On Wed, Aug 23, 2006 at 09:57:04AM -0400, James Foronda wrote:
> Hi,
> 
> [EMAIL PROTECTED] cat /etc/release
>                            Solaris Nevada snv_33 X86
>           Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.
>                        Use is subject to license terms.
>                           Assembled 06 February 2006
> 
> I have zfs running well on this box.  Now, I want to upgrade to Solaris 
> 10 6/06 release. 
> 
> Question: Will the 6/06 release recognize the zfs created by snv_33?  I 
> seem to recall something about being at a certain release level for 6/06 
> to be able to import without problems.. I searched the archives but I 
> can't find where I read that anymore.

Yes, new releases of Solaris can seamlessly access any ZFS pools created
with Solaris Nevada or 10 (but not pools from before ZFS was integrated
into Solaris, in October 2005).

However, once you upgrade to build 35 or later (including S10 6/06), do
not downgrade back to build 34 or earlier, per the following message:

        Summary: If you use ZFS, do not downgrade from build 35 or later to
        build 34 or earlier.

        This putback (into Solaris Nevada build 35) introduced a backwards-
        compatable change to the ZFS on-disk format.  Old pools will be
        seamlessly accessed by the new code; you do not need to do anything
        special.

        However, do *not* downgrade from build 35 or later to build 34 or
        earlier.  If you do so, some of your data may be inaccessible with the
        old code, and attemts to access this data will result in an assertion
        failure in zap.c.

        We have fixed the version-checking code so that if a similar change
        needs to be made in the future, the old code will fail gracefully with
        an informative error message.

After upgrading, you should consider running 'zpool upgrade' to enable
the latest features of ZFS, including ditto blocks, hot spares, and
double-parity RAID-Z.

--matt
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Reply via email to