Quantum Instruments DLT 7000 User Manual
Page 171
SCSI Commands
Quantum DLT 7000 Tape System
5-67
MODE SELECT (6) / (10) Command (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 figure shows the format of the Mode Parameter List that is 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 5–33 MODE SELECT Mode Parameter List - Data Format