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大规模多媒体点播系统需要海量的存储空间,采用层次化存储结构是一个合理的方案。文章给出了视频点播层次化存储系统的结构,针对光盘库的特性,提出了一种基于光盘库的二级库调度与接纳算法及相应的缓冲磁盘管理方法。并给出了一种二级库系统驱动器的配置。
Large-scale multimedia on-demand system requires massive storage space, the use of hierarchical storage structure is a reasonable solution. In this paper, the structure of hierarchical storage system for video on demand is given. According to the characteristics of optical disk library, an algorithm of secondary database scheduling and admission based on optical disk library and the corresponding buffer disk management method are proposed. And gives a two-tier system drive configuration.