Maxtor ATLAS 10K III Manual Page 234

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SCSI Description
Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–167
5.32 REPORT DEVICE IDENTIFIER Command (A3h)
The REPORT DEVICE IDENTIFIER command requests that the device server send
device identification to the application client
Bit
Byte
7 6 5 4 3 2 1 0
0 Operation Code (A3h)
1 Reserved Service Action (05h)
2 – 5 Reserved
6 – 9
(MSB)
Allocation Length
(LSB)
10 Reserved
11 Control
Figure 5–80 REPORT DEVICE IDENTIFIER Command Descriptor Block — Data Format
Table 5–79 REPORT DEVICE IDENTIFIER Command Descriptor Block—Field Descriptions
Field Description
Service Action Must = 05h. Any other value forces Check Condition, Illegal
Request.
Allocation Length If the length is not sufficient to contain all of the parameter data,
the first portion of the data is returned, and this is not considered
to be an error. The actual length of the parameter data is
available in the Identifier Length field in the parameter data. If the
remainder of the parameter data is required, the application
client must send a new REPORT DEVICE IDENTIFIER command
with an Allocation Length field large enough to contain all of the
data.
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