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Re: HIGH IO ON SYSTEM DATA FILES

From: Danisment Gazi Unal (ubTools) <dunal_at_ubTools.com>
Date: Mon, 17 Jun 2002 12:13:37 -0800
Message-ID: <F001.0047F911.20020617121337@fatcity.com>


> Hi
> I am wondering in one of database teh IO rate is high on system data
> files.Let me know what could be reason and how to reduce it.
> Thx
> -Seema
>

I think this kind of diagnosing may waste your time. You should follow up the consequence ---> cause path in problem solving, not possible_causes ---> consequence.

I mean you should identify if you are really encountering an IO problem(consequence). Otherwise, starting from possible causes(file distribution, sga length, etc.), then confirming their consequences(IO problem, if there is) may waste your time.

maybe you are doing that, and I'm missing something.. .
danisment...

Greg Moore wrote:

> A possible cause is shared pool too small, causing dictionary cache (row
> cache) to be too small, so frequently needed items from data dictionary
> can't all be cached.
>
> ----- Original Message -----
> To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> Sent: Monday, June 17, 2002 9:38 AM
>
> > Hi
> > I am wondering in one of database teh IO rate is high on system data
> > files.Let me know what could be reason and how to reduce it.
> > Thx
> > -Seema
> >
> >
> > _________________________________________________________________
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> > Author: Seema Singh
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> >
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--
Danisment Gazi Unal
http://www.ubTools.com


-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Danisment Gazi Unal (ubTools)
  INET: dunal_at_ubTools.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
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Received on Mon Jun 17 2002 - 15:13:37 CDT

Original text of this message

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