4 summary of scsi messages – Seagate Ultra 160 User Manual
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Parallel SCSI Interface Product Manual, Rev. A
1.3
Physical interface characteristics
The physical interface characteristics (cables, connectors, electrical descriptions, termination requirements,
etc.) for the drives covered by this Interface Manual are found in each individual drive’s Product Manual, since
these features are not the same for all drives.
1.4
Summary of SCSI messages
Following is an alphabetical summary of the SCSI messages described in this manual. Details are given in
Section 4.
Message Name
Hex Code
Page number
ABORT TASK
06
CLEAR QUEUE
0E
DISCONNECT
04
EXTENDED MESSAGE
01
IDENTIFY
80-FF
IGNORE WIDE RESIDUE
23
INITIATE RECOVERY
0F
Not described in this manual
INITIATOR DETECTED ERROR
05
MESSAGE PARITY ERROR
09
MESSAGE REJECT
07
MODIFY DATA POINTER
01, 05, 00
89 (extended message)
NO OPERATION
08
PARALLEL PROTOCOL REQUEST
01, 06, 04
QAS REQUEST
55
RELEASE RECOVERY
10
Not described in this manual
RESTORE POINTERS
03
SAVE DATA POINTERS
02
SYNCHRONOUS DATA TRANSFER REQUEST
01, 03, 01
97 (extended message)
TASK ATTRIBUTE MESSAGES
ACA (AUTO CONTINGENT
ALLEGIANCE)
24
HEAD OF QUEUE TAG
21
LINKED COMMAND COMPLETE
0A
ORDERED QUEUE TAG
22
SIMPLE QUEUE TAG
20
TASK COMPLETE
00
TASK MANAGEMENT MESSAGES
ABORT TASK
00
ABORT TASK SET
06
CLEAR ACA
16
CLEAR TASK SET
0E
LOGICAL UNIT RESET
17
TARGET RESET
0C
WIDE DATA TRANSFER REQUEST
01, 03
100 (extended message)