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Date:      Fri, 06 Feb 2015 01:34:53 +0100
From:      Michelle Sullivan <michelle@sorbs.net>
To:        "freebsd-fs@freebsd.org" <freebsd-fs@freebsd.org>
Subject:   Re: ZFS pool faulted (corrupt metadata) but the disk data appears ok...
Message-ID:  <54D40C2D.1070801@sorbs.net>
In-Reply-To: <54D3E9F6.20702@sorbs.net>
References:  <54D3E9F6.20702@sorbs.net>

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Michelle Sullivan wrote:
> Any clues on this?
>
> root@colossus:~ # zpool import
>    pool: storage
>      id: 10618504954404185222
>   state: FAULTED
>  status: The pool metadata is corrupted.
>  action: The pool cannot be imported due to damaged devices or data.
>     The pool may be active on another system, but can be imported using
>     the '-f' flag.
>    see: http://illumos.org/msg/ZFS-8000-72
>  config:
>
>     storage          FAULTED  corrupted data
>       raidz2-0       ONLINE
>         mfid0        ONLINE
>         mfid15       ONLINE
>         mfid1        ONLINE
>         mfid2        ONLINE
>         mfid3        ONLINE
>         mfid4        ONLINE
>         mfid5        ONLINE
>         replacing-7  ONLINE
>           mfid13     ONLINE
>           mfid14     ONLINE
>         mfid6        ONLINE
>         mfid7        ONLINE
>         mfid8        ONLINE
>         mfid9        ONLINE
>         mfid10       ONLINE
>         mfid11       ONLINE
>         mfid12       ONLINE
> root@colossus:~ # zpool import -Ff storage
> cannot import 'storage': I/O error
>     Destroy and re-create the pool from
>     a backup source.
>   

When running the import without -f says it may still be in use with the
date of a few hours ago (when the reboot occurred) also which might be
the key to the problem says (in dmesg/console):

ZFS filesystem version: 5
ZFS storage pool version: features support (5000)
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.
GEOM: mfid0: corrupt or invalid GPT detected.
GEOM: mfid0: GPT rejected -- may not be recoverable.


-- 
Michelle Sullivan
http://www.mhix.org/




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