From owner-freebsd-fs@FreeBSD.ORG Sun Mar 11 23:55:28 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 831E31065670 for ; Sun, 11 Mar 2012 23:55:28 +0000 (UTC) (envelope-from markm-lists@intellasoft.net) Received: from mail.mystoragebox.com (mail.mystoragebox.com [64.27.7.19]) by mx1.freebsd.org (Postfix) with ESMTP id 6A2878FC12 for ; Sun, 11 Mar 2012 23:55:28 +0000 (UTC) Received: from cpe-67-240-79-210.nycap.res.rr.com ([67.240.79.210] helo=[192.168.35.110]) by mail.mystoragebox.com with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1S6sHu-00050y-6n for freebsd-fs@freebsd.org; Sun, 11 Mar 2012 19:34:54 -0400 Message-ID: <4F5D3B70.3010607@intellasoft.net> Date: Sun, 11 Mar 2012 19:55:28 -0400 From: Mark Murawski User-Agent: Mozilla/5.0 (X11; Linux i686; rv:10.0.2) Gecko/20120216 Thunderbird/10.0.2 MIME-Version: 1.0 CC: freebsd-fs@freebsd.org References: <4F5C4FF8.7080000@intellasoft.net> <20120311225032.GA19883@DataIX.net> In-Reply-To: <20120311225032.GA19883@DataIX.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: How to change a guid of a zfs device? X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 11 Mar 2012 23:55:28 -0000 That would imply data loss. I did some digging and found some specs on the zfs metadata. There's four copies of the zfs metadata on the disk, two in the beginning, two at the end. I disk-edited and changed the guid stored in the zfs vdev headers and that did the trick, it made the pool come back online for the (was /dev/ada1 disk). The problem remains of getting the other (was /dev/ada4s4) disk to sync back in so it can repair some damaged files. On 03/11/12 18:50, Jason Hellenthal wrote: > > Remove the device from the pool and zero the disk out and add it back to > the pool... > > On Sun, Mar 11, 2012 at 03:10:48AM -0400, Mark Murawski wrote: >> How would I go about changing a guid of a zfs physical device? There >> doesn't seem to be any options in zpool or zdb for doing guid changes. >> >> It's a long story, but through a series of drive swaps I've managed to >> really screw stuff up. >> >> Here's my current status >> >> NAME STATE READ WRITE CKSUM >> zstorage UNAVAIL 0 0 0 >> mirror-0 ONLINE 0 0 0 >> ada4 ONLINE 0 0 0 >> ada3 ONLINE 0 0 0 >> mirror-1 UNAVAIL 0 0 0 >> 14791054479353866913 UNAVAIL 0 0 0 was >> /dev/ada4s4 >> 5249816505308091368 UNAVAIL 0 0 0 was /dev/ada1 >> mirror-2 ONLINE 0 0 0 >> ada5 ONLINE 0 0 0 >> ada10 ONLINE 0 0 0 >> mirror-3 ONLINE 0 0 0 >> ada6 ONLINE 0 0 0 >> ada8 ONLINE 0 0 0 >> mirror-4 ONLINE 0 0 0 >> ada7 ONLINE 0 0 0 >> ada9 ONLINE 0 0 0 >> >> >> >> 14791054479353866913 is really /dev/ada1s4 now >> 5249816505308091368 is really /dev/ada0 now >> >> the problem is, zdb tells me that /dev/ada1 has a guid of >> 3184618752700174674 >> and zdb says /dev/ada0 has a guid of 16592948394566938185 >> >> I need to get these to match so that I can reconstruct the pool again >> >> >> >> >> >> >> >> >> >> >> _______________________________________________ >> freebsd-fs@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-fs >> To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" >