ZFS unable to import pool

[Linda Kateley]

Have you tried to offline the disk? Then online the disk?

lk


On 4/22/14, 11:36 AM, Gena Guchin wrote:
> Ronald,
>
> system does see the disk, ada7, in this case. Nothing has been disconnected from the system.
>
> what steps do you suggest I take with GEOM?
>
>
> thanks!
>
>
> On Apr 22, 2014, at 2:49 AM, Ronald Klop <ronald-lists at klop.ws> wrote:
>
>> On Mon, 21 Apr 2014 21:29:27 +0200, Gena Guchin <ggulchin at icloud.com> wrote:
>>
>>> Hello FreeBSD users,
>>>
>>> my appologies for reposting, but I'd really need your help!
>>>
>>>
>>> I have this huge problem with my ZFS server. I have accidentally formatted one of the drives in exported ZFS pool. and now I can’t import the pool back. this is extremely important pool for me. device that is missing is still attached to the system. Any help would be greatly appreciated.
>>>
>>>
>>>
>>>
>>> #uname -a
>>> FreeBSD XXX 10.0-RELEASE FreeBSD 10.0-RELEASE #0 r260789: Thu Jan 16 22:34:59 UTC 2014     root at snap.freebsd.org:/usr/obj/usr/src/sys/GENERIC  amd64
>>>
>>> #zpool import
>>>   pool: storage
>>>     id: 11699153865862401654
>>> state: UNAVAIL
>>> status: One or more devices are missing from the system.
>>> action: The pool cannot be imported. Attach the missing
>>>        devices and try again.
>>>   see: http://illumos.org/msg/ZFS-8000-6X
>>> config:
>>>
>>>        storage                 UNAVAIL  missing device
>>>          raidz1-0              DEGRADED
>>>            ada3                ONLINE
>>>            ada4                ONLINE
>>>            ada5                ONLINE
>>>            ada6                ONLINE
>>>            248348789931078390  UNAVAIL  cannot open
>>>        cache
>>>          ada1s2
>>>        logs
>>>          ada1s1                ONLINE
>>>
>>>        Additional devices are known to be part of this pool, though their
>>>        exact configuration cannot be determined.
>>>
>>>
>>> # zpool list
>>> NAME    SIZE  ALLOC   FREE    CAP  DEDUP  HEALTH  ALTROOT
>>> zroot   920G  17.9G   902G     1%  1.00x  ONLINE  -
>>>
>>> # zpool upgrade
>>> This system supports ZFS pool feature flags.
>>>
>>> All pools are formatted using feature flags.
>>>
>>> Every feature flags pool has all supported features enabled.
>>>
>>> # zfs upgrade
>>> This system is currently running ZFS filesystem version 5.
>>>
>>> All filesystems are formatted with the current version.
>>>
>>>
>>> Thanks a lot!
>> Does FreeBSD see the disk? Is it in /dev/ada2 (or another number)?
>> If FreeBSD does not know anything about the disk, ZFS can't either. A reboot or some fiddling (partitioning?) with GEOM might make the disk reappear.
>>
>> Ronald.
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