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  3. April 2005

Re: lpar processor allocation - find disk cache failure





<snip>
we found our performance problem - cache batteries have failed.
</snip>

Was that a 2780 controller card?  I am beginning to wonder if there is a
real quality problem with the batteries on those cards.  I had a couple of
them fail on me during upgrades recently.

As to the question about how to find the error, you need to look in
SST/DST, Hardware service Manager , work with service action log.  The
failures and which cards should be indicated there.  As previously
mentioned, the easy way to see there is a problem, is if the disk
utilization is very high, (approaching 100% for a restore).  Those are the
drives that have a cache failure.

Jim Oberholtzer
Senior Solutions Architect
Computech Resources, Inc.

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