def METHOD_NAME(self):
    """
    Clear disk/file creation
    """
    if self.file_type:
        if self.file_type == 'nvdimm':
            self.part_obj.unmount(force=True)
            self.plib.destroy_namespace(region=self.region, force=True)
            shutil.rmtree(self.mnt_dir)
        else:
            os.remove(self.back_file)