From owner-freebsd-questions@FreeBSD.ORG Wed Dec 8 11:29:21 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C904E16A4CE for ; Wed, 8 Dec 2004 11:29:21 +0000 (GMT) Received: from mta08-winn.mailhost.ntl.com (mailhost.ntl.com [212.250.162.8]) by mx1.FreeBSD.org (Postfix) with ESMTP id 14CE643D5A for ; Wed, 8 Dec 2004 11:29:21 +0000 (GMT) (envelope-from scott@fishballoon.org) Received: from aamta01-winn.mailhost.ntl.com ([212.250.162.8]) by mta08-winn.mailhost.ntl.com with ESMTP <20041208112919.DTBG24423.mta08-winn.mailhost.ntl.com@aamta01-winn.mailhost.ntl.com>; Wed, 8 Dec 2004 11:29:19 +0000 Received: from llama.fishballoon.org ([82.4.146.133]) by aamta01-winn.mailhost.ntl.com with ESMTP <20041208112918.YNLT27146.aamta01-winn.mailhost.ntl.com@llama.fishballoon.org>; Wed, 8 Dec 2004 11:29:18 +0000 Received: from tuatara.fishballoon.org ([192.168.1.6]) by llama.fishballoon.org with esmtp (Exim 4.43 (FreeBSD)) id 1Cc00X-000MGE-AQ; Wed, 08 Dec 2004 11:29:22 +0000 Received: (from scott@localhost) by tuatara.fishballoon.org (8.13.1/8.13.1/Submit) id iB8BUDbC012936; Wed, 8 Dec 2004 11:30:13 GMT (envelope-from scott) Date: Wed, 8 Dec 2004 11:30:13 +0000 From: Scott Mitchell To: Stijn Hoop , orville weyrich , freebsd-questions@freebsd.org Message-ID: <20041208113013.GA12830@tuatara.fishballoon.org> References: <20041208054552.71553.qmail@web50708.mail.yahoo.com> <20041208100905.GA12684@tuatara.fishballoon.org> <20041208105255.GW39558@pcwin002.win.tue.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: <20041208105255.GW39558@pcwin002.win.tue.nl> User-Agent: Mutt/1.4.2.1i X-Operating-System: FreeBSD 4.10-STABLE i386 Subject: Re: Has anybody EVER successfully recovered VINUM? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 08 Dec 2004 11:29:21 -0000 On Wed, Dec 08, 2004 at 11:52:55AM +0100, Stijn Hoop wrote: > Scott, your procedure is what I have used, except for: >=20 > On Wed, Dec 08, 2004 at 10:09:05AM +0000, Scott Mitchell wrote: > > 6. Tell vinum to restart the failed subdisk: > >=20 > > # vinum start raid.p0.s0 > >=20 > > 7. Wait ages while the new disk is 'revived'. > >=20 > > I was quite impressed that the volume remained available with users > > accessing it throughout this procedure :-) >=20 > Yes I was too -- however I wasn't as impressed with the fact that I had > parity errors afterwards. Have you run 'vinum checkparity' after these > rebuilds? In my case I suffered data corruption... No, but I haven't seen any evidence of corruption in the ~1 year since the last time I did this, so I guess we got away with it. > AFAIK the only way to guarantee a consistent rebuild is to do it offline = (at > least in 4.x, haven't tested gvinum in 5.x yet). >=20 > > To play it safe you might want to unmount the volume before starting. >=20 > I *have* to. I normally would unmount first if possible, to make the rebuild run faster if nothing else. Guess I'll make sure to do so in future. Scott --=20 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Scott Mitchell | PGP Key ID | "Eagles may soar, but weasels Cambridge, England | 0x54B171B9 | don't get sucked into jet engines" scott at fishballoon.org | 0xAA775B8B | -- Anon