0.7.2 Sabanda (revision 5543) - ZFS Pool - Faulted

[bigo]

So ive been out of the loop for some time due to some personal issues and need some help. I was running 0.7.2 Sabanda (revision 5543) on a machine and had 3 ZFS pools set up. The machine was giving me issues and it turned out to be that the USB stick that i was using for OS had become corrupted.

I finally got around to getting the machine up and running again via a fresh freenas install (still had the ISO) but when i synced the ZFS data only 2 pools came back to life. The one that is missing is my main array full of HD movies and i would hate to loose all of that data.

Here is the output of the Pool in question:

Code: Select all

  pool: Pool2tbEarsRz2
 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
        Pool2tbEarsRz2  FAULTED      0     0     1  corrupted data
          raidz2    ONLINE       0     0     6
            da1     ONLINE       0     0     0
            da2     ONLINE       0     0     0
            da3     ONLINE       0     0     0
            da4     ONLINE       0     0     0
            da5     ONLINE       0     0     0
            da6     ONLINE       0     0     0
            da7     ONLINE       0     0     0
            da8     ONLINE       0     0     0

Is there any way that i can save the data off of this array?

[bigo]

Come on guys, doesn't anyone have any suggestions?

I would hate to have to loose over 9TB of data and have to start all over again..

[raulfg3]

The problem is: The pool metadata is corrupted and the pool cannot be opened.

is not corrup data on disk, is corrupt metadata, so sorry, I don't know what to do.

[bigo]

Crap, that's not what i wanted to hear, took me over 2 years to amass that collection, and starting over will be a daunting task.

I have some sys admins at work that manage the sun/solaris clusters at work, ill see if they can possibly help me out, if so ill report back my findings.

[raulfg3]

Good luck, remember that is possible to boot from an OpenSolaris CD and try to mount / scrub your pool, so if you can go to work with your NAS, perhaps sysadmin can help you.

[bigo]

My sys admin told me to try to export then import the pool. He also stated that its probably all gone and im going to loose everything but its worth a shot.

If i wanted to try that open solaris method you describe, what type of commands would i need to do? My CLI skill are very limited so any direction would be very helpful.

[raulfg3]

use the same commands in Opensolaris that use in BSD:

zpool export <- to export pool
zpool import , etc..

see ZFS guide: http://docs.oracle.com/cd/E19253-01/819-5461/index.html