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RE: DBWR Average Scan Depth

From: VIVEK_SHARMA <VIVEK_SHARMA_at_infy.com>
Date: Mon, 13 Nov 2000 22:00:07 +0530
Message-Id: <10679.121903@fatcity.com>


> On 7.3.4.5 on AIX 4.3.3 when Running a Batch Processing Option (Interest
> Calculation on Bank Accounts)
>
> Following Error Message Displayed in the TOAD Performance Tool :-
> Message - DBWR Average Scan Depth , Suggestion "Number of DB_FILES to High
> ?"
>
>

db_files existing=500 .
NOTE - There Exist about 58 Datafiles
> Changed the db_files parameter to 60 from 500
>
> db_file_simultaneous_writes=4

Oracle Recommends setting it Equal to 4*Max No. of Disks Across which a Datafile is Stripped
> Increased db_file_simultaneous_writes to 16 from 4 because a Datafile is
> Stripped across 4 Disks
>

Even Thereafter in the Subsequent Batch Processing Runs the Message persists :-
Message - DBWR Average Scan Depth , Suggestion "Number of DB_FILES to High Received on Mon Nov 13 2000 - 10:30:07 CST

Original text of this message

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