Quantum 10K II Manual do Utilizador Página 166

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SCSI Description
Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–99
5.15 MODE SELECT (10) Command (55h)
The MODE SELECT (10) command allows the initiator to modify certain mode
pages and thereby control some of the drive’s operational characteristics. Refer to
MODE SELECT (6) for additional descriptions. See Figure 5-39 for the data format
of the MODE SELECT (10) Command Descriptor Block. See MODE SELECT (6),
Table 5-44, for descriptions of the fields. See Figure 5-40 for the Mode Parameter
Header (10 Byte) — Data Format and Figure 5-44 for the Mode Parameter Block
Descriptor – Data Format. See Table 5-25 for mode parameter block field
descriptions.
Bit
Byte
7 6 5 4 3 2 1 0
0 Operation Code (55h)
1 Reserved PF Reserved SP
2 - 6 Reserved
7 - 8 Parameter List Length
9 Control
Figure 5–39 MODE SELECT (10) Command Descriptor Block – Data Format
Bit
Byte
7 6 5 4 3 2 1 0
0 - 1
(MSB)
Mode Data Length
(LSB)
2 Medium Type
3 Device-Specific Parameter
4 - 5 Reserved
6 - 7
(MSB)
Block Descriptor Length
(LSB)
Figure 5–40 Mode Parameter Header (10-Byte) — Data Format
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