From: Craig James <craig_james@emolecules.com>
To: pgsql-performance@postgresql.org
Subject: Re: Advice configuring ServeRAID 8k for performance
Date: Thu, 05 Aug 2010 15:52:26 -0700
Message-ID: <4C5B40AA.3060500@emolecules.com> (raw)
In-Reply-To: <op.vgy9k5ov5ru9c3@kent60.office.vivox.com>
References: <op.vgy9k5ov5ru9c3@kent60.office.vivox.com>
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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To: pgsql-performance@postgresql.org
Cc: craig_james@emolecules.com
Subject: Re: Advice configuring ServeRAID 8k for performance
In-Reply-To: <4C5B40AA.3060500@emolecules.com>
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