From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keld =?iso-8859-1?Q?J=F8rn?= Simonsen Subject: Re: expand raid10 Date: Wed, 13 Apr 2011 14:34:14 +0200 Message-ID: <20110413123413.GA10377@www2.open-std.org> References: <20110413111015.GA10195@www2.open-std.org> <20110413211715.286d9203@notabene.brown> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: <20110413211715.286d9203@notabene.brown> Sender: linux-raid-owner@vger.kernel.org To: NeilBrown Cc: Keld =?iso-8859-1?Q?J=F8rn?= Simonsen , Roberto Spadim , Mathias =?iso-8859-1?Q?Bur=E9n?= , Linux-RAID List-Id: linux-raid.ids On Wed, Apr 13, 2011 at 09:17:15PM +1000, NeilBrown wrote: > On Wed, 13 Apr 2011 13:10:16 +0200 Keld J=F8rn Simonsen wrote: >=20 > > On Wed, Apr 13, 2011 at 07:47:26AM -0300, Roberto Spadim wrote: > > > raid10 with other layout i could expand? > >=20 > > My understanding is that you currently cannot expand raid10. > > but there are things in the works. Expansion of raid10,far > > was not on the list from neil, raid10,near was. But it should be fa= irly > > easy to expand raid10,far. You can just treat one of the copies as = your > > refence data, and copy that data to the other raid0-like parts of t= he > > array. I wonder if Neil thinks he could leave that as an exersize = for > > me to implement... I would like to be able to combine it with a > > reformat to a more robust layout of raid10,far that in some cases c= an survive more > > than one disk failure. > >=20 >=20 > I'm very happy for anyone to offer to implement anything. >=20 > I will of course require the code to be of reasonable quality before = I accept > it, but I'm also happy to give helpful review comments and guidance. >=20 > So don't wait for permission, if you want to try implementing somethi= ng, just > do it. >=20 > Equally if there is something that I particularly want done I won't w= ait for > ever for someone else who says they are working on it. But RAID10 re= shape is > a long way from the top of my list. Hi Neil! Yes, that is how I understand your policy on contributions. Do you by RAID10 reshaping also mean RAID10 expansion? In my eyes this is quite important, and something that I have wanted fo= r a long time. I think it is a quite common task for many Linux MD users. best regards keld -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html