[linux-lvm] SOLVED [was: : pvmove of thinpool-metadata fail]

Oliver Rath rath at mglug.de
Sun May 14 20:45:24 UTC 2017

Hi list,

deactivating the whole vg with

vgchange -an dmivg

resulted a working

lvconvert --repair dmivg/winthinpool

after this, i was able to remove the "old" metadata on /dev/ram0 with

lvremove /dev/mapper/dmivg-winthinpoo_meta0

After this, i was able to reduce the vg with

vgreduce dmivg /dev/ram0


So all is fine now.


On 14.05.2017 19:00, Oliver Rath wrote:
> Hi list,
> Ive moved the _tmeta part of a thinpool to a (ramdisk) device for
> testing and wanted now to move it back to disk, but this fail:
> # pvmove -v -n /dev/mapper/dmivg-winthinpool_tmeta  /dev/ram0 /dev/sdg1
>   WARNING: Failed to connect to lvmetad. Falling back to device scanning.
>     Cluster mirror log daemon not included in build.
>     Wiping internal VG cache
>     Wiping cache of LVM-capable devices
>     Archiving volume group "dmivg" metadata (seqno 217).
>     Creating logical volume pvmove0
>     Moving 229 extents of logical volume dmivg/winthinpool_tmeta
>     activation/volume_list configuration setting not defined: Checking
> only host tags for dmivg/winthinpool_tmeta.
>     Setting up pvmove in on-disk volume group metadata.
>     Creating dmivg-pvmove0
>   device-mapper: create ioctl on dmivg-pvmove0
> LVM-EHcvL2Ube7wb2effdgOufgqLTeAS9K6fABDshfurJLvBuIPvuBMXLnlfGxHUNCc8
> failed: Device or resource busy
>   Failed to suspend winthinpool_tmeta
>   ABORTING: Temporary pvmove mirror activation failed.
> It seems, that pvmove is trying to create a mirror-device from *_tmeta
> on the target disk, but this seems to fail.
> The computer is still running, so do I have a possibility to save the
> situation? Can I transfer the *tmeta in another way?
> LVM und Thin-provisioning-tools are from git today.
> Tfh!
> Oliver

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