Technical information

HGST Ultrastar C15K600 Hard Disk Drive Specification
175
Allegiance (CA condition) is pending. Those blocked tasks are allowed to resume execution in a
normal fashion after the CA condition is cleared.
- 01b: Specifies that all tasks from all Initiators are aborted when the Target returns Check Condition
status. A unit attention condition will be generated for each Initiator that had commands in the queue
except for the Initiator that received the Check Condition status. The sense key will be set to Unit
Attention and the additional sense code will be set to Commands Cleared by Another Initiator.
- 10b: Reserved
- 11b: Blocked tasks in the task set belonging to the Initiator to which a Check Condition status is
sent shall be aborted when the status is sent.
- DQue (Disable Queuing) bit set at zero specifies that tagged queuing shall be enabled if the Target supports
tagged queuing. A DQue bit set at one specifies that tagged queuing shall be disabled. Command queuing is
always enabled on the drive, therefore this bit is ignored.
- ATO (Application Tag Owner) bit set to one specifies that the contents of the Logical Block Application Tag
field in the protection information, if any, shall not be modified by the drive. An ATO bit set to zero specifies
that the contents of the Logical Block Application Tag field in the protection information, if any, may be
modified by the drive. If the ATO bit is set to zero, the drive will ignore the contents of the Logical Block
Application Tag field in the protection information.
- ATMPE (Application Tag Mode Page Enabled) bit set to zero specifies that the Application Tag mode page
(see SBC-3) is disabled and the contents of logical block application tags are not defined by this standard.
An ATMPE bit set to one specifies that the Application Tag mode page is enabled.
- If:
- the ATMPE is set to one;
- the ATO bit is set to one;
- the value in the DPICZ bit allows protection information checking for the specified command; and
- the APP_CHK bit is set to one in the Extended Inquiry VPD page;
- then:
- knowledge of the value of the Application Tag shall come from the values in the Application Tag
mode page as specified by the DPICZ bit.
- RWWP (Reject Write Without Protection) bit set to zero specifies that write commands without protection
information (see SBC-3) shall be processed. A RWWP bit set to one specifies that write commands without
protection information received by a device server that has been formatted with protection information shall
be terminated with CHECK CONDITION status with the sense key set to ILLEGAL REQUEST and the
additional sense code set to INVALID FIELD IN CDB
- Busy Timeout Period is ignored
- Extended Self-test Routine Completion Time specifies the time in seconds that the device server requires
to complete an extended self-test provided the device server is not interrupted by subsequent commands
and no errors occur during processing of the self-test. If the value is FFFFh, then refer to the EXTENDED
SELF-TEST COMPLETION MINUTES field in the Extended INQUIRY Data VPD page.