摘要
基于对象存储(Object-based Storage,OBS)作为下一代互联网存储协议标准逐渐被人们所接受,基于时象存储设备(Object-based Storage Device,OSD)所具有的可扩展性和智能性能很好地支持应用程序的服务质量(Quality of Service,QoS)需求。本文分析了基于对象存储系统的QoS需求,讨论了如何把应用客户的QoS需求转化为QoS属性,扩展了OSD SCSI协议集标准,以支持QoS,接着采取量化分析方法对QoS进行了分析,详细分析应用客户和OSD之间QoS信息交互的工作过程,最后,紧密结合OSD的特性,给出OSD上的QoS三层模型Q-Model和一优化算法BRP。
Object-based storage（OBS）, considered as the next Internet storage protocol standard, has been accepting gradually. Obiect-hased storage device（OSD）can give more support on applications＇ Quality of Service（QoS）requirements. This paper firstly analyses object-based storage system＇s QoS requirements, discusses how to translate QoS requirements to QoS attributes and extends the OSD SCSI protocol standard to support QoS, then using quantify analysis method, analyses QoS and the process of communicating QoS information between application and OSD. finally, integrating the OSD＇s characters, the paper proposes a QoS three-layer model called QModel and an optimization arithmetic called BRP in OSD.
出处
《计算机科学》
CSCD
北大核心
2006年第9期89-92,127,共5页
Computer Science
基金
国家"九七三"重点基础研究发展规划资助项目(2004CB318201)。
