'Prepare for using the storage.'

def connect_storage(self):

    self.storage_info['pool_id'] = self.get_pool_id()
    if (self.storage_info['pool_id'] is None):
        msg = utils.output_log(MSG.POOL_NOT_FOUND, pool=self.conf.vsp_pool)
        raise exception.VSPError(msg)
    utils.output_log(MSG.SET_CONFIG_VALUE, object='DP    Pool    ID', value=self.storage_info['pool_id'])
