Re: best arrangement of 3 disks for (insert) performance - Dell

From: "Thom Dyson" <TDyson(at)sybex(dot)com>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: best arrangement of 3 disks for (insert) performance - Dell
Date: 2003-09-12 17:03:10
Message-ID: OF05C143F9.4A165099-ON88256D9F.005D4EB2-88256D9F.005DAC3B@sybex.com
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The Dell PERC controllers have a very strong reputation for terrible
performance. If you search the archives of the Dell Linux Power Edge list
(dell.com/linux) you will find many, many people who get better
performance from software RAID, rather than the hw RAID on the PERC.
Having said that, the 3/SC might be one of the better PERC controllers. I
would spend and hour or two and benchmark hw vs. sw before I committed to
either one.

Thom Dyson
Director of Information Services
Sybex, Inc.

On 9/12/2003 9:55:40 AM, Richard Jones <rj(at)last(dot)fm> wrote:
> The machine is coming from dell, and i have the option of a
> PERC 3/SC RAID Controller (32MB)
> or software raid.
>
> does anyone have any experience of this controller?
> its an additional £345 for this controller, i'd be interested to know
what
> people think - my other option is to buy the raid controller separately,
> which appeals to me but i wouldnt know what to look for in a raid
> controller.
>
> that raid controller review site sounds like a good idea :)
>
> Richard.

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