It ’ s a pc cluster running linux named network storage cluster ( nss ) . it ’ s a linux block level implementation and is transparent to file systems . using pc cluster , it ’ s scalable and low - cost implementation 根据tns数据布局的特点,本文提出了基于linuxpccluster结构的存储系统体系结构的设计方案? ?网络存储集群( nss : networkstoragecluster )系统。
It shows that the tns has high reliability and its reliability can be improved if applications require . it has good performance in degrade and the system is easy to implement . based on the data layout , we have designed storage system architecture 与其它多容错数据布局相比, tns数据布局具有下列优点:可靠性高,并且可以根据实际应用需要提高系统可靠性;采用两级校验单元散布的设计,提高了系统降级状态下的性能;系统配置灵活,实现简单、方便。
We summarized common video server architecture , analyzed the performance requirements , data placement and admission control problem , etc . , of large - scale video storage server . we propose a new data placement scheme and its admission control algorithm based on parallel disk arrays , which can satisfy user ' s multi - qos requirements 就大规模视频服务器的存储体系结构、性能指标要求、数据布局和准入控制等问题进行了分析，提出了基于并行磁盘阵列、可满足用户多qos要求的、大规模视频服务器存储体系结构及调度算法。
