def _cleanup_lvm(self, instance):
    'Delete all LVM disks for given instance object.'
    disks = self._lvm_disks(instance)
    if disks:
        lvm.remove_volumes(disks)
Delete all LVM disks for given instance object.
def _cleanup_lvm(self, instance):
    
    disks = self._lvm_disks(instance)
    if disks:
        lvm.remove_volumes(disks)