Re: 12 disks raid setup

From: Mark Kirkwood <markir(at)paradise(dot)net(dot)nz>
To: Greg Smith <gsmith(at)gregsmith(dot)com>
Cc: Franck Routier <franck(dot)routier(at)axege(dot)com>, pgsql-performance <pgsql-performance(at)postgresql(dot)org>
Subject: Re: 12 disks raid setup
Date: 2008-02-29 22:33:10
Message-ID: 47C88826.4040209@paradise.net.nz
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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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