'chvdisk command
svcask chvdisk -name <new_name_arg> -udid <vdisk_udid>
-open_access_scsi_id <vdisk_scsi_id> <vdisk_name> <vdisk_id>'

def _cmd_chvdisk(self, **kwargs):

    if ('obj' not in kwargs):
        return self._errors['CMMVC50000']
    source_name = kwargs['obj'].strip('\'"')
    dest_name = kwargs['name'].strip('\'"')
    vol = self._volumes_list[source_name]
    vol['name'] = dest_name
    del self._volumes_list[source_name]
    self._volumes_list[dest_name] = vol
    return ('', '')
