root@koha-hw:~# lvcreate -s -L 10G -n vz-backup /dev/vg/vz
  Logical volume "vz-backup" created

root@koha-hw:~# test -d /mnt/vz-backup || mkdir /mnt/vz-backup

root@koha-hw:~# mount /dev/vg/vz-backup /mnt/vz-backup/

root@koha-hw:~# df /mnt/vz-backup/
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/vg-vz--backup
                     103212320  76571060  26641260  75% /mnt/vz-backup