From: Joshua D. Drake <jd@commandprompt.com>
To: Dave Cramer <pg@fastcrypt.com>
Cc: Michael Ben-Nes <miki@canaan.co.il>
Cc: PFC <lists@boutiquenumerique.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Advice on RAID card
Date: Sun, 25 Sep 2005 08:42:51 -0700
Message-ID: <4336C57B.6090800@commandprompt.com> (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>
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 ?
The common explanation is that CPUs are so fast now that it doesn't make
a difference.
From my experience software raid works very, very well. However I have
never put
software raid on anything that is very heavily loaded.
I would still use hardware raid if it is very heavily loaded.
Sincerely,
Joshua D. Drake
--
Your PostgreSQL solutions company - Command Prompt, Inc. 1.800.492.2240
PostgreSQL Replication, Consulting, Custom Programming, 24x7 support
Managed Services, Shared and Dedicated Hosting
Co-Authors: plPHP, plPerlNG - http://www.commandprompt.com/
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-performance@postgresql.org
Cc: jd@commandprompt.com, pg@fastcrypt.com, miki@canaan.co.il, lists@boutiquenumerique.com
Subject: Re: Advice on RAID card
In-Reply-To: <4336C57B.6090800@commandprompt.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox