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Re: XFS Tunables for High Speed Linux SW RAID5 Systems?

from [David Greaves] [Permanent Link][Original]
To: David Chinner <dgc@xxxxxxx>
Subject: Re: XFS Tunables for High Speed Linux SW RAID5 Systems?
From: David Greaves <david@xxxxxxxxxxxx>
Date: Mon, 18 Jun 2007 12:59:00 +0100
Cc: Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>, xfs@xxxxxxxxxxx, linux-raid@xxxxxxxxxxxxxxx
In-reply-to: <20070618000502.GU86004887@sgi.com>
References: <Pine.LNX.4.64.0706151634130.26033@p34.internal.lan> <20070618000502.GU86004887@sgi.com>
Sender: xfs-bounce@xxxxxxxxxxx
User-agent: Mozilla-Thunderbird 2.0.0.0 (X11/20070601)
David Chinner wrote:
On Fri, Jun 15, 2007 at 04:36:07PM -0400, Justin Piszcz wrote: 
Hi,

I was wondering if the XFS folks can recommend any optimizations for high speed disk arrays using RAID5? 

[sysctls snipped]

None of those options will make much difference to performance.
mkfs parameters are the big ticket item here....


Is there anywhere you can point to that expands on this?

Is there anything raid specific that would be worth including in the Wiki?

David


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