different than "xenvg" for Ganeti to use when creating instance
disks. This volume group must have the same name on all nodes. Once
the cluster is initialized this can be altered by using the
-**modify** command. Note that if the volume group is modified after
-the cluster creation, the metavg will have to be manually modified
-accordingly.
+**modify** command. Note that if the volume group name is modified after
+the cluster creation and DRBD support is enabled you might have to
+manually modify the metavg as well.
If you don't want to use lvm storage at all use
the ``--no-lvm-storage`` option. Once the cluster is initialized