Optical Drive and Library SCSI-2 Command Reference

SCSI-2 Drive Command Set
Log Sense Command (4DH)
Chapter 2 2-111
SCSI-2 Drive Commands
Log Sense Command (4DH)
This command provides a means for the initiator to manage statistical
information maintained by the drive.
Allocation
Length The number of parameter bytes, including the Log Page
and the parameter structures.
Parameter
Pointer The Parameter Pointer field allows the initiator to
request parameter data beginning from a specific
parameter code to the maximum allocation length or
the maximum parameter code, whichever is less. Log
parameters within the specified log page are
transferred in ascending order according to parameter
code.
Table 2-100 Log Sense Command CDB
Byte 7 6 5 4 3 2 1 0
0 Operation Code (4DH)
1 Reserved (0)
2 PC (01H) Page Code (See Table 2-101 on page 2-112)
3 Reserved (0)
4 Reserved (0)
5 Parameter Pointer (MSByte)
(See Table 2-101 on page 2-112)
6 Parameter Pointer (LSByte)
7 Allocation Length (MSByte)
8 Allocation Length (LSByte)
9 Reserved (0) Flag Link