Hello!
In order to create LVM snapshot you need to have free extents (PE blocks) in volume group at the client.
As we see in you log you don’t have free extents (0 extents, needs to be larger).
Therefore UrBackup could not make LVM snapshot.
For check free extents use this commands:
sudo vgdisplay
...
Free PE / Size 2559 / <10.00 GiB
For fix it:
You can reduce the lvm volume for have free extents or you can use dattobd snapshots instead LVM snapshots (I prerefere use dattobd).
For use dattobd additionally need (at the client):
-
Configured snapshot mechanism via /usr/local/etc/urbackup/snapshot.cfg
-
Install dattobd following the instructions at https://github.com/datto/dattobd, https://github.com/datto/dattobd/blob/master/INSTALL.md