
SCSI Commands
Quantum DLT 8000 Tape System 5-73
MODE SELECT Command (6) / (10) (15h) / (55h) (continued)
Table 5–35 MODE SELECT (6) (10) Command Descriptor Block — Field Descriptions
Field Name Description
PF Page Format. The Page Format bit indicates that the data sent by the
host after the MODE SELECT header and block descriptors complies
with the definition of pages in the SCSI-2 specification. The SCSI-1
format will not be implemented so this bit must be set to 1. It is an
ILLEGAL REQUEST to have page parameters while the PF bit is 0.
SP Save Parameters. Must be 0. If set, this bit instructs the drive to save
all savable pages, and this is not supported on the tape drive.
5.9.1 Mode Parameter List
The figures below show the formats of the Mode Parameter List for MODE SELECT (6)
and MODE SELECT (10) passed by the initiator to the tape drive during the command’s
DATA OUT phase.
Bit
Byte
7 6 5 4 3 2 1 0
0 - 3 Mode Parameter Header
4 - 11 Mode Parameter Block Descriptor (Optional)
4 - 11
or
12 - n
Page(s) (Optional)
Figure 5–35 MODE SELECT (6) Mode Parameter List — Data Format
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