Subject: Re: Opinions on Raid
From: Scott Marlowe <smarlowe@g2switchworks.com>
To: Joe Uhl <juhl@wethecitizens.com>
Cc: 'Joe Uhl' <joeuhl@gmail.com>, pgsql-performance@postgresql.org
In-Reply-To: <20070227182814.4A4521660F@heartbeat2.messagingengine.com>
References: <20070227182814.4A4521660F@heartbeat2.messagingengine.com>
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Date: Tue, 27 Feb 2007 13:12:25 -0600

On Tue, 2007-02-27 at 12:28, Joe Uhl wrote:
> Really appreciate all of the valuable input.  The current server has the
> Perc4ei controller.
> 
> The impression I am taking from the responses is that we may be okay with
> software raid, especially if raid 1 and 10 are what we intend to use.
> 
> I think we can collect enough information from the archives of this list to
> help make decisions for the new machine(s), was just very interested in
> hearing feedback on software vs. hardware raid.
> 
> We will likely be using the 2.6.18 kernel.

Well, whatever you do, benchmark it with what you think will be your
typical load.  you can do some simple initial tests to see if you're in
the ballpark with bonnie++, dd, etc...  Then move on to real database
tests after that.