Intel RAID Controllers Alert Code Decoding White Paper

Decoding Intel® RAID Sense Code Messages Intel® RAID Controllers: SAS Software Stack
Revision 1.0
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The table below provides an easy reference for these codes. For more detail on the SCSI
ASC/ASCQ Assignments refer to http://www.t10.org/lists/asc-num.txt
.
Table 8: Sense Code Decode Matrix
Category
Sense
Key
Additional
Sense Code
Additional
Sense Code
Qualifier Error Condition
Byte 2 Byte 12 Byte 13
0 0 0 No error
No Sense
0 5D 0 No sense - PFA threshold reached
1 1 0 Recovered Write error - no index
1 2 0 Recovered no seek completion
1 3 0 Recovered Write error - write fault
1 9 0 Track following error
1 0B 1 Temperature warning
1 0C 1 Recovered Write error with auto-realloc – reallocated
1 0C 3 Recovered Write error - recommend reassign
1 12 1 Recovered data without ECC using prev logical block ID
1 12 2 Recovered data with ECC using prev logical block ID
1 14 1 Recovered Record Not Found
1 16 0 Recovered Write error - Data Sync Mark Error
1 16 1 Recovered Write error - Data Sync Error - data rewritten
1 16 2 Recovered Write error - Data Sync Error - recommend rewrite
1 16 3 Recovered Write error - Data Sync Error - data auto-reallocated
1 16 4 Recovered Write error - Data Sync Error - recommend reassignment
1 17 0 Recovered data with no error correction applied
1 17 1 Recovered Read error - with retries
1 17 2 Recovered data using positive offset
1 17 3 Recovered data using negative offset
1 17 5 Recovered data using previous logical block ID
1 17 6 Recovered Read error - without ECC, auto reallocated
1 17 7 Recovered Read error - without ECC, recommend reassign
1 17 8 Recovered Read error - without ECC, recommend rewrite
1 17 9 Recovered Read error - without ECC, data rewritten
1 18 0 Recovered Read error - with ECC
1 18 1 Recovered data - with ECC and retries
1 18 2 Recovered Read error - with ECC, auto reallocated
1 18 5 Recovered Read error - with ECC, recommend reassign
Soft Error
1 18 6 Recovered data using ECC and offsets