| 基于可变长数据分块的灾备数据恢复算法设计与实现 |
| |
| 引用本文： | 戴金辉,陈运,姚文斌,刘建毅,杨义先.基于可变长数据分块的灾备数据恢复算法设计与实现[J].成都信息工程学院学报,2010,25(6). |
| |
| 作者姓名： | 戴金辉 陈运 姚文斌 刘建毅 杨义先 |
| |
| 作者单位： | 成都信息工程学院信息安全研究所;北京邮电大学灾备技术国家工程实验室; |
| |
| 基金项目： | 四川省应用基础研究资助项目，成都市科技攻关计划资助项目 |
| |
| 摘 要： | 利用基于字节指纹极值特征的数据分块算法,设计并实现了一种灾备数据恢复方法.该方法对源数据和备份数据进行可变长数据分块,计算并比较对应数据块摘要值,确定源数据和备份数据的差异数据,采用差异数据拷贝的方法完成数据恢复.实现了对重复数据的有效检测,比完全数据拷贝节省32.79%-85.36%的网络带宽.
|
| 关 键 词： | 通信与信息系统 信息安全 容灾 灾难恢复 差异拷贝 |
Variable-Length Data Block Based Disaster Data Recovery Algorithm |
| |
| DAI Jin-hui,CHEN Yun,YAO Wen-bin,LIU Jian-yi,YAN Yi-xian.Variable-Length Data Block Based Disaster Data Recovery Algorithm[J].Journal of Chengdu University of Information Technology,2010,25(6). |
| |
| Authors: | DAI Jin-hui CHEN Yun YAO Wen-bin LIU Jian-yi YAN Yi-xian |
| |
| Institution: | DAI Jin-hui1,CHEN Yun1,YAO Wen-bin2,LIU Jian-yi2,YAN Yi-xian2(1.Information Security Institue,CUIT,Chengdu 610225,China,2.National Engineering Laboratory for Disaster Backup and Recovery,BUPT,Beijing 100876,China) |
| |
| Abstract: | Extreme characteristics of the fingerprint-based byte of data distribution algorithm,present a recovery algorithm of disaster data.Through the data block and the value of comparative digest between source and backup,using differential copy method to copy to complete data recovery.In all,this recover method detects duplicate data effectively,so it can save a large amount of network bandwidth. |
| |
| Keywords: | communication and information system information security disastertolerant system disaster recover differential copy |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
