From owner-freebsd-questions Mon Dec 18 12:30:11 2000 From owner-freebsd-questions@FreeBSD.ORG Mon Dec 18 12:30:09 2000 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mail.monkeys.com (236.dsl9226.rcsis.com [63.92.26.236]) by hub.freebsd.org (Postfix) with ESMTP id 2E68D37B400 for ; Mon, 18 Dec 2000 12:30:09 -0800 (PST) Received: from monkeys.com (236.dsl9226.rcsis.com [63.92.26.236]) by mail.monkeys.com (8.11.1/8.11.1) with ESMTP id eBIKSiW13668; Mon, 18 Dec 2000 12:28:44 -0800 (PST) To: ericdano@jazz-sax.com Cc: Christopher Farley , freebsd-questions@FreeBSD.ORG Subject: Re: Backing up a file system... How do I preserve the file flags? In-reply-to: Your message of Mon, 18 Dec 2000 12:17:36 -0800. <3A3E70E0.9AA146F8@jazz-sax.com> Date: Mon, 18 Dec 2000 12:28:44 -0800 Message-ID: <13666.977171324@monkeys.com> From: "Ronald F. Guilmette" Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message <3A3E70E0.9AA146F8@jazz-sax.com>, you wrote: >Why not just RAID them? That's an interesting idea, but please tell me, can I ``just RAID'' a pre-existing filesystem that is only present one one of the two disk drives in question? It seems to me like it is a chicken-and-egg problem. To RAID these two drives together, they should both have identical contents to begin with correct? But if I knew how to achieve that state, then my problem would already be (mostly) solved. I mean hay! If I can replicate all of the data from one drive to the other... well... that's essentially what I was trying to do in the first place anyway, so if I can do that, then I don't need to RAID anything. P.S. Yes, I guess that I could perhaps just dd everything from one raw disk device to the other, but I have trouble convining myself that doing that is really a safe thing to do, in particular when the input raw disk device is home to a live file system which is actually mounted at the present moment. (What if some of the file systems's directory entires change as I am doing the dd?) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message