Experiemntal results testify the validity of the proposed method,it improves the accessing performance of large file,and makes network attached optical jukebox suitable for massive storage system.

• 实验发现,网络光盘库中采用光盘镜像技术后,可以改善大数据文件的读出性能,为光盘库在海量存储系统中的应用、设计和性能优化提供理论方法和实验依据。