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High Disk utilisation [message #514914] Thu, 07 July 2011 04:51 Go to next message
sekar52
Messages: 141
Registered: May 2010
Location: Mumbai
Senior Member
Hi
I have a database in which the disk utilisation of server is 100% for 90% of the time.How to find out which process is causing high I/O and is there any way to tune it....
Re: High Disk utilisation [message #514918 is a reply to message #514914] Thu, 07 July 2011 04:59 Go to previous messageGo to next message
cookiemonster
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Registered: September 2008
Location: Rainy Manchester
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Where did you get those figures from?
Are you sure it's the DB and not something else on the server causing the problem?

If you are sure it's the DB - statspack or awr might be a good place to start.

[Updated on: Thu, 07 July 2011 05:00]

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Re: High Disk utilisation [message #514919 is a reply to message #514914] Thu, 07 July 2011 05:01 Go to previous messageGo to next message
Michel Cadot
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You should better post this question in a Unix forum.
It does not matter it is an Oracle process.
And how do you know it is not another one?

Regards
Michel
Re: High Disk utilisation [message #514925 is a reply to message #514919] Thu, 07 July 2011 05:10 Go to previous messageGo to next message
sekar52
Messages: 141
Registered: May 2010
Location: Mumbai
Senior Member
It is the oracle processes...I can see it in glance....Actually I found out that two segments are contributing to high physical reads in all the awr reports...Any solution
Re: High Disk utilisation [message #514926 is a reply to message #514925] Thu, 07 July 2011 05:13 Go to previous messageGo to next message
Michel Cadot
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If you know it is Oracle processes then you know which process it is otherwise you don't know you just think it is.

Regards
Michel
Re: High Disk utilisation [message #514929 is a reply to message #514926] Thu, 07 July 2011 05:15 Go to previous messageGo to next message
sekar52
Messages: 141
Registered: May 2010
Location: Mumbai
Senior Member
Actually we are using shared server architecture so the shared server processes are present in it and the Disk I/O is 100% most of the time...
Re: High Disk utilisation [message #514932 is a reply to message #514929] Thu, 07 July 2011 05:39 Go to previous message
Michel Cadot
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And there are no other processes?

Regards
Michel
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