Error Priority; Table 7-2: Error Priority - Tandberg Data SLR7-140 PROGRAMMER Manual

Exception
Parity Error
Overlapped Commands
Drive Reserved
Unit Attention
Deferred Error
Invalid Command Op. Code
Reserved Bits/Fields
Illegal Flag/Link Combination
Unsupported LUN
Other Errors
Tandberg Data
7.8.

Error Priority

The Drive implements the following error reporting
priority for different commands. The first element
in the table has the highest priority.
INQUIRY
CHECK CONDITION
CHECK CONDITION
Execution
Execution
Execution
CHECK CONDITION
CHECK CONDITION
CHECK CONDITION
Execution
(Inquiry data indicates
Unsupported LUN)
CHECK CONDITION
Table 7-2:
When reading or verifying variable blocks, the Drive may
signal 'Illegal Length Indication' if the actual length
of a block does not match the requested length. When the
actual number of data bytes found is less than the
number of bytes requested, the Drive usually signals
'Illegal Length Indication' (the Drive error code is set
to N
O ADDITIONAL SENSE INFORMATION
the ILI-bit is
following error
'Illegal Length Indication', and the actual error is
reported instead of 'Illegal Length Indication'.
R
ECORDED ENTITY NOT FOUND
M
EDIUM NOT PRESENT
C F , B
ARTRIDGE AULT
E - -
ND OF DATA DETECTED
E - -
ND OF DATA DETECTED AFTER
E - -
ND OF PARTITION
R
EAD RETRIES EXHAUSTED
C
ANNOT READ MEDIUM
D CRC
ECOMPRESSION
1
This error will only have priority over 'Illegal Length Indication'
when it is a real error. This means that if the block preceding the
erased tape area is terminated in a normal way, the 'Illegal Length
Indication' is reported when a READ/VERIFY command has specified a
transfer length larger than the block length. Only when a variable
length block has been truncated by some kind of media error (as when
the previously written data has been erased) will the 'Logical End Of
Partition' error take priority over 'Illegal Length Indication'.
7-12 Tandberg SLR Product Line SCSI Functional Specifications
REQUEST SENSE
CHECK CONDITION
CHECK CONDITION
Execution
(Sense data indicates
Reservation Conflict)
Execution
(Sense data indicates
Unit Attention)
Execution
(Sense data indicates
cause of deferred error)
CHECK CONDITION
CHECK CONDITION
CHECK CONDITION
Execution
(Sense data indicates
Unsupported LUN)
CHECK CONDITION
Error Priority
,
ILLEGAL LENGTH BLOCK READ
set in the Sense
conditions have
,
REMOVED DURING COMMAND EXECUTION
C
AD ARTRIDGE
1
1
LEW
/
MEDIUM DETECTED ON READ
.
UNKNOWN FORMAT
ERROR
General Exception Handling
Other Commands
CHECK CONDITION
CHECK CONDITION
CHECK CONDITION
CHECK CONDITION
CHECK CONDITION
(Sense data will indicate
cause of deferred error)
CHECK CONDITION
CHECK CONDITION
CHECK CONDITION
CHECK CONDITION
CHECK CONDITION
Data List).
higher priority
,
PHYSICAL END REACHED
and
The
than