HGST Ultrastar 7K4000 (SAS) Hard Disk Drive Specification
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• If TMF is set to ABORT TASK or QUERY TASK, the TAG OF TASK TO BE MANAGED field specifies the TAG
value from the COMMAND frame that contained the task to be aborted or checked. For all other TMF’s, this field is
ignored.
•If TMF is set to QUERY ASYNCHRONOUS EVENT, the Additional Response Information argument is set to 000000h
for the response of FUNCTION COMPLETE. If the response is FUNCTION SUCCEED, the Additional Response
Information argument is set as defined in table 34.
Table 34: Additional Response Information argument for Query Async Event
The UADE DEPTH is the number of pending unit attention conditions or deferred errors. It is defined as in table Table 35:
The SENSE KEY field is the value of the SENSE KEY field in the highest-priority pending unit attention condition or
deferred error.
The ADDITIONAL SENSE CODE field is the value of the ADDITIONAL SENSE CODE field in the highest-priority pend-
ing unit attention condition or deferred error.
The ADDITIONAL SENSE CODE QUALIFIER field is the value of the ADDITIONAL SENSE CODE QUALIFIER field in
the highest-priority pending unit attention condition or deferred error
Table 35: UADE DEPTH field
82h QUERY ASYNCHRONOUS EVENT (formerly QUERY UNIT ATTENTION): The drive
shall return a response of FUNCTION SUCCEEDED if there is a unit attention or a deferred
error pending, or FUNCTION COMPLETE if there is no unit attention or no deferred error
pending.
others RESERVED: The Drive will return a RESPONSE frame with the
DATAPRES field set to
RESPONSE_DATA and its
RESPONSE CODE field set to TASK MANAGEMENT FUNC-
TION NOT SUPPORTED.
Byte Bit
76543210
0 RESERVED UADE DEPTH SENSE KEY
1 ADDITIONAL SENSE CODE
2 ADDITIONAL SENSE CODE QUALIFIER
Code Description
00b The combined number of unit attention conditions and deferred errors is unknown
01b The combined number of unit attention conditions and deferred errors is one
10b The combined number of unit attention conditions and deferred errors is greater than one
11b Reserved
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