Date: Wed, 4 May 2011 16:21:37 +0100 From: krad <kraduk@gmail.com> To: Jeremy Chadwick <freebsd@jdc.parodius.com> Cc: freebsd-fs@freebsd.org Subject: Re: zfs/zpool upgrade required? Message-ID: <BANLkTimdsgsx%2Bem88zE73oVQyGj8d_6wnw@mail.gmail.com> In-Reply-To: <20110504115540.GA88625@icarus.home.lan> References: <4DC13260.4020905@bytecamp.net> <20110504115540.GA88625@icarus.home.lan>
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On 4 May 2011 12:55, Jeremy Chadwick <freebsd@jdc.parodius.com> wrote: > On Wed, May 04, 2011 at 01:02:56PM +0200, Robert Schulze wrote: > > when upgrading from 8.0 to 8-STABLE, kernel and userland support new > > versions of ZFS pool and filesystem. > > > > Is it _required_ to upgrade existing pools and filesystems or can > > that be done anytime later? > > - It can be done later, though by not upgrading you lose the ability to > use newer features. For a list of what those are, refer to the > official OpenSolaris docs. See menu on left side, near bottom: > > http://hub.opensolaris.org/bin/view/Community+Group+zfs/whatis > > - Make sure to note that the pool version and the filesystem version are > separate. Some folks remember to "zpool upgrade" but not "zfs upgrade". > > - Remember that upgrading is one-way; you cannot roll back to an older > version without destroying your pools. If you're worried, do full > backups beforehand. > > -- > | Jeremy Chadwick jdc@parodius.com | > | Parodius Networking http://www.parodius.com/ | > | UNIX Systems Administrator Mountain View, CA, USA | > | Making life hard for others since 1977. PGP 4BD6C0CB | > > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" > Generally in production i would leave it on the old pool version for a while, until you are confident you are not having any issues. As previously stated you can then roll back more easily. When you are happy upgrade the pool.
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