From: Scott Marlowe <scott.marlowe@gmail.com>
To: Franck Routier <franck.routier@axege.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: 12 disks raid setup
Date: Fri, 29 Feb 2008 08:13:12 -0600
Message-ID: <dcc563d10802290613v482f52dr43ea95b52886de31@mail.gmail.com> (raw)
In-Reply-To: <1204285894.11773.33.camel@franck-gusty>
References: <1204285894.11773.33.camel@franck-gusty>
On Fri, Feb 29, 2008 at 5:51 AM, Franck Routier
<franck.routier@axege.com> wrote:
> Hi,
>
> I am in the process of setting up a postgresql server with 12 SAS disks.
>
> I am considering two options:
>
> 1) set up a 12 disks raid 10 array to get maximum raw performance from
> the system and put everything on it (it the whole pg cluster, including
> WAL, and every tablespcace)
>
> 2) set up 3 raid 10 arrays of 4 disks, and dispatch my data on these
> disks via tablespaces :
How you set it up depends on your RAID controller as much as anything.
Good battery backed RAID controllers seem to work better with one big
RAID-10 array. But as with anything, unless you benchmark it, you're
really just guessing which is best.
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To: pgsql-performance@postgresql.org
Cc: scott.marlowe@gmail.com, franck.routier@axege.com
Subject: Re: 12 disks raid setup
In-Reply-To: <dcc563d10802290613v482f52dr43ea95b52886de31@mail.gmail.com>
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