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Oracle 8.1.7.4 on Solaris 8.
We upgraded from 8.1.6.3 to 8.1.7.4 last month. Since the upgrade, we have seen the occasional strange problem since. At approx. the same time (but not daily), there will be an entry in the alert.log
WARNING: aiowait timed out 1 times
At the same time as the warning is entered into the alert log, all of the
sql connections to the database are dropped. The background processes stay
active, but the any other processes die.
According to Metalink, this error should also be followed by a DB crash, which is _not_ what is happening. Metalink also says that Async IO should be turned off and multiple DBWRs should be started. SInce the database isn't crashing, there is some reluctance to turn off Async IO.
Has anyone else seen anything like this? And if so, how have you handled it?
TIA for any help that can be provided.
Terry Ball, DBA
Birch Telecom
Work: 816-300-1335
FAX: 816-300-1800
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Author: Ball, Terry
INET: TBall_at_birch.com
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