Date: Sat, 05 Jan 2002 07:57:15 -0600 From: jacks@sage-american.com To: Chris Fedde <chris@fedde.littleton.co.us>, Sean Ellis <sellis@telus.net> Cc: "ScaryG" <freymann@eagle.ca>, freebsd-questions@FreeBSD.ORG Subject: Re: Mirroring Hard Disk Message-ID: <3.0.5.32.20020105075715.01937458@mail.sage-american.com> In-Reply-To: <200201050634.g056YMx91713@fedde.littleton.co.us> References: <62178761821.20020104222538@telus.net>
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My main objective was to have the 2nd HD keep up with a current copy of the first HD and in the event the first (main one) failed, then I could just switch HD and reboot into the HD2... sounds like a good idea. Just need the right tools... Been looking at dump too, but thought there was a tool that would keep the two HDs sync'd, i.e., when a file changed on HD1, the HD2 would do the same. ...not sure Vinum will do this as it wants to copy partitions....(at first reading). At 11:34 PM 1.4.2002 -0700, Chris Fedde wrote: >On Fri, 4 Jan 2002 22:25:38 -0800 Sean Ellis wrote: > +------------------ > | When I recently asked about cloning a hard drive I was offered a > | couple of leads for a daily mirroring of a hard drive. I'm not > | sure if mirroring the drives on a daily basis would be suitable for > | what jacks is asking about, but I'd be interested for any comment on > | using rsync or dd as means of keeping two drives relatively > | synchronized. > +------------------ > >Depending on your needs, and your availability requirements, I'd >think of using dump | restore. You can use dd to do this kind of >thing but it will copy the whole disk (or partition). Including >all the parts that have not been used yet. this can take a long >time. Plus dd does not have any way to do incremental backups. A >big time saver for the huge modern drives. > >Rsync and rdist are good options too if you want to operate on a >directory hierarchy basis. Dump/Restore work on a file system basis. > >-- > Chris Fedde > >To Unsubscribe: send mail to majordomo@FreeBSD.org >with "unsubscribe freebsd-questions" in the body of the message > > Best regards, Jack L. Stone, Server Admin Sage-American http://www.sage-american.com jacks@sage-american.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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