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7.2 Sense Data Analysis
7.2.1 Error information indicated with sense data
Table 7.1 lists the definition of sense data. For details of sense data, refer to Chapter 5 “Sense
Data Error Recovery Methods” of the SCSI Logical Interface Specifications.
Subsection 7.2.2 onwards explain troubleshooting using sense data.
Table 7.1 Definition of sense data
Sense data
Sense
key
Additional
sense code
Additional
sense code
qualifier
00 00 00 Operation was normal.
3 0C 03 A write to a disk terminated abnormally.
4 32
40
C4
00
xx
xx
Failed to allocate the alternate block in the alternate processing.
An error occurred in power-on self-diagnosis.
An HDD error occurred.
1
3
1x
1x
xx
xx
A disk read error occurred.
A disk read error occurred.
E 1D 00 Data discrepancy found by VERIFY command byte check.
5
2x
90
xx
00
An SCSI error, such as an invalid operation code, occurred.
The RESERVE or RELEASE command cannot be executed
because the SCSI ID of the initiator was not posted in the
SELECTION phase.
4 or B 44 xx A hardware error occurred inside the HDD.
B
47
48
49
4D
4E
xx
00
00
xx
00
A parity error occurred in the SCSI data bus.
Initiator Detected Error message was received.
An uncounted or inappropriate message was received.
Before completion of a command, a command with the same tag
number was issued.
An overlap command was issued.
Definition
C141-E270 115