Quantum Instruments DLT 7000 User Manual
Page 172
SCSI Commands
5-68
Quantum DLT 7000 Tape System
MODE SELECT (6) / (10) Command (15h) / (55h) (continued)
Table 5–36 MODE SELECT Mode Parameter List - Field Descriptions
Field Name
Description
Mode Parameter
Header
4 bytes in length, contains information about the remainder of the Parameter
List and is always present (see Figure 5-34 and Table 5-37).
Mode Parameter
Block Descriptor
8 bytes in length, allows the initiator to set the drive’s Logical Block Size and
number of Descriptor Logical Block Addresses (see Figure 5-35 and Table 5-
38).
Page(s)
The Page Code(s) of the pages that are a part of this MODE SELECT
command.
5.9.1.1 Mode Parameter Header
The figure and table that follow provide an illustration and description of the
fields that make up the MODE SELECT command’s Mode Parameter header.
Bit
Byte
7
6
5
4
3
2
1
0
0
Reserved
1
Media Type
2
Ignored
Buffered Mode
Speed
3
Block Descriptor Length (08h)
Figure 5–34 MODE SELECT Mode Parameter Header - Data Format