基于iSCSI带外虚拟化的研究与实现  

Research and implementation of iSCSI-based storage virtualization

作　　者：杨光[1] 周敬利[2] 

机构地区：[1]中南财经政法大学信息与安全工程学院,湖北武汉430000 [2]华中科技大学计算机科学与技术学院,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2010年第6期40-43,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(60373088)

摘　　要：基于iSCSI存储系统的实现通常采用带内方式,在此方式中数据流和命令流必须通过管理端向用户端和存储端转发,使系统的性能受到管理端的影响较大.为解决这一问题,采用一种带外方式,管理端只向用户端和存储端转发命令流,而数据流只在用户端和存储端之间交互,使得数据传输率比带内系统要快.实验证明了带外方式的性能要优于带内方式.iSCSI-based storage system includes three sides： host, manager, and store. Manager manages some stores and generates a unified, logical store pool to provide store services to host. According the method of forwarding at the manager side, iSCSI-based store virtualization was implemented in two ways： in band and out-of-band. Manager must transmits data stream and command stream to host and store in in-band way. By comparision, manager only transmits command stream to host and store in out-of-band way. Therefore, the out-of-band data transmission rate is higher than in-band system. After the two ways were implemented, the performance test results indicate that the performance of out-of-band was better than that of in-band.

关 键 词：网络存储 存储虚拟化 带内 带外 目标端 发起端 管理者 

分 类 号：TP332.2[自动化与计算机技术—计算机系统结构]