Quantum Instruments DLT 7000 - Manual (Page 248)

SCSI Commands
5-144 Quantum DLT 7000 Tape System
5.18 REQUEST SENSE COMMAND (03h)
The REQUEST SENSE command causes the tape drive to transfer detailed sense
data to the initiator.
Bit
Byte
7 6 5 4 3 2 1 0
0 Operation Code (03h)
1 Logical Unit Number Reserved
2 - 3 Reserved
4 Allocation Length
5 Unused Reserved Flag Link
Figure 5–72 REQUEST SENSE Command Descriptor Block - Data Format
Table 5–69 REQUEST SENSE Command Data - Field Descriptions
Field Name Description
Allocation Length This field specifies the maximum number of sense bytes to be
returned. The tape drive terminates the transfer when this number of
bytes has been transferred or when all available sense data has been
transferred to the host, whichever is less.