From owner-freebsd-fs@FreeBSD.ORG Mon Dec 10 22:43:32 2007 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4EE9816A418 for ; Mon, 10 Dec 2007 22:43:32 +0000 (UTC) (envelope-from fbsd-fs@mawer.org) Received: from outbound.icp-qv1-irony-out3.iinet.net.au (outbound.icp-qv1-irony-out3.iinet.net.au [203.59.1.148]) by mx1.freebsd.org (Postfix) with ESMTP id C381F13C4E9 for ; Mon, 10 Dec 2007 22:43:31 +0000 (UTC) (envelope-from fbsd-fs@mawer.org) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgAAAH5IXUfLzq3r/2dsb2JhbAAI X-IronPort-AV: E=Sophos;i="4.24,148,1196607600"; d="scan'208";a="192641991" Received: from unknown (HELO [10.24.1.1]) ([203.206.173.235]) by outbound.icp-qv1-irony-out3.iinet.net.au with ESMTP; 11 Dec 2007 07:13:58 +0900 Message-ID: <475DBA36.3020101@mawer.org> Date: Tue, 11 Dec 2007 09:14:14 +1100 From: Antony Mawer User-Agent: Thunderbird 2.0.0.9 (Windows/20071031) MIME-Version: 1.0 To: freebsd-fs@freebsd.org References: <20071210201734.GA16012@VARK.MIT.EDU> <475DAF79.9080900@nokia.com> <20071210214936.GA16598@VARK.MIT.EDU> In-Reply-To: <20071210214936.GA16598@VARK.MIT.EDU> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: RAID 1 via ataraid(4) X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Dec 2007 22:43:32 -0000 On 11/12/2007 8:49 AM, David Schultz wrote: > On Tue, Dec 11, 2007, David Cecil wrote: >> Hi David, >> >> there's no reason you can't mirror the rootfs using gmirror. We do it >> all the time. > > Good point, thanks. I'd forgotten that gmirror stores its metadata > at the end of the drive instead of at the beginning as ccd does. > Nevertheless, I'd be interested in what people's experiences have > been with ataraid(4), particularly since it's more flexible in > terms of putting multiple operating systems on different > partitions of the same mirror. I don't think ataraid does automatic rebuilds when you replace the drive... from memory I think you need to manually kick off a rebuild process after replacing one of the drives. --Antony