zfs discuss - Jan 2011 - serious problem plz need your help ( I/O error)

Hi all,
I got a serious problem when I have upgraded my zpool !! (big mistake)
I have booted from opensolaris milax 05, to import my rpool 
I got some errors like 
----------------------
zpool import -fR /mnt rpool
milax zfs : WARNING can''t open objset for rpool/zpnes/z-email/ROOT
milax zfs : WARNING can''t open objset for rpool/zpnes/z-web/ROOT
cannot iterate filesystem I/O error
----------------------
pool: rpool
 state: ONLINE
status: One or more devices has experienced an error resulting in data
        corruption.  Applications may be affected.
action: Restore the file in question if possible.  Otherwise restore the
        entire pool from backup.
   see: http://www.sun.com/msg/ZFS-8000-8A
 scrub: none requested 
config:

        NAME        STATE     READ WRITE CKSUM
        rpool         ONLINE       0     0     7
          c4d0s0     ONLINE       0     0     28


errors: Permanent errors have been detected in the following files: 

                        rpool/data:<0x1>
                        rpool/backup:/databases/db.sql.gz
                        rpool/software:<0x1>
                        rpool/ROOT/opensolaris-1:/etc/inet/hotsts
[...]
---------------------
zfs list 
cannot iterate filesystem I/O error
cannot iterate filesystem I/O error
NAME                             USED   AVAIL REFER  MOUNTPOINT
rpool                             17.9G   667G   30K   /mnt/rpool
[...]

---------------------
zfs mount rpool/ROOT/opensolaris-1      <---- OK

cp /mnt/etc/hosts /root/hosts              <---- OK

ls /root                                                 <---- no thing 

cat /mnt/etc/hosts 
cat: Input error on /mnt/etc/hosts: I/O error


so I can''t restore my files , please help me to restore my database 
thanks in advance
-- 
This message posted from opensolaris.org

Maybe this can be of help: (ZFS Administration Guide)

http://docs.sun.com/app/docs/doc/819-5461/gavwg?a=view
-- 
This message posted from opensolaris.org

thank you very much, but My data was corrupted I have re-installed my OS
thank you again
-- 
This message posted from opensolaris.org