From owner-freebsd-questions@FreeBSD.ORG Tue Aug 25 15:23:00 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7D207106568C for ; Tue, 25 Aug 2009 15:23:00 +0000 (UTC) (envelope-from freebsd-questions-local@be-well.ilk.org) Received: from mail5.sea5.speakeasy.net (mail5.sea5.speakeasy.net [69.17.117.7]) by mx1.freebsd.org (Postfix) with ESMTP id 550CF8FC18 for ; Tue, 25 Aug 2009 15:23:00 +0000 (UTC) Received: (qmail 2991 invoked from network); 25 Aug 2009 15:22:59 -0000 Received: from dsl092-078-145.bos1.dsl.speakeasy.net (HELO be-well.ilk.org) ([66.92.78.145]) (envelope-sender ) by mail5.sea5.speakeasy.net (qmail-ldap-1.03) with SMTP for ; 25 Aug 2009 15:22:59 -0000 Received: by be-well.ilk.org (Postfix, from userid 1147) id D45BB5082F; Tue, 25 Aug 2009 11:22:56 -0400 (EDT) To: kellymartin@gmail.com References: <1338880b0908241129p75b6845cg26d21804e118364@mail.gmail.com> <44y6p9q7rd.fsf@be-well.ilk.org> <4a939513.NMAP0NNWLEg7ayVF%perryh@pluto.rain.com> From: Lowell Gilbert Date: Tue, 25 Aug 2009 11:22:56 -0400 In-Reply-To: <4a939513.NMAP0NNWLEg7ayVF%perryh@pluto.rain.com> (perryh@pluto.rain.com's message of "Tue\, 25 Aug 2009 00\:38\:59 -0700") Message-ID: <44ocq3lxyn.fsf@be-well.ilk.org> User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.3 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: freebsd-questions@freebsd.org Subject: Re: hard disk failure - now what? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: freebsd-questions@freebsd.org List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Aug 2009 15:23:00 -0000 perryh@pluto.rain.com writes: > Lowell Gilbert wrote: >> Kelly Martin writes: >> > I just experienced a hard drive failure on one of my >> > FreeBSD 7.2 production servers with no backup! > ... >> First, try copying the entire disk, *without* mounting it. > > Yep. > >> Use dd(1) to get a copy of the whole disk. I believe that >> "conv=noerror" may be necessary. > > Much better: use sysutils/ddrescue, which was written > specifically to deal with this sort of situation. Excellent suggestion. -- Lowell Gilbert, embedded/networking software engineer, Boston area http://be-well.ilk.org/~lowell/