[dm-devel] dm-cache: please check/repair metadata

[Zdenek Kabelac]

Dne 8.12.2016 v 02:36 Ian Pilcher napsal(a):
> I have a dm-cache device that throws the following error when I try to
> create it:
>
>  device-mapper: cache: 253:20: unable to switch cache to write mode until
> repaired.
>  device-mapper: cache: 253:20: switching cache to read-only mode
>  device-mapper: table: 253:20: cache: Unable to get write access to metadata,
> please check/repair metadata.
>  device-mapper: ioctl: error adding target to table
>
> How can I go about checking/repairing the metadata?
>


Hi

I'm sorry but you've attached so little information there is no way to
give you some useful hint.

We need to know kernel version, OS (distribution),  lvm2 version,
version of cache_check tools and likely some more (dmesg/messages log)

Also you need to attach  'dmsetup table'  & 'dmsetup status'
'lsblk'

You may get better results opening  bugzilla at:
https://bugzilla.redhat.com/enter_bug.cgi?product=LVM%20and%20device-mapper


Regards

Zdenek