From owner-freebsd-questions@FreeBSD.ORG Mon Feb 23 16:20:15 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 AFD0116A4CF for ; Mon, 23 Feb 2004 16:20:15 -0800 (PST) Received: from radicalv.com (secure.radicalv.com [216.118.91.10]) by mx1.FreeBSD.org (Postfix) with SMTP id 55B9A43D1D for ; Mon, 23 Feb 2004 16:20:15 -0800 (PST) (envelope-from ecrist@adtechintegrated.com) Received: (qmail 72524 invoked from network); 24 Feb 2004 00:20:04 -0000 Received: from unknown (HELO Nomad) (63.228.14.245) by mail.radicalv.com with SMTP; 24 Feb 2004 00:20:04 -0000 From: "Eric F Crist" To: "'Jerry McAllister'" , "'Richard Beyer'" Date: Mon, 23 Feb 2004 17:54:20 -0600 Message-ID: <006e01c3fa68$5ee9a8a0$6401a8c0@Nomad> X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2616 In-Reply-To: <200402232344.i1NNioR24698@clunix.cl.msu.edu> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Importance: Normal cc: 'FreeBSD Questions List' Subject: RE: backup 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: Tue, 24 Feb 2004 00:20:15 -0000 I've been looking for a solution for this, as well. I want RAID level copying, so I can just swap harddrives and be back up and running. If I have two identical 160GB HDD, on the same IDE cable (pri/sec), how would I accomplish this, and roughly how long would it take? Figure both HDD are full. Would I activate this by a script? Eric F Crist President AdTech Integrated Systems, Inc (612) 998-3588 -----Original Message----- From: owner-freebsd-questions@freebsd.org [mailto:owner-freebsd-questions@freebsd.org] On Behalf Of Jerry McAllister Sent: Monday, February 23, 2004 5:45 PM To: Richard Beyer Cc: 'FreeBSD Questions List' Subject: Re: backup > > We're currently doing a back up of a FreeBSD 4.9 (2) server by > plugging a USB external drive in and then doing > > cp /dev/ad0 /dev/da0 > > This takes about 30 hours, (USB 1). > > Is this the best way to do it, or can someone suggest a better way. > We'd rather not have the server offline while we do it. I would suggest using dump (and restore if you need something recovered) if you can because cp may not preserve everything appropriately. or dump | restore if you are trying to build the file system on to the other disk. I wonder also about your choice of devices, but I don't know how you created them or mounted them. Actually, I would use their mount names rather than devices anyway. Or am I missing something here? Using dump[/restore] won't speed anything up, but it would make sure it is usable later. ////jerry > > Cheers, > > Richard > _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"