From: Gionatan Danti <g.danti@assyoma.it>
To: keld@keldix.com
Cc: linux-raid@vger.kernel.org
Subject: Re: RAID 10 far and offset on-disk layouts
Date: Fri, 27 Dec 2013 16:22:55 +0100 [thread overview]
Message-ID: <52BD9B4F.3000509@assyoma.it> (raw)
In-Reply-To: <20131227151927.GA4003@www5.open-std.org>
> On Fri, Dec 27, 2013 at 03:29:49PM +0100, Gionatan Danti wrote:
> The wikipedia description is what you get for new arrays with newer
> kernels, while the suse documentation is what you will get with older kernels.
> The wikipedia layout was made because there are better chances of recovery,
> Chances went from 1/3 to 2/3 with eg 4 drives, when 2 drives were failing.
>
> I would say that the Suse description is just not updated.
>
> Best regards
> Keld
>
Interesting. Two question:
1) from which kernel the layout is the one depicted by Wikipedia?
2) it is possible, using mdadm, check what "far" layout is in use?
Thanks.
--
Danti Gionatan
Supporto Tecnico
Assyoma S.r.l. - www.assyoma.it
email: g.danti@assyoma.it - info@assyoma.it
GPG public key ID: FF5F32A8
next prev parent reply other threads:[~2013-12-27 15:22 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-27 14:29 RAID 10 far and offset on-disk layouts Gionatan Danti
2013-12-27 14:46 ` Peter Grandi
2013-12-27 15:16 ` Gionatan Danti
2013-12-27 17:16 ` Peter Grandi
2013-12-27 17:32 ` Gionatan Danti
2013-12-27 18:26 ` keld
2013-12-27 15:19 ` keld
2013-12-27 15:22 ` Gionatan Danti [this message]
2013-12-27 15:49 ` keld
2014-01-09 8:03 ` Gionatan Danti
2014-01-12 23:20 ` NeilBrown
2014-01-13 8:52 ` Gionatan Danti
2014-01-13 9:45 ` NeilBrown
2014-01-13 10:15 ` Gionatan Danti
2014-01-13 22:27 ` NeilBrown
2014-01-13 23:38 ` keld
2014-01-14 0:46 ` Stan Hoeppner
2014-01-14 9:38 ` keld
2014-01-14 9:06 ` Gionatan Danti
2014-01-14 9:16 ` NeilBrown
2014-01-14 9:27 ` Gionatan Danti
2014-01-14 10:06 ` keld
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