From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.12.11.20060308/8.11.6) with ESMTP id k35JYWcH027473 for ; Wed, 5 Apr 2006 15:34:32 -0400 Received: from mail.volved.com (c-71-192-139-98.hsd1.ma.comcast.net [71.192.139.98]) by mx3.redhat.com (8.13.1/8.13.1) with ESMTP id k35JYQEV021211 for ; Wed, 5 Apr 2006 15:34:26 -0400 Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.volved.com (Postfix) with ESMTP id E25D81B7F for ; Wed, 5 Apr 2006 14:41:11 -0400 (EDT) Received: from mail.volved.com ([127.0.0.1]) by localhost (monolith [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 10658-12 for ; Wed, 5 Apr 2006 14:41:09 -0400 (EDT) Received: from [192.168.0.210] (unknown [192.168.0.210]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.volved.com (Postfix) with ESMTP id 0CC1C1B7E for ; Wed, 5 Apr 2006 14:41:09 -0400 (EDT) Message-ID: <44340F46.5040000@volved.com> Date: Wed, 05 Apr 2006 14:41:10 -0400 From: Barnaby Claydon MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [linux-lvm] Bad disk removal Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: LVM general discussion and development Hey all, So after lots of scans and log review, turns out 1 of the 8 IDE disks in my LVM is bad. (I know, IDE, yeahyeah...) I currently have the affected volume group online, and it's mounted in XFS readonly,norecovery mode. XFS can't attempt repair because one of the bad sectors is the superblock so xfs_repair bombs. Unfortunately I don't have 1.2TB of free space available to try and pull all the data off the VG before rebuilding it and replacing the failed drive. If I get a replacement for the bad drive and extend the VG, my question would be: How fault tolerant is pvmove if it encounters unreadable/bad sectors on a disk? Will I hose the entire VG if pvmove bombs? Will pvmove skip the bad sectors after a few attempts and move on? Will pvmove refuse to even try? I'm sure someone's had experience with this before. :) (Obviously I don't have RAID underneath the LVM, otherwise I'm sure this would be moot... lesson learned.) Thanks all, -Barnaby