Identifying source of iowait - is it the DB or the raid array
- From: David Turner <dnt9000@xxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Wed, 22 Jun 2005 16:21:58 -0700 (PDT)
Periodically we have a problem with our raid arrays
and suddenly iowait shoots up. Does anyone have a
method of identifying the source of iowait. I find it
hard to tell whether say the cache on a raid array was
disabled versus more processes performing table scans.
I understand historical tracking but often don't have
this info on the databases. Currently working with 9i.
Thx, Dave
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