RenameNonClusterLVM

When the logical volume is not part of the clustered group but is used in a cluster it is necessary to propagate dm changes by hand. When the volume is renamed one one node, the device path (e.g. /dev/lvgroup/LVM) is not changed on other nodes, so migrating a VPS that relies on the proper path would fail. To fix that, this is needed to run on every node in the cluster.

dmsetup ls | grep <old LV name>  # to check if the old name exists
dmsetup rename <LV group>-<old LV name> <LV group>-<new LV name>