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Date:      Tue, 1 Dec 2009 11:29:35 -0500
From:      Zaphod Beeblebrox <zbeeble@gmail.com>
To:        =?ISO-8859-1?Q?Gerrit_K=FChn?= <gerrit@pmp.uni-hannover.de>
Cc:        freebsd-fs@freebsd.org
Subject:   Re: zfs/zpool upgrade
Message-ID:  <5f67a8c40912010829u1cc99b57ubde368413a8e53dd@mail.gmail.com>
In-Reply-To: <20091201133206.20754b2b.gerrit@pmp.uni-hannover.de>
References:  <20091201133206.20754b2b.gerrit@pmp.uni-hannover.de>

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2009/12/1 Gerrit K=FChn <gerrit@pmp.uni-hannover.de>

>
> I have one question concerning zfs and zpool upgrades:
>
> Some time ago I saw some postings here with procedures to upgrade to newe=
r
> zpool and zfs versions. These contained exporting and importing the pool
> (and upgrading in-between, of course :-).
> Is the export strictly neccessary? I have no machine where I could try it
> right now, but I think I did use zpool upgrade on imported and online
> pools before without noticing any problems.
>

I upgraded my ZFS pool and all that was required was "zpool upgrade"
followed by one "zfs upgrade" for each filesystem on the pool.  No
import/export was required.



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