基于并行磁盘阵列的视频数据布局

Video Data Placement Based on Parallel Disk Array

分析了大规模视频存储服务器的性能指标要求、体系结构、数据布局和准入控制等问题,提出了基于并行磁盘阵列上的、可满足用户多QoS要求的、基于三层可扩展的MPEG2视频编码的多分段视频存储方案,比已有的平衡放置、周期放置等方案能提供更好的灵活性、更高的可扩展性。

In this paper, video server architecture is summarized common, the performance requirements, data placement and admission control problem,etc. ,of large-scale videl storage server is analyzed,a new data placement scheme and its admission control algorithm based on parallel disk arrays, which satisfies user' s multi QoS requirements is proposed, this scheme and algorithm is more flexible and expansibility than Balanced Placement and Periodic Placement.