Hitachi HUS154530VLF400 User Manual

Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification

249  

The IDENTIFIER LENGTH 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 initially equals zero and is changed only by a successful SET DEVICE IDENTIFIER command.

The IDENTIFIER 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 persist through resets, power cycles, media format operations.

The Target return the same Identifier to all Initiators on all ports.

The execution of a REPORT DEVICE IDENTIFIER requires the enabling of a 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.