HP Integrity NonStop H-Series - Manual (Page 108)

SCSI Request Sense
N1525A ACL Installation and User’s Guide — 527339-003
B- 4
Allocation Length
Information Bytes
This field is always set to zero.
Additional Sense Length
This specifies the number of additional sense bytes to follow. If the allocation length of
the command descriptor block is too small to transfer all of the additional sense bytes,
the additional sense length is not adjusted to reflect the truncation.
Command Specific Information Bytes
Command specific bytes are handled as device specific and can be logged by the
operating system on error conditions. This field is not used for any implemented
commands.
Additional Sense Code (ASC) and ASC Qualifier (ASCQ)
These two bytes provide additional information about the Sense Key and cause of the
CHECK CONDITION status.
ASC ASCQ Description
00h 00h NO ADDITIONAL SENSE INFORMATION
04h 00h LOGICAL UNIT NOT READY, CAUSE NOT REPORTABLE
04h 01h LOGICAL UNIT IS IN PROCESS OF BECOMING READY
04h 03h LOGICAL UNIT NOT READY, MANUAL INTERVENTION REQUIRED
04h 83h LOGICAL UNIT NOT READY, MAGAZINE DOOR OPEN
04h 8Dh LOGICAL UNIT NOT READY, FRONT PANEL MODE
04h 8Eh LOGICAL UNIT NOT READY, SEQUENTIAL MODE
0Ah 00h ERROR LOG OVERFLOW
15h 01h MECHANICAL POSITIONING ERROR
1Ah 00h PARAMETER LIST LENGTH ERROR
20h 00h INVALID COMMAND OPERATION CODE
21h 00h LOGICAL ADDRESS OUT OF RANGE
21h 01h INVALID ELEMENT ADDRESS
24h 00h INVALID FIELD IN CDB
25h 00h LOGICAL UNIT NOT SUPPORTED
26h 00h INVALID FIELD IN PARAMETER LIST
26h 01h PARAMETER NOT SUPPORTED
26h 02h PARAMETER VALUE INVALID
26h 04h INVALID RELEASE OF ACTIVE PERSISTENT RESERVATION