From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750873AbXBULGy (ORCPT ); Wed, 21 Feb 2007 06:06:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750962AbXBULGy (ORCPT ); Wed, 21 Feb 2007 06:06:54 -0500 Received: from ookhoi.xs4all.nl ([213.84.114.66]:48470 "EHLO cumulus.humilis.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750873AbXBULGx (ORCPT ); Wed, 21 Feb 2007 06:06:53 -0500 X-Greylist: delayed 1420 seconds by postgrey-1.27 at vger.kernel.org; Wed, 21 Feb 2007 06:06:53 EST Date: Wed, 21 Feb 2007 11:43:12 +0100 From: Sander To: Marc Perkel Cc: linux-kernel@vger.kernel.org Subject: Re: Need a little help with Software Raid 1 Message-ID: <20070221104312.GA2029@cumulus> Reply-To: sander@humilis.net References: <653453.23273.qm@web52506.mail.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <653453.23273.qm@web52506.mail.yahoo.com> X-Uptime: 11:20:35 up 1:37, 8 users, load average: 0.78, 3.25, 3.11 User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Marc Perkel wrote (ao): > I have a partition that used to be part of a software > raid 1 array. It is now loaded as /dev/sda3 but I'd > like to mirror it to /dev/sdb3 without losing the data > on the drive. I'm a little nervous about how to set it > up as I don't want to wipe out the data. > > How do I do this? Using FC6 and up 2 date software. Create a degraded raid1 on /dev/sdb3, mount the degraded raid1, copy the data over from /dev/sda3 to the degraded raid1, umount /dev/sda3 and add it to the degraded raid1 to make it non-degraded. With kind regards, Sander -- Humilis IT Services and Solutions http://www.humilis.net