Write-back caching is disabled

From: Annerton, Jim <Jim.Annerton_at_msfc.nasa.gov>
Date: Fri, 19 Mar 1999 15:02:45 -0600

First, many thanks for making this list possible.

Now my question,
I am using HSZ40's in a dual-redundant configuration. When I do a SHOW THIS
FULL it reports "cache is good" and "battery is good" When I do a SHOW OTHER
FULL it reports "cache is good" and "battery is low." I also get a message
saying "cache battery charge is low" and "write-back caching is disabled." I
have writeback caching set for all units in this array.

My question is this, does the HSZ40 disable writeback caching automatically
if the cache battery is low, and does this override the writeback cache
setting at the disk unit level? In other words, is the hardware smart enough
to protect me when the cache battery fails?
Thanks.
/Jim
Received on Fri Mar 19 1999 - 21:05:20 NZDT