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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
TASK
TASK frame
management
(ABORT TASK)
TASK frame
(ABORT TASK SET)
TASK frame
(CLEAR TASK SET)
TASK frame
(LOGICAL UNIT RESET)
TASK frame
(QUERY TASK)
TASK frame
(CLEAR ACA)
TASK frame
(LUN ≠ 0)
Receiving
Overlapped TAG
system
Queue full
DATA OFFSET error
DATA overrun
DATA frame CRC error
DATA frame TOO LONG
TPTT error
DATA frame TAG error
HASHED DESTINATION
SAS ADDRESS error
HASHED SOURCE SAS
ADDRESS error
Unknown IU frame received
SSP frame shorter than 6
dwords received (no IU)
I_Tnexus loss timer timeout
in OPEN frame sending
OPEN_REJECT indicating
that operation cannot be
continued received
C141-C009
Processing
Aborts a task that matches with respect to I-T-L-Q, and reports
TASK MANAGEMENT FUNCTION COMPLETE.
Aborts all the tasks that match with respect to I-T-L, and reports
TASK MANAGEMENT FUNCTION COMPLETE.
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.
Aborts all the tasks of the INIT, and reports TASK
MANAGEMENT FUNCTION COMPLETE.
Reports UNIT ATTENTION (06/29/03) to all the INITs.
Reports TASK MANAGEMENT FUNCTION COMPLETE or
TASK MANAGEMENT FUNCTION SUCCEEDED.
Reports TASK MANAGEMENT FUNCTION NOT
SUPPORTED.
Reports INVALID LOGICAL UNIT NUMBER.
Reports for TAGGED OVERLAPPED COMMANDS
(0B/4D/nn or 0B/4E/00).
Reports the QUEUE FULL status.
Reports for DATA OFFSET ERROR (0B/4B/05).
Reports for TOO MUCH WRITE DATA (0B/4B/02).
Reports for INFORMATION UNIT iuCRC ERROR DETECTED
(0B/47/03).
Reports for INFORMATION UNIT TOO LONG (0B/0E/02).
Reports INVALID TARGET PORT TRANSFER TAG
RECEIVED (0B/4B/01).
Discards the frame.
Discards the frame.
Discards the frame.
Discards the frame.
Discards the frame.
Aborts all the tasks of the INIT, and reports UNIT ATTENTION
(06/29/07).
Aborts the task.
1.6 Transport layer
1-81
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