视频存储服务器的准入控制策略

Admission control of video storage server

分析了大规模视频存储服务器的准入控制和基于磁盘系统的视频服务器的准入控制策略。提出了基于磁盘系统的为保证视频服务器接纳更大数目用户的比例法,即保证在每个服务周期中为每个用户要求检索到的数据块的数目与其对应的回放速率成比例,这种算法能够保证得到支持多用户媒体回放的稳态性和迁移态连续性的要求。与循环Robin法和穷举法相比,比例法是一个更好的选择。

This paper analyzes the admission controls of large-scale video storage server and the admission tactics of video server based on disk system. It proposes the rule of three which guarantees video storage server to admit more users. This rule of three is based on disk system. The data blocks searched by a user is guaranteed in proportion to its velocity of playback in service period. The rule of three is a better choice than periodic Robin and infinite particularization because this algorithm guarantees the requirements of (reliability) and continuity which sustain multi-user playback.