保证存储系统QoS的统计学访问控制算法

Statistical Admission Control Algorithm for Providing QoS Guarantee in Storage System

传统的访问控制算法采用有效带宽进行访问控制,效果并不理想。该文建立描述并发多媒体负载访问存储系统的排队论模型,提出基于统计学的存储系统访问控制算法。在保证多媒体应用QoS需求的同时,最大程度地利用系统资源。仿真试验结果表明,该算法具有较高的精确性。

The traditional admission control algorithms use the effective bandwidth to calculate the maximal number of the concurrent multimedia applications, but they either do not provide Quality of Service（QoS） guarantee perfectly or do not utility the resource efficiently. This paper establishes a queuing model that describes the concurrent multimedia workloads accessing storage systems, and a statistical admission control algorithm is derived form it. Simulation experiments prove the novel algorithm is accurate.