From owner-freebsd-fs@FreeBSD.ORG Wed Jan 17 11:05:08 2007 Return-Path: X-Original-To: freebsd-fs@FreeBSD.org Delivered-To: freebsd-fs@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 08F7116A412 for ; Wed, 17 Jan 2007 11:05:07 +0000 (UTC) (envelope-from trhodes@FreeBSD.org) Received: from chipmunk.ai.net (axe.ai.net [205.134.161.26]) by mx1.freebsd.org (Postfix) with ESMTP id AF1BC13C480 for ; Wed, 17 Jan 2007 11:05:07 +0000 (UTC) (envelope-from trhodes@FreeBSD.org) Received: from localhost (net-ix.gw.ai.net [205.134.160.6] (may be forged)) by chipmunk.ai.net (8.13.4/8.13.4) with SMTP id l0HAlsVN084486 for ; Wed, 17 Jan 2007 05:47:54 -0500 (EST) (envelope-from trhodes@FreeBSD.org) Date: Wed, 17 Jan 2007 05:47:43 -0500 From: Tom Rhodes To: freebsd-fs@FreeBSD.org Message-Id: <20070117054743.1922dd6e.trhodes@FreeBSD.org> In-Reply-To: <20070117103935.GC4018@genius.tao.org.uk> References: <20070117103935.GC4018@genius.tao.org.uk> Organization: The FreeBSD Project X-Mailer: Sylpheed version 1.0.6 (GTK+ 1.2.10; i386-portbld-freebsd7.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Subject: Re: gmirror disks vs partitions 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: Wed, 17 Jan 2007 11:05:08 -0000 On Wed, 17 Jan 2007 10:39:36 +0000 Josef Karthauser wrote: > A poll for opinions if I may? > > I've got a few gmirrors running on various machines, all of which > pair up two drives at the physical level (i.e. mirror /dev/ad0s1 > with /dev/ad1s1). Of course there are other ways of doing it to, > like mirroring at the partition level, ie pairing /dev/ad0s1a with > /dev/ad1s1a, /dev/ad0s1e with /dev/ad0s1e, etc. > > Apart from potentially avoiding a whole disk from being copied > during a resync after a crash, are there any other advantages to > using partition level mirroring instead of drive level mirroring? Would you replace the disk anyway? -- Tom Rhodes