Quantum DLT 8000 Product Manual page 191

LOG SENSE Command (4Dh) (continued)
Table 5–19 LOG SENSE Command Descriptor Block — Field Descriptions (continued)
Field Name
Page Code
Parameter Pointer
Allocation Length
Description
The Page Code field identifies which log page is being requested by the
initiator. If the page is not supported, then the command terminates with
a CHECK CONDITION status, sense key set to ILLEGAL REQUEST, and
additional sense code of INVALID FIELD IN CDB. Supported pages are:
Page Code
00h
02h
03h
07h
2Eh
32h
33h
3Eh
The Parameter Pointer field allows the host to specify at which parameter
within a log page the requested data should begin. For example, if a
page supports parameters 0 through 5, and the Parameter Pointer
contains 3, then only parameters 3, 4, and 5 are returned to the initiator.
Similarly, if a page supports parameters 1, 3, and 6, and the Parameter
Pointer contains 2, then only parameters 3 and 6 are returned to the
initiator.
If the Parameter Pointer is larger than the highest numbered parameter
on the page, then the target terminates the command with CHECK
CONDITION status, sense key set to ILLEGAL REQUEST, and additional
sense code set to INVALID FIELD IN CDB.
Note that parameters within a page are always returned in ascending
order according to parameter code.
If the target does not support a parameter code within this page then it
does not return any data associated with this parameter.
This field specifies the maximum number of bytes that the initiator
has allocated for returning data. The host uses this field to limit the
size of data transfers to its own internal buffer size.
Quantum DLT 8000 Tape System
Page Definition
List of Supported Pages Page
Write Error Counter Page
Read Error Counter Page
Last n Errors Events Page
TapeAlert Page
Compression Ratio Page
Device Wellness Log Page
Device Status Log Page
SCSI Commands
See Section
5.8.2
5.8.3
5.8.3
5.8.4
5.8.5
5.8.6
5.8.7
5.8.8
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