一种高可扩展存储网络系统TH-MSNS的研究与实现  

TH-MSNS: A High Scalable Network Storage System

作　　者：舒继武[1] 薛巍[1] 李必刚[1] 郑纬民[1] 

机构地区：[1]清华大学计算机科学与技术系,北京100084

出　　处：《计算机学报》2005年第3期326-333,共8页Chinese Journal of Computers

基　　金：国家自然科学基金(60473101);国家"八六三"高技术研究发展计划项目基金重点项目(2001AA11111;2004AA111120);国家"九七三"重点基础研究发展规划项目基金(2004CB318205)资助.~~

摘　　要：网络存储系统对海量信息的存储与处理、数据的可伸缩性访问与可用以及数据的服务质量与存储安全等都具有重要意义.该文基于FCP设计并实现了一种可扩展存储区域网络系统TH MSNS,该系统可通过双HBA卡增加带宽和可用性,通过双 I/O节点机增加可靠性和可用性,通过多 I/O节点扩展容量至 260TB等.该文介绍了TH MSNS的体系结构、SCSI目标模拟器、嵌入式操作系统EOS和存储管理的设计技术与实现方法.该系统 SCSI目标模拟器采用分层设计并提供规范接口,可扩充不同的SCSI设备以及不同的网络连接协议;设计的核心软件在嵌入式操作系统的核心态通过内核模块实现,提高了效率;存储管理软件采用分布式结构,独立于操作系统,实现了对象管理、设备自动发现、访问控制、日志等管理功能.与同类系统相比,该系统具有效率高、扩展方便、易维护和兼容性好的特点.With the increasing demand for vast storage repositories, network storage becomes important to mass data storage and processing, scalable addressing and availability, the quality of service (QoS) and security of data storage. In this paper, authors gave a design and implementation of storage area network system with the name TH-MSNS, which has high scalability. With dual HBA, dual I/O nodes it has high availability and high performance, and the total capacity reaches on 260TB. An introduction of TH-MSNS's architecture, SCSI Target Simulator, embedded operating system (EOS) and storage management are given. The basewares of TH-MSNS have following characteristics: the SCSI Target Simulator adopts layered implementation, which provides compatibility for different SCSI devices and different network protocols; all key software run in the EOS kernel, which improves the performance greatly; storage management adopts distributed architecture. It is fully independent to OS and has functions such as the object management, device auto-detection, access controller and log, etc. Compared with other FC-SAN system, it shows some characters such as scalability, high performance, and high compatibility, and the whole system is easy to be maintained.

关 键 词：网络存储系统 SCSI规范 网络存储 SAN FCP 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]