Date: Mon, 23 Feb 2004 17:54:20 -0600 From: "Eric F Crist" <ecrist@adtechintegrated.com> To: "'Jerry McAllister'" <jerrymc@clunix.cl.msu.edu>, "'Richard Beyer'" <richard@planet-richard.com> Cc: 'FreeBSD Questions List' <freebsd-questions@freebsd.org> Subject: RE: backup Message-ID: <006e01c3fa68$5ee9a8a0$6401a8c0@Nomad> In-Reply-To: <200402232344.i1NNioR24698@clunix.cl.msu.edu>
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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"
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