[linux-lvm] Check of pool ernie/cache failed (status:1). Manual repair required!
Marian Csontos
mcsontos at redhat.com
Tue Jun 5 08:14:16 UTC 2018
On 06/04/2018 01:50 PM, Dennis Schridde wrote:
> Hello!
>
> On Tuesday, 15 May 2018 13:15:55 CEST Zdenek Kabelac wrote:
>> To get direct access to metadata - you could use your latest lvm2 2.02.177
>> build (or even 'git master'). In these recent versions there is added
>> support to activate directly these 'subLVs'. So with latest lvm2 you can:
>>
>> lvchange -ay vg/lv_cmeta
>
> This command was only successful in LVM 2.02.178-rc1, but failed in 2.02.177.
>
>> and then you can capture content of this LV via 'dd' into file
>> and compress and attach 'xz' compressed to BZ.
>
> I created a report in bugzilla [4], but since the `cache_cmeta` LV appears to
> contain parts of my personal files, I cannot attach it. However, I gained
It definitely should not. _cdata is where fragments you your data are
stored, and _cmeta contains only metadata (e.g. counters and references
to cdata.)
If there really are fragments of data in _cmeta LV, something must have
gone wrong elsewhere.
> access to the metadata LV now and would be able to provide you access to
> certain specific parts of it, if requested.
>
> My goal is still to gain access to as much of the data as possible.
>
> --Dennis
>
> [4]: https://bugzilla.redhat.com/show_bug.cgi?id=1585670
>
>
>
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