From owner-freebsd-questions@FreeBSD.ORG Mon Feb 23 19:12:10 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 2015916A4CE for ; Mon, 23 Feb 2004 19:12:10 -0800 (PST) Received: from relay.pair.com (relay.pair.com [209.68.1.20]) by mx1.FreeBSD.org (Postfix) with SMTP id 9101C43D2F for ; Mon, 23 Feb 2004 19:12:09 -0800 (PST) (envelope-from freebsd@stevenfettig.com) Received: (qmail 53249 invoked from network); 24 Feb 2004 03:12:08 -0000 Received: from c68.115.22.188.jvl.wi.charter.com (HELO stevenfettig.com) (68.115.22.188) by relay.pair.com with SMTP; 24 Feb 2004 03:12:08 -0000 X-pair-Authenticated: 68.115.22.188 Message-ID: <403AC0E3.30400@stevenfettig.com> Date: Mon, 23 Feb 2004 21:11:31 -0600 From: "Steven N. Fettig" User-Agent: Mozilla Thunderbird 0.5 (Macintosh/20040208) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Eric F Crist References: <006e01c3fa68$5ee9a8a0$6401a8c0@Nomad> In-Reply-To: <006e01c3fa68$5ee9a8a0$6401a8c0@Nomad> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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 03:12:10 -0000 Eric, I think what you are looking for is drive mirroring (which I think is known as RAID 1). Although I have never done this myself, the Handbook seems to give good pointers at: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/raid.html For more information on mirroring control, the man of ccdconfig: http://www.freebsd.org/cgi/man.cgi?query=ccdconfig&sektion=8 If you are looking at backup *philosophy* in general, though, mirroring doesn't cover it because a catastrophic system failure would simply be copied to the mirrored drive (or worse, in the case of an electrical failure - i.e. drive, board, controller burnout - you would lose everything). I only mention this because it has happened to me and I have been extremely thankful for my tape backups... Steve Fettig Eric F Crist wrote: >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 > > > >