From owner-freebsd-stable@FreeBSD.ORG Wed Jun 17 01:17:20 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A7A4C106564A for ; Wed, 17 Jun 2009 01:17:20 +0000 (UTC) (envelope-from andrew@areilly.bpa.nu) Received: from nschwqsrv02p.mx.bigpond.com (nschwqsrv02p.mx.bigpond.com [61.9.189.234]) by mx1.freebsd.org (Postfix) with ESMTP id 30ABA8FC14 for ; Wed, 17 Jun 2009 01:17:19 +0000 (UTC) (envelope-from andrew@areilly.bpa.nu) Received: from nschwotgx01p.mx.bigpond.com ([124.188.162.219]) by nschwmtas02p.mx.bigpond.com with ESMTP id <20090617005347.OUQS1863.nschwmtas02p.mx.bigpond.com@nschwotgx01p.mx.bigpond.com> for ; Wed, 17 Jun 2009 00:53:47 +0000 Received: from areilly.bpa.nu ([124.188.162.219]) by nschwotgx01p.mx.bigpond.com with ESMTP id <20090617005347.QNAD12022.nschwotgx01p.mx.bigpond.com@areilly.bpa.nu> for ; Wed, 17 Jun 2009 00:53:47 +0000 Received: (qmail 28145 invoked by uid 501); 17 Jun 2009 00:53:35 -0000 Date: Wed, 17 Jun 2009 10:53:35 +1000 From: Andrew Reilly To: Peter Jeremy Message-ID: <20090617005335.GA27257@duncan.reilly.home> References: <20090616185312.GJ9529@server.vk2pj.dyndns.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090616185312.GJ9529@server.vk2pj.dyndns.org> User-Agent: Mutt/1.4.2.3i X-RPD-ScanID: Class unknown; VirusThreatLevel unknown, RefID str=0001.0A150201.4A383E9B.0076:SCFSTAT4293986,ss=1,fgs=0 X-SIH-MSG-ID: rhoxFNT4TAD0zmQv0WC2OwcnyAzlq3Mv8Z4QX81loRIGTUDBp8PfStrEJvdRu8u4xD9LJhqFNGQjaajjTY3RstCK Cc: dan.naumov@gmail.com, freebsd-stable@freebsd.org, Pete French Subject: Re: Does this disk/filesystem layout look sane to you? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Jun 2009 01:17:20 -0000 On Wed, Jun 17, 2009 at 04:53:12AM +1000, Peter Jeremy wrote: > On 2009-Jun-15 09:57:39 +0100, Pete French wrote: > >In my expereince all the ones from the same manufacturer and model are > >exactly the same size. Admittedly I only ever buy SCSI, but that > >shouldnt make too much difference should it ? > > I have 3 Samsung HD103UJ disks and they have two different sizes: > two are 1953523055 and the third is 1953525168 sectors I bought a pair of identical WD 750G SATA drives the other day and was surprised to discover that they were different sizes: ad4: 715403MB at ata2-master SATA150 ad6: 715404MB at ata3-master SATA150 Luckily for me I built the file systems on ad4, and added ad6 to the gmirror configuration. I suspect that it would have been unhappy if I'd done it the other way around. Cheers, -- Andrew