From: Mark Kirkwood <markir@paradise.net.nz>
To: Greg Smith <gsmith@gregsmith.com>
Cc: Franck Routier <franck.routier@axege.com>
Cc: pgsql-performance <pgsql-performance@postgresql.org>
Subject: Re: 12 disks raid setup
Date: Sat, 01 Mar 2008 11:33:10 +1300
Message-ID: <47C88826.4040209@paradise.net.nz> (raw)
In-Reply-To: <Pine.GSO.4.64.0802291019570.28452@westnet.com>
References: <1204285894.11773.33.camel@franck-gusty>
<dcc563d10802290613v482f52dr43ea95b52886de31@mail.gmail.com>
<1204296705.11773.51.camel@franck-gusty>
<Pine.GSO.4.64.0802291019570.28452@westnet.com>
Greg Smith wrote:
>
> The only real downside of md RAID is that if you lose the boot device
> it can be tricky to get the system to start again; hardware RAID hides
> that little detail from the BIOS. Make sure you simulate a failure of
> the primary boot drive and are comfortable with recovering from that
> situation before you go into production with md.
+1
I usually ensure there is a separate /boot that is setup RAID1 (with md
using all the disks for the RAID1 - so the I can keep the partition map
the same for all the disks, otherwise it is fiddly!)
Cheers
Mark
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To: pgsql-performance@postgresql.org
Cc: markir@paradise.net.nz, gsmith@gregsmith.com, franck.routier@axege.com
Subject: Re: 12 disks raid setup
In-Reply-To: <47C88826.4040209@paradise.net.nz>
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