Re: opinion on RAID choice

From: Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net>
To: PgSQL Performance ML <pgsql-performance(at)postgresql(dot)org>
Subject: Re: opinion on RAID choice
Date: 2003-09-02 16:33:44
Message-ID: 1062520424.7340.218.camel@haggis
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On Tue, 2003-09-02 at 11:14, Andrew Sullivan wrote:
> On Thu, Aug 28, 2003 at 03:26:14PM -0600, scott.marlowe wrote:
> >
> > My experience has been that once you get past 6 disks, RAID5 is faster
> > than RAID1+0.
>
> Also depends on your filesystem and volume manager. As near as I can
> tell, you do _not_ want to use RAID 5 with Veritas.

Why should Veritas care? Or is it that Veritas has a high overhead
of small block writes?

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Ron Johnson, Jr. ron(dot)l(dot)johnson(at)cox(dot)net
Jefferson, LA USA

"Millions of Chinese speak Chinese, and it's not hereditary..."
Dr. Dean Edell

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