Date: Wed, 01 Aug 2007 15:37:54 +0100 From: Doug Rabson <dfr@rabson.org> To: Gergely CZUCZY <phoemix@harmless.hu> Cc: freebsd-fs@freebsd.org Subject: Re: ZFS on a shared disk Message-ID: <1185979074.1264.14.camel@herring.rabson.org> In-Reply-To: <20070801122122.GA59065@harmless.hu>
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On Wed, 2007-08-01 at 14:21 +0200, Gergely CZUCZY wrote: > Hello > > I've seen many checked ZFS in -CURRENT, and I've got > a question about ZFS in freebsd. I've never checked > -CURRENT, just thought of whether ZFS can do this or not. > > Let's assume there's a shared disk on a scsi bus, that's > attached to two boxes. Can that disk be used simultaneously > with ZFS on the two boxes at the same time? AFAIK UFS2 > is unable to do this, since it doesn't have any on-disk > synchronization and similar features, that would enable > an operation like this. ZFS does not support this at all. It has safeguards that should prevent you from using a pool on more than one machine. You can transfer ownership of the pool back and forth between two machines using 'zpool export' and 'zpool import'.home | help
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