async disk IO in RAC

  • From: Sami Seerangan <dba.orcl@xxxxxxxxx>
  • To: oracle-l <oracle-l@xxxxxxxxxxxxx>
  • Date: Wed, 14 Sep 2005 12:18:32 -0400

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

What could be wrong? Do I have to look at any init parameters?

SQL> select inst_id,SECONDS_IN_WAIT,sid,event from gv$session_wait where 
EVENT='async disk IO';
 
 INST_ID SECONDS_IN_WAIT SID EVENT
---------- --------------- ---------- ------------------------------
 1 186185 2 async disk IO
 3 186183 2 async disk IO
 2 186184 2 async disk IO

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