def METHOD_NAME(self):
    """ Pre Section for TestNVMeGetMandatoryFeatures """
    super().METHOD_NAME()
    self.setup_log_dir(self.__class__.__name__)
    self.feature_id_list = ["0x01", "0x02", "0x04", "0x05", "0x07",
                            "0x08", "0x09", "0x0A", "0x0B"]
    device = self.ctrl.split('/')[-1]
    get_vector_list_cmd = "grep " + device + "q /proc/interrupts |" \
                          " cut -d : -f 1 | tr -d ' ' | tr '\n' ' '"
    proc = subprocess.Popen(get_vector_list_cmd,
                            shell=True,
                            stdout=subprocess.PIPE,
                            encoding='utf-8')
    self.vector_list_len = len(proc.stdout.read().strip().split(" "))