Re: Filesystem benchmarking for pg 8.3.3 server

From: Glyn Astill <glynastill(at)yahoo(dot)co(dot)uk>
To: Greg Smith <gsmith(at)gregsmith(dot)com>, Henrik <henke(at)mac(dot)se>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: Filesystem benchmarking for pg 8.3.3 server
Date: 2008-08-11 10:35:50
Message-ID: 158561.15546.qm@web25808.mail.ukl.yahoo.com
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> >
> >> It feels like there is something fishy going on.
> Maybe the RAID 10
> >> implementation on the PERC/6e is crap?
> >

It's possible. We had a bunch of perc/5i SAS raid cards in our servers that performed quite well in Raid 5 but were shite in Raid 10. I switched them out for Adaptec 5808s and saw a massive improvement in Raid 10.

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