From mboxrd@z Thu Jan 1 00:00:00 1970 From: erik@debian.franken.de (Erik Tews) Subject: Re: LVM array, one disk failed Date: Sun, 29 Dec 2002 02:04:35 +0100 Message-ID: <20021229010434.GB2444@mobile> References: <1041044851.5964.32.camel@ganga> Mime-Version: 1.0 Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com Content-Disposition: inline In-Reply-To: <1041044851.5964.32.camel@ganga> List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Tuomas Jormola Cc: reiserfs-list@namesys.com On Sat, Dec 28, 2002 at 05:07:31AM +0200, Tuomas Jormola wrote: > Hello, > > I'd be happy to use ReiserFS support services if they can help me here, > but I'd like post this question to the mailing list before paying since > PayPal doesn't support my bank so it's a bit troublesome to transfer the > money forth and back in case there's nothing to do in this case... > > I have a 110GiB LVM array constructed using EVMS. It consists of three > IDE hard disks from which the last one died the other day. The > filesystem is ReiserFS, of course. Array is a linear one and there was > about 15GiB free space when disk died so I'm hoping there was a somewhat > resonable way to recover the data on two disks that are full and in > front of the array. The failed disk is totally dead, not just a couple > of bad sectors. It spins but it's not detected on boot. When I try to > mount the volume with only two disks connected, it get this: > > sh-2029: reiserfs read_bitmaps: bitmap block (#19234816) reading failed > reiserfs_read_super: unable to read bitmap > > Someone already asked a question regarding this error: > http://marc.theaimsgroup.com/?l=reiserfs&m=101232163203836&w=2 > and Andreas Dilger provided with a clear answer but in this case it > probably doesn't work since so large part of the filesystem is missing. > Is someone able to say for sure if there's a chance to recover parts of > the filesystem or whether it can't be done? Perhaps you should have a look at evms, it is able to eport a LV with some missing disks. But of course every read to a sector on the missing disk will result in an io-error.