I figure you have disks set out so

Drive 1 + Drive 2 = OS
Drive 2 + Drive 3 = Two tablespaces
Drive 4 + 5 + 6   = Oracle Default Tablespaces. 

And you have bought 4 more disks. 

I "theorize", like test this to infinity and beyond, that changing this
to the following will improve IO performance.
Drive 1 + Drive 2 = OS
Drive 3 + Drive 4 = swap + archive logs
Drive 5 + Drive 6 (mirroring) Drive 7 + Drive 8 = oracle data files. 
Drive 9 + Drive 10 = redo logs. 

I.E. stick your data on raid 10,stick redo and archive on two separate
mirror sets and separate swap from os. 

At which point you will no doubt discover that your IO capacity was fine
and it was the damn data that was the issue. 

Niall

> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On 
> Behalf Of Dave Phillips
> Sent: 13 June 2003 16:26
> To: Multiple recipients of list ORACLE-L
> Subject: Want to BAARF - Recommendations for 10 36G Drive config
> 
> 
> A client runs our app with the following layout. Since their 
> intial 6 drive config they have procured more drives for a 
> total of 10 36Gig Drives. They have also upgraded memory from 
> 1 to 4 gig. I have the opportunity to recommend changes to 
> the current structure to improve performance. 
> So, any recommendations from the BAARF committee are welcome. 
> 
> Current System
> 
> Ora 8.1.7
> Win 2k
> Size 30Gig
> Logical Array 1 - Raid 1 - OS and Oracle
> Logical Array 2 - Raid 1 - App and Index TS
> Logical Array 3 - Raid 5 - The rest (Data,Rbs,redo,etc)
> 
> 
> 
> 
> David Phillips
> Support DBA
> BAARF member wanna-be
> -- 
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> -- 
> Author: Dave Phillips
>   INET: [EMAIL PROTECTED]
> 
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Niall Litchfield
  INET: [EMAIL PROTECTED]

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