RE: async disk IO in RAC

From: <Rajesh.Rao_at_jpmchase.com>
Date: Wed, 14 Sep 2005 16:40:10 -0400
Message-ID: <OF1B6921B1.82CB8115-ON8525707C.007173AD@jpmchase.com>

What's the process experiencing all these waits? Is it DIAG or DBWR?

                                                                                                                                         
                      "Gogala, Mladen"                                                                                                   
                      <MGogala_at_allegients        To:       "'dba.orcl_at_gmail.com'" <dba.orcl_at_gmail.com>, oracle-l                         
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                      oracle-l-bounce_at_fre        Subject:  RE: async disk IO in RAC                                                      
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                      09/14/2005 02:45 PM                                                                                                
                      Please respond to                                                                                                  
                      MGogala

This means that your're waiting on OS to perform async I/O. In short, try with disk_asynch_io=FALSE and see what you get. Open a TAR with oracle support.

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Mladen Gogala
Ext. 121

From: Sami Seerangan [mailto:dba.orcl_at_gmail.com] Sent: Wednesday, September 14, 2005 12:19 PM To: oracle-l
Subject: async disk IO in RAC

We are experiencing so much "async disk IO" wait event as below.

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http://www.freelists.org/webpage/oracle-l Received on Wed Sep 14 2005 - 15:42:39 CDT