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INQUIRY
0
1
2
3
4
5
LUN
This field is ignored.
Enable Vital Product Data
EVPD
0
1
44
Commands
I
tells the drive to return information about the basic operating
NQUIRY
parameters to the host. These parameters cannot be changed. The drive returns
Inquiry data to the host in a data-in phase.
Note
This command is immune from most of the pre-execution checks
that other commands must pass (for example, it can be executed
while the unit is reserved for another host). U
deferred error
subsequent commands.
Pre-Execution Checks:
Only the Illegal Field Check is performed before the command is executed.
If the EVPD bit is clear, the page code must be zero, otherwise
reported.
If the EVPD bit is set, the page code must be one of the supported page codes
for Inquiry data. Otherwise
Command Descriptor Block:
7
6
LUN
CDB Fields:
Normal inquiry data is returned.
A page of vital product data is returned.
conditions are preserved and reported on
is reported.
illegal request
5
4
3
Operation Code (12h)
Reserved (0)
Page Code
Reserved (0)
Allocation Length
Control
12h
and
nit attention
illegal request
2
1
0
EVPD
is
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