def METHOD_NAME(vm, file_path):
    iotests.log("=== Successful image creation (explicit defaults) ===")
    iotests.log("")
    # 16 heads, 964 cyls/head, 17 secs/cyl
    # (Close to 128 MB)
    size = 16 * 964 * 17 * 512
    vm.blockdev_create({ 'driver': imgfmt,
                         'file': 'protocol-node',
                         'size': size,
                         'subformat': 'dynamic',
                         'force-size': False })