zfs/zpool upgrade required?

[krad]

On 4 May 2011 22:53, Guido Falsi <mad at madpilot.net> wrote:

> On 05/04/11 13:55, Jeremy Chadwick 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.
>>
>>
> I'd add, if he's booting off of zfs, that it is very important to upgrade
> the boot code as soon as he upgrades the pool or he will have trouble
> booting the system which could be a pain to recover at that point.
>
> --
> Guido Falsi <mad at madpilot.net>
>
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yep, probably worth using these for the time being as they are the most
uptodate boot code bits

http://people.freebsd.org/~pjd/zfsboot/
<http://people.freebsd.org/~pjd/zfsboot/>