Date: Mon, 4 Apr 2011 16:03:14 +0200 From: Gerrit =?ISO-8859-1?Q?K=FChn?= <gerrit@pmp.uni-hannover.de> To: Bruce Cran <bruce@cran.org.uk> Cc: freebsd-stable@freebsd.org Subject: Re: drives >2TB on mpt device Message-ID: <20110404160314.aef3ca92.gerrit@pmp.uni-hannover.de> In-Reply-To: <20110404143625.00002eb1@unknown> References: <20110404150701.c5c050ff.gerrit@pmp.uni-hannover.de> <20110404143625.00002eb1@unknown>
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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=bin/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 exists 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, so 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? cu Gerrit
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