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Re: Advice configuring ServeRAID 8k for performance - Mailing list pgsql-performance

From Craig James
Subject Re: Advice configuring ServeRAID 8k for performance
Date
Msg-id 4C5B40AA.3060500@emolecules.com
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In response to Advice configuring ServeRAID 8k for performance  ("Kenneth Cox" <kenstir@gmail.com>)
List pgsql-performance
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On 8/5/10 11:28 AM, Kenneth Cox wrote:
> I am using PostgreSQL 8.3.7 on a dedicated IBM 3660 with 24GB RAM
> running CentOS 5.4 x86_64. I have a ServeRAID 8k controller with 6 SATA
> 7500RPM disks in RAID 6, and for the OLAP workload it feels* slow....
>  My current performance is 85MB/s write, 151 MB/s reads

I get 193MB/sec write and 450MB/sec read on a RAID10 on 8 SATA 7200 RPM disks.  RAID10 seems to scale linearly -- add
disks,get more speed, to the limit of your controller. 

Craig

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