From owner-freebsd-questions@FreeBSD.ORG Mon Jun 9 10:58:29 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2E1CB37B421 for ; Mon, 9 Jun 2003 10:58:29 -0700 (PDT) Received: from lyta.telenor.se (lyta.telenor.se [213.150.135.139]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7E32743F3F for ; Mon, 9 Jun 2003 10:58:27 -0700 (PDT) (envelope-from mark.rowlands@minmail.net) Received: from pcmob.mwr.se (62.5.66.76 [62.5.66.76]) by lyta.telenor.se (BMR ErlangTM/OTP 3.1) with ESMTP id 67282.179821.1055.1s3651301lyta ; Mon, 09 Jun 2003 19:30:21 +0200 From: Mark Rowlands Organization: qbranch To: freeBSD , questions@freebsd.org Date: Mon, 9 Jun 2003 19:29:14 +0200 User-Agent: KMail/1.5.2 References: <1055171436.1892.3.camel@big.dagerot.com> In-Reply-To: <1055171436.1892.3.camel@big.dagerot.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200306091929.15181.mark.rowlands@minmail.net> Subject: Re: RAID, Vinum and different disksizes X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Jun 2003 17:58:29 -0000 On Monday 09 June 2003 5:10 pm, freeBSD wrote: > I have three 120GB disks and one 170GB disk. The first three is forming > a raid-5 volume using Vinum and the last one is just fooling around > without any purpose. > > Can I add this 170GB to the raid5 volume in any way at all? I do realise > that I will loose 50Gb, but that's better than not using it at all. > from http://www.daemonnews.org/200002/vinum.html "Like striped plexes, RAID-5 plexes must have equal-sized subdisks and cannot currently be extended" from http://www.vinumvm.org/vinum/Future-directions.html "Extending striped and RAID-5 plexes is a slow complicated operation, but it is feasible." I am prepared, and desperately hope to be corrected on this but as far as I am aware it is only possible by backing up, recreating a new vinum configuration and restoring. As for losing 50gb I'll swap you a 120gb for the 170gb ;-)