Re: Advice on RAID card - Mailing list pgsql-performance

From Michael Stone
Subject Re: Advice on RAID card
Date
Msg-id 20050925155909.GB18077@mathom.us
Whole thread Raw
In response to Re: Advice on RAID card  (Dave Cramer <pg@fastcrypt.com>)
List pgsql-performance
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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