Quantum 10K II Manual de usuario Pagina 114

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SCSI Description
Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–47
INQUIRY Command (12h) (continued)
5.11.2.9 Command Support Data Pages
An application client can request command support data by setting the CmdDt bit of
the INQUIRY command to 1, and specifying the SCSI operation code of the
Command Descriptor Block (CDB) for which it wants information.
Format of the command support data and definitions of the fields follow.
Bit
Byte
7 6 5 4 3 2 1 0
0 Peripheral Qualifier
= 0
Peripheral Device Type = 0
(Direct Access Device)
1 Reserved Support
2 ISO Version ECMA Version ANSI-Approved Version
3 – 4 Reserved
5 CDB Size (m – 5)
6 – m
(MSB)
CDB Usage Data
(LSB)
Figure 5–19 Command Support Data Page — Data Format
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