Volume groups used for virtual shared disks must be given a global name that is unique across system partitions.
This task is always done but you do not always have to perform it. The Create... actions and the comparable createvsd and createhsd commands do this for you. You only have to do this explicitly if you need to use the Define... action or defvsd command to create your virtual shared disks because you already have logical volumes.
You can use the Run Command... action and run the vsdvg command to define global volume groups.