高性能多协议目标器的设计与实现

发布时间：2018-06-18 01:16

本文选题：网络存储 + 磁盘阵列　；参考：《华中科技大学》2012年硕士论文

【摘要】：面对网络云时代数据爆炸式的增长，企业对存储产品的容量与传输速率的要求与日俱增。磁盘阵列是构建存储系统的关键基础设备，而SCSI(SmallComputerSystemInterface)目标器作为阵列控制器中关键组成部分之一，它直接决定了磁盘阵列与服务器间传输速率的上限，目标器的设计应紧跟相关硬件的发展。FC（FibreChannel）协议和iSCSI(internetSCSI)协议作为目标器首选的主流协议，应优先予以支持。分析Linux通用目标器子系统的功能及其内部体系结构，研究实现多协议目标器的方案，分别阐述目标器对输入/输出请求的处理流程。以一个正在进行的磁盘阵列控制器项目为基础，基于Linux通用目标器子系统，在磁盘阵列系统上构建通用的多协议目标器结构，同时支持FC协议与iSCSI协议。最后，，采用测试工具对多协议目标器模块进行性能评测。测试结果表明，FC目标器的性能优越，最高数据传输率可达450MByte/s；iSCSI目标器运行稳定，且最高能达到90%以上网络利用率。
[Abstract]:Faced with the explosive growth of data in the era of network cloud, the demand for storage capacity and transmission rate is increasing day by day. Disk array is the key equipment for building storage system. As one of the key components of array controller, SCSIN SmallComputer system Interface (SCSI) directly determines the upper limit of transmission rate between disk array and server. The design of the target device should follow the development of the related hardware. FCU FibreChannelProtocol and iSCSIN internetSCSIprotocol should be the preferred mainstream protocols for the target device and should be supported first. This paper analyzes the function of Linux general target subsystem and its internal architecture, studies the scheme of implementing multi-protocol target, and expounds the processing flow of input / output request. Based on an ongoing disk array controller project, a general multi-protocol target structure is constructed on disk array system based on Linux universal target subsystem, and FC protocol and iSCSI protocol are supported at the same time. Finally, the performance of multi-protocol target module is evaluated by testing tools. The test results show that the performance of the FC target is superior, the maximum data transmission rate can reach 450 MByte / s / s SCSI target, and the maximum can reach 90% network utilization rate.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP333

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