private function readaixdata()
    {
        if (count($this->_aixdata) === 0) {
            if (CommonFunctions::executeProgram('prtconf', '', $bufr)) {
                $this->_aixdata = preg_split("/\n/", $bufr, -1, PREG_SPLIT_NO_EMPTY);
            }
        }

        return $this->_aixdata;
    }