Date: Wed, 17 Jun 2009 10:53:35 +1000 From: Andrew Reilly <andrew-freebsd@areilly.bpc-users.org> To: Peter Jeremy <peter@aspire.vk2pj.dyndns.org> Cc: dan.naumov@gmail.com, freebsd-stable@freebsd.org, Pete French <petefrench@ticketswitch.com> Subject: Re: Does this disk/filesystem layout look sane to you? Message-ID: <20090617005335.GA27257@duncan.reilly.home> In-Reply-To: <20090616185312.GJ9529@server.vk2pj.dyndns.org> References: <cf9b1ee00906150139g77725cdeu43a1a8d14cd99fa9@mail.gmail.com> <E1MG80Z-000KOZ-K5@dilbert.ticketswitch.com> <20090616185312.GJ9529@server.vk2pj.dyndns.org>
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On Wed, Jun 17, 2009 at 04:53:12AM +1000, Peter Jeremy wrote: > On 2009-Jun-15 09:57:39 +0100, Pete French <petefrench@ticketswitch.com> 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 <WDC WD7500AACS-00D6B1 01.01A01> at ata2-master SATA150 ad6: 715404MB <WDC WD7500AACS-00D6B1 01.01A01> 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
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