From owner-freebsd-geom@FreeBSD.ORG Mon Aug 28 13:54:21 2006 Return-Path: X-Original-To: freebsd-geom@freebsd.org Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E0C2A16A4DA for ; Mon, 28 Aug 2006 13:54:21 +0000 (UTC) (envelope-from anderson@centtech.com) Received: from mh1.centtech.com (moat3.centtech.com [207.200.51.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4B03843D58 for ; Mon, 28 Aug 2006 13:54:16 +0000 (GMT) (envelope-from anderson@centtech.com) Received: from [10.177.171.220] (neutrino.centtech.com [10.177.171.220]) by mh1.centtech.com (8.13.1/8.13.1) with ESMTP id k7SDsEVl094157; Mon, 28 Aug 2006 08:54:16 -0500 (CDT) (envelope-from anderson@centtech.com) Message-ID: <44F2F586.6060600@centtech.com> Date: Mon, 28 Aug 2006 08:54:14 -0500 From: Eric Anderson User-Agent: Thunderbird 1.5.0.5 (X11/20060802) MIME-Version: 1.0 To: Alastair Watts References: <20060828132846.81472.qmail@web30308.mail.mud.yahoo.com> <44F2F3C5.7090001@pett.com.au> In-Reply-To: <44F2F3C5.7090001@pett.com.au> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.87.1/1744/Mon Aug 28 07:05:13 2006 on mh1.centtech.com X-Virus-Status: Clean Cc: "R. B. Riddick" , freebsd-geom@freebsd.org Subject: Re: gvinum behaviour on disk failure X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Aug 2006 13:54:22 -0000 On 08/28/06 08:46, Alastair Watts wrote: > R. B. Riddick wrote: [..snip..] >>> Yes... I noticed gvinum was very different to Greg's original vinum >>> suite ;) But this seems to be a fundamental thing that's missing from >>> gvinum - the ability to recover from a drive failure and to be able to >>> service the request from a different plex. >> Hmm... Does gmirror overcome these drawbacks? > > Don't know. If it doesn't then it's still a problem in my opinion :) We > have more machines using gmirror than gvinum (only 1 with gvinum), but > so far only the machine with gvinum has had a drive fail since FBSD 5.3 > upwards. I've had a drive that belonged to a mirrored die before, and didn't notice it until I logged in to the machine and poked around, so it did do its job. I've also had a drive in a gmirror go bad, and it hung the whole box, but that isn't gmirrors' fault as far as I know. Eric -- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology Anything that works is better than anything that doesn't. ------------------------------------------------------------------------