zpool upgrade - is it safe?

[krad]

2010/1/12 Rolf Nielsen <listreader at lazlarlyricon.com>

> On 2010-01-12 22:57, krad wrote:
>
>>
>>
>> 2010/1/12 Rolf Nielsen <listreader at lazlarlyricon.com
>> <mailto:listreader at lazlarlyricon.com>>
>>
>>
>>    Hi all,
>>
>>    I just upgraded to a more recent version of 8.0-STABLE, and I
>>    noticed during boot that zfs had changed from version 13 to version
>>    14. Is it safe to run zpool upgrade -a on a system while in
>>    multiuser, or will I have to take some security measures, such as
>>    creating a complete backup and/or booting into singleuser?
>>
>>    Rolf Nielsen
>>    _______________________________________________
>>    freebsd-questions at freebsd.org <mailto:freebsd-questions at freebsd.org>
>>
>>    mailing list
>>    http://lists.freebsd.org/mailman/listinfo/freebsd-questions
>>    To unsubscribe, send any mail to
>>    "freebsd-questions-unsubscribe at freebsd.org
>>    <mailto:freebsd-questions-unsubscribe at freebsd.org>"
>>
>>
>>
>> Its fine to upgrade a pool in multi user mode as it is with most things
>> zfs. However beware when up upgrade a pool as once you have you cant go
>> back, and if you want the revert to your previous install you wont be
>> able to. Therefore a general rule of thumb is unless you need a new
>> feature on a new pool version dont upgrade it. A least wait a few weeks
>> until your new install is fully bedded in and tested
>>
>
> Thanka. Since I have no idea what "passthrough-x aclinherit support" does
> and I've been fine without it so far, I guess I'll stick with version 13 for
> now then. :)
>

v22 is what we want as it has dedup