From mboxrd@z Thu Jan  1 00:00:00 1970
From: John Robinson <john.robinson@anonymous.org.uk>
Subject: Re: Creating a 3-disk RAID6 array
Date: Thu, 17 May 2012 15:04:35 +0100
Message-ID: <4FB50573.6020604@anonymous.org.uk>
References: <4FB4534A.5070608@volatilevoid.net> <20120517113817.7faf9c1e@notabene.brown> <4FB4FAA9.7000100@hesbynett.no>
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To: David Brown <david.brown@hesbynett.no>
Cc: NeilBrown <neilb@suse.de>, Oliver Martin <oliver@volatilevoid.net>, linux-raid@vger.kernel.org
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On 17/05/2012 14:18, David Brown wrote:
[...]
> Theoretically, a 3-disk RAID6 is like a 2-disk RAID5 or a 1-disk RAID1 -
[...]
> I can't think of any good reason for it /not/ to support 3-disk
> RAID6, as there is nothing in the algorithms to hinder it.

I've a vague recollection of Peter Anvin saying the implementation is 
optimised in such a way that it won't work.

Cheers,

John.