Seagate Fibre Channel Interface User Manual
Page 309
Fibre Channel Interface Manual, Rev. D
295
Report Device Identifier Parameter List
This list contains the length (in bytes) of the parameter list and the logical unit’s identifier.
The execution of a Report Device Identifier command may require you to enable nonvolatile memory within the
logical unit. If the nonvolatile memory is not ready, the device server returns Check Condition status rather than
wait for the device to become ready. The sense key is set to Not Ready and the additional sense data is set as
described in the Test Unit Ready command. This information should allow the application client to determine
the action required to cause the device server to become ready.
Field definitions (listed alphabetically)
Identifier
This field contains a vendor-specific value. The value reported is the last value written by a successful Set Device Identifier
command. The value of the identifier is changed only by a Set Device Identifier command. The identifier value persists
through resets, power cycles, media format operations, and media replacement. The target returns the same identifier to all
initiators on all ports.
Identifier Length
This field specifies the length (in bytes) of the Identifier field. If the Allocation Length field in the CDB is too small to transfer
all of the identifier, the length is not adjusted to reflect the truncation. The identifier length is initially equal to zero and is
changed only by a successful Set Device Identifier command.
Table 199: Report Device Identifier parameter list
Bit
Byte
7
6
5
4
3
2
1
0
0
(MSB)
Identifier Length (n - 4)
1
2
3
(LSB)
4
:
n
Identifier
Table
number