From owner-freebsd-questions@FreeBSD.ORG Sun Jan 17 22:35:37 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 18B941065676 for ; Sun, 17 Jan 2010 22:35:37 +0000 (UTC) (envelope-from freebsd-questions@m.gmane.org) Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by mx1.freebsd.org (Postfix) with ESMTP id C327D8FC15 for ; Sun, 17 Jan 2010 22:35:36 +0000 (UTC) Received: from list by lo.gmane.org with local (Exim 4.50) id 1NWdiY-0003le-5b for freebsd-questions@freebsd.org; Sun, 17 Jan 2010 23:35:34 +0100 Received: from 193.33.173.33 ([193.33.173.33]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 17 Jan 2010 23:35:34 +0100 Received: from c.kworr by 193.33.173.33 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 17 Jan 2010 23:35:34 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-questions@freebsd.org From: Volodymyr Kostyrko Date: Mon, 18 Jan 2010 00:35:12 +0200 Lines: 28 Message-ID: References: <201001152334.52978.jmc-freebsd2@milibyte.co.uk> <201001161545.31616.pieter@degoeje.nl> <201001171639.41777.jmc-freebsd2@milibyte.co.uk> <4B534661.7030905@infracaninophile.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 193.33.173.33 User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.9.1.5) Gecko/20100116 Thunderbird/3.0 In-Reply-To: <4B534661.7030905@infracaninophile.co.uk> Sender: news Subject: Re: Newbie gmirror questions X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 17 Jan 2010 22:35:37 -0000 On 17.01.2010 19:18, Matthew Seaman wrote: > Mike Clarke wrote: > >> Actually I was more concerned about what happens when I boot into >> another OS like Windows or Linux on one of the spare slices - I'm >> assuming that I have to apply gmirror to the whole disk rather than >> just selected slices? > > You can't do this. gmirror is FreeBSD specific, and other OSes can't > deal with it. You can take your two drives, partition them (fdisk) and > then create a gmirror across the slices you assign to FreeBSD. Similarly > you could set up md to mirror the slice(s) used for Linux. As far as I > know, Windows doesn't come with OS level mirroring software -- it can use > hostraid[*], or I believe there are some commercial solutions you can > purchase. Or just treat your Windows partitions as two separate drives, > and live without resilience for that OS. I can correct you here. XP Pro and later do know about 'dynamic' disks and they can make mirrors from them. Booting from such disks is a kind pain in the ass but it works for RAID0, RAID1, RAID0+1 and RAID5 setup. I can be wrong, I'm not a Win-fan, I just do know this exists. You can find details here: http://support.microsoft.com/default.aspx/kb/816307 -- Sphinx of black quartz judge my vow.