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From: Andrew Sullivan <ajs@crankycanuck.ca>
To: pgsql-performance@postgresql.org
Subject: Re: best use of an EMC SAN
Date: Wed, 11 Jul 2007 11:33:37 -0400
Message-ID: <20070711153337.GO1241@phlogiston.dyndns.org> (raw)
In-Reply-To: <D02C9DBC-0127-4B62-ABE3-93646B6A3F9F@fastcrypt.com>
References: <D02C9DBC-0127-4B62-ABE3-93646B6A3F9F@fastcrypt.com>

On Wed, Jul 11, 2007 at 09:03:27AM -0400, Dave Cramer wrote:
> Problem with dedicating the spindles to each array is that we end up  
> wasting space. Are the SAN's smart enough to do a better job if I  
> create one large metalun and cut it up ?

In my experience, this largely depends on your SAN and its hard- and
firm-ware, as well as its ability to interact with the OS.  I think
the best answer is "sometimes yes".

A

-- 
Andrew Sullivan  | ajs@crankycanuck.ca
However important originality may be in some fields, restraint and 
adherence to procedure emerge as the more significant virtues in a 
great many others.   --Alain de Botton



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