zfs discuss - Oct 2009 - corrupt metadata on upgrade from 2008.11 to 2009.06

I just upgraded my machine from 2008.11 to 2009.06 with pkg install
image-update, and that all seemed to go fine.

Now, however, my 5 disk raidz is complaining about corrupted metadata. However,
if I reboot back into 2008.11, it still works fine. I even can do things which I
think might check consistency, like export/import, resilver, even scrub. After
each try I reboot back into 2009.06 but still no love.

Is this the uberblock issue I''ve read about? Is there a good link
somebody can send me on how to fix it? Thanks!
-Oliver

Here''s the message:
  pool: tank
 state: FAULTED
status: The pool metadata is corrupted and the pool cannot be opened.
action: Destroy and re-create the pool from a backup source.
   see: http://www.sun.com/msg/ZFS-8000-72
 scrub: none requested
config:

        NAME        STATE     READ WRITE CKSUM
        tank        FAULTED      0     0     1  corrupted data
          raidz1    ONLINE       0     0     6
            c9t1d0  ONLINE       0     0     1
            c6d0    ONLINE       0     0     0
            c9t0d0  ONLINE       0     0     0
            c9t2d0  ONLINE       0     0     0
            c9t3d0  ONLINE       0     0     0
-- 
This message posted from opensolaris.org

More info - my device ids changed recently when I changed sata controllers (and
motherboards). My root pool is fine on a different disk.

The mystifying thing to me is that my raidz pool works great under 2008.11 and
not 2009.06. Was there a known change in functionality which could lead to the
appearance of corrupt pool metadata?

Any help would be appreciated as I''m at a loss here.

cheers,
-o
-- 
This message posted from opensolaris.org

Okay I fixed it - did an export/import under 111b and that seemed to work.
I''m not sure why I didn''t try that before!

On further examination, it seems that my /etc/zfs/zpool.cache didn''t
survive the pkg image-update properly - those files were different in my two
rpools whereas I''d have expected them to be the same.

cheers,
-o
-- 
This message posted from opensolaris.org