From owner-freebsd-questions Fri Jan 4 22:34:30 2002 Delivered-To: freebsd-questions@freebsd.org Received: from fedde.littleton.co.us (cfedde.dsl.frii.net [216.17.139.141]) by hub.freebsd.org (Postfix) with ESMTP id AA90937B41C for ; Fri, 4 Jan 2002 22:34:27 -0800 (PST) Received: from fedde.littleton.co.us (localhost [127.0.0.1]) by fedde.littleton.co.us (8.11.6/8.11.4) with ESMTP id g056YMx91713; Fri, 4 Jan 2002 23:34:22 -0700 (MST) Message-Id: <200201050634.g056YMx91713@fedde.littleton.co.us> To: Sean Ellis Cc: "ScaryG" , freebsd-questions@FreeBSD.ORG Subject: Re: Mirroring Hard Disk In-Reply-To: <62178761821.20020104222538@telus.net> From: Chris Fedde Date: Fri, 04 Jan 2002 23:34:22 -0700 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG 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