From: Alan Hodgson <ahodgson@simkin.ca>
To: pgsql-performance@postgresql.org
Subject: Re: dell versus hp
Date: Tue, 13 Nov 2007 07:49:49 -0800
Message-ID: <200711130749.49594@hal.simkin.ca> (raw)
In-Reply-To: <26BFDB02-6BE0-4CD8-8F01-415C4D7D32CF@kcilink.com>
References: <82607932-FC46-4B73-BF78-2290EE55F7F5@pvv.ntnu.no>
<200711081256.41880@hal.medialogik.com>
<26BFDB02-6BE0-4CD8-8F01-415C4D7D32CF@kcilink.com>
On November 9, 2007, Vivek Khera <khera@kcilink.com> wrote:
> On Nov 8, 2007, at 3:56 PM, Alan Hodgson wrote:
> > You can't touch RAID 10 for performance or reliability. The only
> > reason to
> > use RAID 5 or RAID 6 is to get more capacity out of the same
> > drives.
>
> Maybe you can't, but I can. I guess I have better toys than you :-)
>
OK, I'll bite. Name one RAID controller that gives better write
performance in RAID 6 than it does in RAID 10, and post the benchmarks.
I'll grant a theoretical reliability edge to RAID 6 (although actual
implementations are a lot more iffy), but not performance.
--
The ethanol craze means that we're going to burn up the Midwest's last
six inches of topsoil in our gas-tanks.
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-performance@postgresql.org
Cc: ahodgson@simkin.ca
Subject: Re: dell versus hp
In-Reply-To: <200711130749.49594@hal.simkin.ca>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox