粗波分复用技术在同城容灾系统中的应用  

Application of course wavelength division multiplexing to disaster recovery in metropolitan area networks

作　　者：秦磊华[1] 余胜生[1] 周敬利[1] 蔡昭权[2] 

机构地区：[1]华中科技大学计算机科学与技术学院,湖北武汉430074 [2]惠州学院教育技术中心,广东惠州516001

出　　处：《华中科技大学学报（自然科学版）》2008年第1期85-87,共3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：为满足降低数据丢失风险,提高数据和应用系统可用性的需要,在研究粗波分复用技术特点的基础上,利用粗波分复用光电转换模块设计了存储扩展接口,对接口的电气特性进行了测试.测试结果表明:接口的电气特性良好,对信号具有放大的作用.同时,对基于该接口构建的城域网范围内光纤通道存储扩展系统原型的读写性能进行了测试,测试结果显示,20 km距离的存储读写吞吐率达到了14 Mbit/s,为构建同城容灾系统提供了一种新方法.On the basis of the characteristics of course wave division multiplexing （CWDM）, a kind of interface for storage extension was designed by using CWDM photoelectric conversion module to mitigate the risk of losing data and improved the availability of data and application systems. Electrical specification of the interface with CWDM was tested. The results showed that the performance of the interface with signal amplification was acceptable. Moreover, random read and write performance test of fiber channel disk array through the CWDM connectivity with the extension distance of 20 km was also performed. Its results showed that the throughput of this remote reand/write was 14 Mbit/s. Therefore, it was concluded that the new method is provided for building disaster recovery system within metrolitan area network.

关 键 词：容灾系统 粗波分复用 接口设计 电气特性 

分 类 号：TP309.3[自动化与计算机技术—计算机系统结构] TN929.1[自动化与计算机技术—计算机科学与技术]