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SAS Interface
100 C141-C013
Table 1.45 lists the events for which a drive performs exceptional event
processing.
Table 1.45 Exceptional event processing of a drive (1/2)
Exceptional event Processing
TASK frame
(ABORT TASK)
Aborts a task that matches with respect to I-T-L-Q, and reports
TASK MANAGEMENT FUNCTION COMPLETE.
TASK frame
(ABORT TASK SET)
Aborts all the tasks that match with respect to I-T-L, and reports
TASK MANAGEMENT FUNCTION COMPLETE.
TASK frame
(CLEAR TASK SET)
Aborts all the tasks of the INIT, and reports TASK
MANAGEMENT FUNCTION COMPLETE.
Reports UNIT ATTENTION (06/2F/00) to the INIT other than
nexus that performed abort processing.
TASK frame
(LOGICAL UNIT RESET)
Aborts all the tasks of the INIT, and reports TASK
MANAGEMENT FUNCTION COMPLETE.
Reports UNIT ATTENTION (06/29/03) to all the INITs.
TASK frame
(QUERY TASK)
Reports TASK MANAGEMENT FUNCTION COMPLETE or
TASK MANAGEMENT FUNCTION SUCCEEDED.
TASK frame
(CLEAR ACA)
Reports TASK MANAGEMENT FUNCTION NOT
SUPPORTED.
TASK
management
TASK frame
(LUN ≠ 0)
Reports INVALID LOGICAL UNIT NUMBER.
Overlapped TAG Reports for TAGGED OVERLAPPED COMMANDS
(0B/4E/00).
Queue full Reports the QUEUE FULL status.
DATA OFFSET error Reports for DATA OFFSET ERROR (0B/4B/05).
DATA overrun Reports for TOO MUCH WRITE DATA (0B/4B/02).
DATA frame CRC error Reports for INFORMATION UNIT iuCRC ERROR DETECTED
(0B/47/03).
DATA frame TOO LONG Reports for INFORMATION UNIT TOO LONG (0B/0E/02).
DATA frame TOO SHORT Reports for INFORMATION UNIT TOO SHORT (0B/0E/01).
TPTT error Reports INVALID TARGET PORT TRANSFER TAG
RECEIVED (0B/4B/01).
DATA frame TAG error Discards the frame.
HASHED DESTINATION
SAS ADDRESS error
Discards the frame.
HASHED SOURCE SAS
ADDRESS error
Discards the frame.
Unknown IU frame received Discards the frame.
COMMAND/TASK frame
shorter than 6 dwords
received
Reports INVALID FRAME.
I_Tnexus loss timer timeout
in OPEN frame sending
Aborts all the tasks of the INIT, and reports UNIT ATTENTION
(06/29/07).
Receiving
system
OPEN_REJECT indicating
that operation cannot be
continued received
Aborts the task.