ZFS unable to import pool

[Linda Kateley]

also although it is not the preferred method, i have deleted the 
zpool.cache file in the past, rebooted and then retried the import(but 
on solaris). That should rebuild the information the system knows about 
the pool.

I think it is saying it is the top level vdev is missing, not the disk 
itself according to the message id.

On 4/22/14, 11:54 AM, Gena Guchin wrote:
> Linda,
>
> the pool is exported. I can't import it back in.
> I can't offline or online while the pool is exported.
>
>
> :(
>
> On Apr 22, 2014, at 9:39 AM, Linda Kateley <lkateley at kateley.com> wrote:
>
>> 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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