Fwd: ZFS unable to import pool
Gena Guchin
ggulchin at icloud.com
Tue Apr 22 01:06:37 UTC 2014
Begin forwarded message:
> From: Gena Guchin <ggulchin at icloud.com>
> Subject: Re: ZFS unable to import pool
> Date: April 21, 2014 at 3:18:43 PM PDT
> To: Hakisho Nukama <nukama at gmail.com>
>
> Hakisho,
>
> this is weird, while I do not see ONLINE next to cache device ada1s2, it is the same device as logs ada1s1, just different slice.
> I tried to see the difference between zfs labels on that device.
>
>
> [gena at ggulchin]-pts/0:57# zdb -l /dev/ada1s2
> --------------------------------------------
> LABEL 0
> --------------------------------------------
> version: 5000
> state: 4
> guid: 7108193965515577889
> --------------------------------------------
> LABEL 1
> --------------------------------------------
> version: 5000
> state: 4
> guid: 7108193965515577889
> --------------------------------------------
> LABEL 2
> --------------------------------------------
> version: 5000
> state: 4
> guid: 7108193965515577889
> --------------------------------------------
> LABEL 3
> --------------------------------------------
> version: 5000
> state: 4
> guid: 7108193965515577889
> [gena at ggulchin]-pts/0:58# zdb -l /dev/ada1s1
> --------------------------------------------
> LABEL 0
> --------------------------------------------
> version: 5000
> name: 'storage'
> state: 1
> txg: 14792113
> pool_guid: 11699153865862401654
> hostid: 3089874380
> hostname: 'ggulchin.homeunix.com'
> top_guid: 15354816574459194272
> guid: 15354816574459194272
> is_log: 1
> vdev_children: 3
> vdev_tree:
> type: 'disk'
> id: 1
> guid: 15354816574459194272
> path: '/dev/ada1s1'
> phys_path: '/dev/ada1s1'
> whole_disk: 1
> metaslab_array: 125
> metaslab_shift: 27
> ashift: 9
> asize: 16100884480
> is_log: 1
> DTL: 137
> create_txg: 10478480
> features_for_read:
> --------------------------------------------
> LABEL 1
> --------------------------------------------
> version: 5000
> name: 'storage'
> state: 1
> txg: 14792113
> pool_guid: 11699153865862401654
> hostid: 3089874380
> hostname: 'ggulchin.homeunix.com'
> top_guid: 15354816574459194272
> guid: 15354816574459194272
> is_log: 1
> vdev_children: 3
> vdev_tree:
> type: 'disk'
> id: 1
> guid: 15354816574459194272
> path: '/dev/ada1s1'
> phys_path: '/dev/ada1s1'
> whole_disk: 1
> metaslab_array: 125
> metaslab_shift: 27
> ashift: 9
> asize: 16100884480
> is_log: 1
> DTL: 137
> create_txg: 10478480
> features_for_read:
> --------------------------------------------
> LABEL 2
> --------------------------------------------
> version: 5000
> name: 'storage'
> state: 1
> txg: 14792113
> pool_guid: 11699153865862401654
> hostid: 3089874380
> hostname: 'ggulchin.homeunix.com'
> top_guid: 15354816574459194272
> guid: 15354816574459194272
> is_log: 1
> vdev_children: 3
> vdev_tree:
> type: 'disk'
> id: 1
> guid: 15354816574459194272
> path: '/dev/ada1s1'
> phys_path: '/dev/ada1s1'
> whole_disk: 1
> metaslab_array: 125
> metaslab_shift: 27
> ashift: 9
> asize: 16100884480
> is_log: 1
> DTL: 137
> create_txg: 10478480
> features_for_read:
> --------------------------------------------
> LABEL 3
> --------------------------------------------
> version: 5000
> name: 'storage'
> state: 1
> txg: 14792113
> pool_guid: 11699153865862401654
> hostid: 3089874380
> hostname: 'ggulchin.homeunix.com'
> top_guid: 15354816574459194272
> guid: 15354816574459194272
> is_log: 1
> vdev_children: 3
> vdev_tree:
> type: 'disk'
> id: 1
> guid: 15354816574459194272
> path: '/dev/ada1s1'
> phys_path: '/dev/ada1s1'
> whole_disk: 1
> metaslab_array: 125
> metaslab_shift: 27
> ashift: 9
> asize: 16100884480
> is_log: 1
> DTL: 137
> create_txg: 10478480
> features_for_read:
>
>
> does this mean SSD drive is corrupted?
> is my pool lost forever?
>
> thanks!
>
>
> On Apr 21, 2014, at 2:24 PM, Hakisho Nukama <nukama at gmail.com> wrote:
>
>> Hi Gena,
>>
>> there are several options to import a pool, which might work.
>> It looks like only one device is missing in raidz1, so the pool
>> could be importable, if the cache device is also available.
>> Try to connect it back, this can cause an non-importable pool.
>>
>> Try reading the zpool man page and investigate into following flags:
>> zpool import -F -o readonly=on
>>
>> Best Regards,
>> Nukama
>>
>> On Mon, Apr 21, 2014 at 7:29 PM, 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!
>>>
>>> — Gena
>>> _______________________________________________
>>> freebsd-fs at freebsd.org mailing list
>>> http://lists.freebsd.org/mailman/listinfo/freebsd-fs
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>
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