Re: async disk IO in RAC

From: <Rajesh.Rao_at_jpmchase.com>
Date: Wed, 14 Sep 2005 21:57:07 -0400
Message-ID: <OFB1BB5CC8.F7EF9C3A-ON8525707D.0009D796-8525707D.000AB919@jpmchase.com>

Did the wait event show up, after some trace files were generated? I know I am not helping, but I have been there. My 9.2.0.6 RAC on Solaris 8 experienced the same symptoms . We ran into an ORA-4031 and some trace files were written into, and since then, the DIAG process was forever waiting on "async disk i/o". This did not cause any impact, other than skewing up our monitoring. A bounce of the instance fixed this. Had that luxury since this was QA.

Sami Seerangan <dba.orcl_at_gmail.com>
Sent by: oracle-l-bounce_at_freelists.org
09/14/2005 09:42 PM
Please respond to dba.orcl

        To:     Rajesh.Rao_at_jpmchase.com
        cc:     oracle-l <oracle-l_at_freelists.org>
        Subject:        Re: async disk IO in RAC

DIAG process is experiencing all these waits.

On 9/14/05, Rajesh.Rao_at_jpmchase.com < Rajesh.Rao_at_jpmchase.com> wrote: What's the process experiencing all these waits? Is it DIAG or DBWR?

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Received on Wed Sep 14 2005 - 20:59:29 CDT