'Record the driver mapping information.
map_dict = {
\'slot_a\': {
\'0\': [1, 2, 3, 4]  # Slot A Channel 0 map lun 1, 2, 3, 4
\'slot_b\' : {
\'1\': [0, 1, 3]     # Slot B Channel 1 map lun 0, 1, 3'

@log_func
def _update_map_info(self, multipath=False):

    (rc, map_info) = self._execute('ShowMap')
    self._update_map_info_by_slot(map_info, 'slot_a')
    if (multipath and (self._model_type == 'R')):
        self._update_map_info_by_slot(map_info, 'slot_b')
    return map_info
