Quantum DLT 7000 Manuál stáhnout pdf (Strana 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

12 - n

Page(s) (Optional)

Figure 5–33 MODE SELECT Mode Parameter List - Data Format

1 2 ... 166 167 168 169 170 171 172 173 174 175 176 ... 311 312

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Quantum DLT 7000 Manuál Strana 171