From owner-freebsd-questions@FreeBSD.ORG Thu Mar 18 10:24:22 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5F5A6106564A for ; Thu, 18 Mar 2010 10:24:22 +0000 (UTC) (envelope-from m.seaman@infracaninophile.co.uk) Received: from smtp.infracaninophile.co.uk (gate6.infracaninophile.co.uk [IPv6:2001:8b0:151:1::1]) by mx1.freebsd.org (Postfix) with ESMTP id B9EEC8FC26 for ; Thu, 18 Mar 2010 10:24:21 +0000 (UTC) Received: from seedling.black-earth.co.uk (seedling.black-earth.co.uk [81.187.76.163]) (authenticated bits=0) by smtp.infracaninophile.co.uk (8.14.4/8.14.4) with ESMTP id o2IAOHpX032161 (version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO); Thu, 18 Mar 2010 10:24:18 GMT (envelope-from m.seaman@infracaninophile.co.uk) Message-ID: <4BA1FF51.6010305@infracaninophile.co.uk> Date: Thu, 18 Mar 2010 10:24:17 +0000 From: Matthew Seaman Organization: Infracaninophile User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-GB; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: Erik Trulsson References: <23ed14b81003180137n61261b5axa22677a0a7bbe544@mail.gmail.com> <20100318100955.GA42170@owl.midgard.homeip.net> In-Reply-To: <20100318100955.GA42170@owl.midgard.homeip.net> X-Enigmail-Version: 1.0.1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Virus-Scanned: clamav-milter 0.95.3 at happy-idiot-talk.infracaninophile.co.uk X-Virus-Status: Clean X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIM_ADSP_ALL, SPF_FAIL autolearn=no version=3.3.0 X-Spam-Checker-Version: SpamAssassin 3.3.0 (2010-01-18) on happy-idiot-talk.infracaninophile.co.uk Cc: freebsd-questions , Andy Wodfer Subject: Re: Hardware RAID controller questions - 3Ware vs RocketRaid X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Mar 2010 10:24:22 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 18/03/2010 10:09:55, Erik Trulsson wrote: > On Thu, Mar 18, 2010 at 09:37:32AM +0100, Andy Wodfer wrote: >> Hi, >> We're setting up two backup servers where each server will have about 4TB of >> harddrives (for now) connected (4x1TB and 8x500GB drives). Last night we ran >> into trouble with the 3ware controllers we have (9650SE-8LPML) because we >> couldn't create a larger RAID5 than 1.99TB. > > > That is strange, since all the 3ware 9000-series controllers (including > the 9650) are supposed to be able to handle arrays larger than 2TB. Is it perhaps not a limitation in the 3ware controller, but rather the 2TB limit for a single slice imposed by the traditional DOS mbr? In which case, simply switching to using gpart(8) should solve the problem and let you have much larger filesystems. Cheers, Matthew - -- Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.14 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkuh/1EACgkQ8Mjk52CukIxwFQCfUsDOes4mAPBFLQUX6QvB/F97 4swAnRnKagfg86IG5gxBlMIBJOmmD7y+ =BGlc -----END PGP SIGNATURE-----