Date: Wed, 4 May 2011 04:55:40 -0700 From: Jeremy Chadwick <freebsd@jdc.parodius.com> To: Robert Schulze <rs@bytecamp.net> Cc: freebsd-fs@freebsd.org Subject: Re: zfs/zpool upgrade required? Message-ID: <20110504115540.GA88625@icarus.home.lan> In-Reply-To: <4DC13260.4020905@bytecamp.net> References: <4DC13260.4020905@bytecamp.net>
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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 |
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