Date: Fri, 01 Sep 2000 11:03:52 +0200 (CEST) From: Micke Josefsson <mj@isy.liu.se> To: David Larkin <David.Larkin@djl.co.uk> Cc: questions@FreeBSD.ORG Subject: RE: Disk Backup (Mirroring ?) Message-ID: <XFMail.000901110352.mj@isy.liu.se> In-Reply-To: <39AE72A9.345E0B3F@DJL.co.uk>
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On 31-Aug-00 David Larkin wrote: > Hi, > > I've recently installed 4.0. > > The machine has 2 identical disks > > ad0: 9768MB <ST310212A> [19846/16/63] at ata0-master using UDMA33 > ad1: 9768MB <ST310212A> [19846/16/63] at ata0-slave using UDMA33 > > I've installed FreeBSD on ad0, and ad1 is a virgin disk. > > I want to periodically back up ad0 to ad1 so that if ad0 goes pop, > I simply swap them around, reboot, and I'm up and running again, > even if it is a week or two out of date. > > I'm pretty sure I saw a way of doing this on the mailing list a while > ago, that was why I bought the 2 identical disks. > > I can't find this solution now. I keep finding references to vinum, > which > I'm not sure I really need. vinum works great for this and is not really that tricky to setup. The positive side is that you do not need to reboot when a disk fails, vinum keeps reading from the other disk. You will a reboot when installing a new disk I believe. Apart from that I *think* you can use rdist (man rdist(1)) if you want to do it 'manually'. /Micke PS. If going the vinum way, read what to do when having to replace a faulty disk. You have to manually regenerate the new disk from the old disk's contents etc. ---------------------------------- Michael Josefsson, MSEE mj@isy.liu.se This message was sent by XFMail running on FreeBSD 3.5-STABLE ---------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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