Date: Mon, 4 Apr 2011 07:37:15 -0700 From: Artem Belevich <art@freebsd.org> To: gerrit.kuehn@aei.mpg.de Cc: Bruce Cran <bruce@cran.org.uk>, =?ISO-8859-1?Q?Gerrit_K=FChn?= <gerrit@pmp.uni-hannover.de>, freebsd-stable@freebsd.org Subject: Re: drives >2TB on mpt device Message-ID: <BANLkTik5JwJDs4wRh3aRD7Y=sU7o3k1CqA@mail.gmail.com> In-Reply-To: <20110404160314.aef3ca92.gerrit@pmp.uni-hannover.de> References: <20110404150701.c5c050ff.gerrit@pmp.uni-hannover.de> <20110404143625.00002eb1@unknown> <20110404160314.aef3ca92.gerrit@pmp.uni-hannover.de>
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2011/4/4 Gerrit K=FChn <gerrit@pmp.uni-hannover.de>: > On Mon, 4 Apr 2011 14:36:25 +0100 Bruce Cran <bruce@cran.org.uk> wrote > about Re: drives >2TB on mpt device: > > Hi Bruce, > > BC> It looks like a known issue: > BC> http://www.freebsd.org/cgi/query-pr.cgi?pr=3Dbin/147572 > > Hm, I don't know if this is exactly what I'm seeing here (although the > cause may be the same): > I do not use mptutil. The controller is "dumb" (without actual raid > processor), and I intend to use it with zfs. However, I cannot even get > gpart to create a partition larger than 2TB, because mpt comes back with > only 2TB after probing the drive. As this is a problem that already exist= s > with 1 drive, I cannot use gstripe or zfs to get around this. > But the PR above states that this limitation is already built into mpt, s= o > my only chance is probably to try a different controller/driver (any > suggestions for a cheap 8port controller to use with zfs?), or to wait > until mpt is updated to support larger drives. Does anyone know if there > is already ongoing effort to do this? You're probably out of luck as far as 2Tb+ support for 1068-based HBAs: http://kb.lsi.com/KnowledgebaseArticle16399.aspx Newer controllers based on LSI2008 (mps driver?) should not have that limit= . --Artem
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