Technical information

HGST Ultrastar C15K600 Hard Disk Drive Specification
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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.