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.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
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)
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
network storage
storage virtualization
in-band
out of-band
target
initiator
manager
