云存储系统中网络块设备的研究与应用  

Research and Application of Network Block Device in The Cloud Storage System

作　　者：韦伟[1] 李冰利 张伟东[1] 

机构地区：[1]中航工业第一飞机设计研究院,西安710089

出　　处：《计算机与数字工程》2015年第12期2243-2246,2270,共5页Computer & Digital Engineering

摘　　要：基于对大数据存储现状的深入研究,针对目前市场上云存储出现的各种磁盘可扩展性以及读写速率等问题,提出将网络块设备(Network Block Device)应用到云存储系统中。通过对Linux系统中网络块设备的实现原理进行分析,了解Hadoop HDFS的特点,并给出网络块设备在云存储中的实现原理和具体应用。实验表明,在云存储中使用网络块设备可以有效动态扩容,提高可扩展性,并不影响读写速率。Based on in-depth studying on the current status of the large data storage,Facing all kinds of disk problems which appears in current cloud storage on the market,such as extensibility and literacy rate,the method that the network block device applied to the cloud storage system is put forward.The realization of the network block device in Linux system principle is analyzed and the characteristics of Hadoop HDFS are understood,then implementation principle and practical application of the network block device applied in the cloud storage are showed in the article.The experimental results show that using the network block device applied in the cloud storage can improve the extendibility,and have little impact on the literacy rate.

关 键 词：网络块设备(NBD) 云存储 LINUX内核 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]