From: Michael Stone <mstone+postgres@mathom.us>
To: pgsql-performance@postgresql.org
Subject: Re: Advice on RAID card
Date: Sun, 25 Sep 2005 11:59:09 -0400
Message-ID: <20050925155909.GB18077@mathom.us> (raw)
In-Reply-To: <ABE6B997-2C1E-43B1-9F18-28F54B1620FE@fastcrypt.com>
References: <IGEGINLEEDLANNHAAKCMOECJCCAA.gaulakh@ecmarket.com>
<op.sxll3du6th1vuj@localhost>
<43367937.40809@canaan.co.il>
<ABE6B997-2C1E-43B1-9F18-28F54B1620FE@fastcrypt.com>
On Sun, Sep 25, 2005 at 10:57:56AM -0400, Dave Cramer wrote:
>I would think software raid would be quite inappropriate considering
>postgres when it is working is taking a fair amount of CPU as would
>software RAID. Does anyone know if this is really the case ?
It's not. Modern cpu's can handle raid operations without even noticing.
At the point where your raid ops become a significant fraction of the
cpu you'll be i/o bound anyway.
Mike Stone
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To: pgsql-performance@postgresql.org
Cc: mstone+postgres@mathom.us
Subject: Re: Advice on RAID card
In-Reply-To: <20050925155909.GB18077@mathom.us>
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