From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keld Simonsen Subject: Re: recovering a mirrored arry. Date: Fri, 5 Feb 2010 19:50:44 +0100 Message-ID: <20100205185043.GA6956@light.rap.dk> References: <20100203025758.GA12925@light.rap.dk> <20100205011928.GA12630@light.rap.dk> <73e903671002050825j2ae06fabjc7ec2b1e8fb85135@mail.gmail.com> 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: <73e903671002050825j2ae06fabjc7ec2b1e8fb85135@mail.gmail.com> Sender: linux-raid-owner@vger.kernel.org To: Kristleifur =?iso-8859-1?Q?Da=F0ason?= Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Fri, Feb 05, 2010 at 04:25:02PM +0000, Kristleifur Da=F0ason wrote: > On Fri, Feb 5, 2010 at 1:19 AM, Keld Simonsen wrote= : > > On Wed, Feb 03, 2010 at 03:57:58AM +0100, Keld Simonsen wrote: > > Hi > > > > > > can anybody help me with this? I am stuck with recovering my system= here. > > is it a sensible thing ro do? > > > > best regards > > keld > > > >> Hi > >> > >> I got 2 arrays in error of the raid10 type. > >> > >> I think this is because my motherboard died, and then the fs were > >> corrupted. > >> > >> My thoughts were that actually one of the copies could be correct. > >> So I would like to try out the consistency of each part of the rai= d10 > >> (it is 2-partition arrays), and then if I find one that is consist= ent, then > >> resync the faulty one with the good one. > >> > >> How do I do this? > >> > >> it seems that I cannot just assemble an array with a missing part. > >> If I assemble the full array, is there then a risk of the bad one > >> corrupting the good one? And can I declare one of the disks faulty > >> then test the other one, then declare nbr 2 disk for faulty and > >> declare the first one as good? > >> > >> I dont see anything on the wiki on this. > >> > >> best regards > >> keld > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-rai= d" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at =A0http://vger.kernel.org/majordomo-info.htm= l > > >=20 >=20 > I wish I could help more, but check out this from the mdadm man page: >=20 > To create a "degraded" array in which some devices are missing= , > simply give > the word "missing" in place of a device name. This will > cause mdadm to > leave the corresponding slot in the array empty. For a > RAID4 or RAID5 > array at most one slot can be "missing"; for a RAID6 array > at most two > slots. For a RAID1 array, only one real device needs to be > given. All of > the others can be "missing". I tried missing, but mdadm said that it could not find missing as a dev= ice, for assemble mode. 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