Date: Sat, 21 Apr 2007 00:52:45 +0200 From: Ollivier Robert <roberto@keltia.freenix.fr> To: freebsd-fs@freebsd.org Subject: Re: lazy mirror / live backup Message-ID: <20070420225245.GA95270@keltia.freenix.fr> In-Reply-To: <20070420232209.G4559@nux.eros.office> References: <20070420232209.G4559@nux.eros.office>
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According to Mike Wolman: > The problem with zfs is you cannot layer it as u can with the geom > classes. Yes and no. It is not as versatile as all geom classes I believe but on FreeBSD it is a geom provider. > For example if you want to create a failover zfs storage pool, if you make > the zfs pool out of gmirror devices with one being a local device and the > other being a ggatec device. You would then have your zfs raidz pool > replicated on a remote host. I do not think you can do this with zfs by > itself as you are not able to layer raidz pool ontop of a load of zfs > mirrors. On plain zfs yes, you can have that. zpool create tank raidz mirror da0 da1 mirror da2 da3 mirror da4 da5. (not tested) -- Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto@keltia.freenix.fr Darwin sidhe.keltia.net Kernel Version 8.8.2: Thu Sep 28 20:43:26 PDT 2006 i386
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