From owner-freebsd-fs@FreeBSD.ORG Wed May 4 11:55:43 2011 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0612B106564A for ; Wed, 4 May 2011 11:55:43 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from qmta13.emeryville.ca.mail.comcast.net (qmta13.emeryville.ca.mail.comcast.net [76.96.27.243]) by mx1.freebsd.org (Postfix) with ESMTP id E1FE28FC14 for ; Wed, 4 May 2011 11:55:42 +0000 (UTC) Received: from omta18.emeryville.ca.mail.comcast.net ([76.96.30.74]) by qmta13.emeryville.ca.mail.comcast.net with comcast id fPqs1g0021bwxycADPviun; Wed, 04 May 2011 11:55:42 +0000 Received: from koitsu.dyndns.org ([67.180.84.87]) by omta18.emeryville.ca.mail.comcast.net with comcast id fPvg1g00f1t3BNj8ePvhTd; Wed, 04 May 2011 11:55:41 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id 82ACE102C36; Wed, 4 May 2011 04:55:40 -0700 (PDT) Date: Wed, 4 May 2011 04:55:40 -0700 From: Jeremy Chadwick To: Robert Schulze Message-ID: <20110504115540.GA88625@icarus.home.lan> References: <4DC13260.4020905@bytecamp.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4DC13260.4020905@bytecamp.net> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: freebsd-fs@freebsd.org Subject: Re: zfs/zpool upgrade required? X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 May 2011 11:55:43 -0000 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 |