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3-48 Diagnostic Tools
DAAD Diagnostic Messages
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Message Description Recommended Action
Accelerator
status:
Obsolete data
sensed at
reset
During reset initialization obsolete
data was found in the cache. This
was due to the drives being moved
and written to by another
controller.
Nothing needs to be done. The controller
will either write the data to the drivers or
discard the data completely. Normal
operations should continue.
Accelerator
status:
Obsolete data
was written to
drives
During reset initialization obsolete
data was found in the cache. The
obsolete data was written to the
drives, but newer data may have
been overwritten.
If newer data was overwritten, you may
need to restore newer data; otherwise,
nothing needs to be done. Normal
operations should continue.
Accelerator
status:
Obsolete data
was discarded
During reset initialization obsolete
data was found in the cache and it
was discarded (not written to the
drives).
Nothing needs to be done. Normal
operations
should continue.
Accelerator
status: Dirty
data detected.
Unable to write
dirty data to
drives
At least one cache line contains
dirty data that the controller has
been unable to flush (write) to the
drives. This problem usually occurs
when there is a problem with the
drive(s).
Fix the problem with the drive(s). Then the
controller will be able to write the dirty data
to the drives.
Accelerator
status: Dirty
data detected
has reached
limit. Cache
still enabled,
but writes no
longer being
posted
The number of cache lines
containing dirty data that cannot be
flushed (written) to the drives has
reached a preset limit. The cache
is still enabled, but writes are no
longer being posted. This problem
usually occurs when there is a
problem with
the drive(s).
Fix the problem with the drive(s). Then the
controller will be able to write the dirty data
to the drives and posted write operations
will be restored.
Accelerator
status:
Excessive
ECC errors
detected in at
least one
cache line. As
a result, at
least on cache
line is no
longer in use.
At least on line in the cache is no
longer in use due to excessive
ECC errors detected during use of
the memory associated with that
cache line.
Replacement of the cache should be
considered. If cache replacement is not
done the remaining cache lines should
continue to operate properly.
Accelerator
status: Data in
the cache was
Data in the cache was lost, but not
because of the battery being
Check to be sure that the array accelerator
is properly seated. If the error continues
you may need to replace the array