IP存储广域网的性能研究  

Research on Performance of IP Storage Wide Area Network

作　　者：崔宝江[1] 熊伟[1] 王刚[1] 刘璟[1] 

机构地区：[1]南开大学计算机科学系,天津300071

出　　处：《计算机科学》2004年第10期50-52,60,共4页Computer Science

基　　金：国家自然科学基金(60273031);高校博士点科研基金(20020055021);南开大学科研启动基金的资助

摘　　要：由于光纤的传输距离有限,使FC SAN的连接距离受到限制。IP存储广域网利用IP网络存储技术扩展了主机与存储设备的连接距离,提供了广域网范围内块级数据的访问。文中对IP存储广域网的结构、性能进行了研完,提出了IP存储广域网的系统性能评价模型,为评价和改进IP存储广域网的系统性能提供了理论依据。理论分析和测试结果表明,虽然影响IP存储广域网性能的因素有很多,但当网络带宽低于存储设备吞吐率时,IP广域网网络带宽成为决定IP存储广域网最大系统吞吐率的决定因素。Since the transmission distance of optical fiber is not very long, FC with optical fiber limits SAN to a small region. IP storage wide area network(SWAN)connect geographically separated host and storage device over long distances, and it transports block storage traffic in WAN range using IP-based storage technology. The architecture and performance of IP SWAN are researched in this paper, and a performance evaluation model for IP SWAN is presented. The model offers a theoretic foundation to evaluate and improve IP SWAN's performance. Also there are many factors which impact the throughput of IP SWAN, the result of both the model and experiment shows that IP WAN's bandwidth is the major factor which impacts on the max throughput of IP SWAN, when IP WAN's bandwidth is lower than storage device's throughput.

关 键 词：IP存储 广域网 存储设备 连接距离 吞吐率 网络带宽 SAN 传输距离 光纤 系统性能评价 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] TP333[自动化与计算机技术—计算机科学与技术]