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From: Grant Johnson <grant@amadensor.com>
To: pgsql-performance@postgresql.org
Subject: Re: How to best use 32 15k.7 300GB drives?
Date: Fri, 28 Jan 2011 06:24:11 -0700
Message-ID: <4D42C37B.80002@amadensor.com> (raw)
In-Reply-To: <201101271611.18465@hal.medialogik.com>
References: <4D41F92F.9030006@missouri.edu>
	<201101271611.18465@hal.medialogik.com>


> Putting the WAL on a second controller does help, if you're write-heavy.
>
> I tried separating indexes and data once on one server and didn't 
> really notice that it helped much. Managing the space was problematic. 
> I would suggest putting those together on a single RAID-10 of all the 
> 300GB drives (minus a spare). It will probably outperform separate 
> arrays most of the time, and be much easier to manage.
>
> -- 
>
>
I like to use RAID 1, and let LVM do the striping.   That way I can add 
more drives later too.



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