| 一种基于数据差异的逻辑卷快速同步方法 |
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| 引用本文： | 詹求翔,王春露,生拥宏,鞠大鹏,汪东升. 一种基于数据差异的逻辑卷快速同步方法[J]. 计算机工程与应用, 2010, 46(1): 61-63. DOI: 10.3778/j.issn.1002-8331.2010.01.020 |
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| 作者姓名： | 詹求翔 王春露 生拥宏 鞠大鹏 汪东升 |
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| 作者单位： | 北京邮电大学计算机学院,北京,100088;清华大学微处理器与片上系统技术研究中心,北京,100084 |
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| 摘 要： | 在数据保护系统中,经常需要对源卷和目的卷进行同步使彼此数据保护一致。提出了一种新的基于数据块的同步方法。该方法充分利用了源卷和目的卷的位图信息,在计算数据块的特征值时引入了动态算法。实验表明该方法显著地减少了同步数据量。
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| 关 键 词： | 逻辑卷 数据保护 数据同步 |
| 收稿时间： | 2008-09-24 |
| 修稿时间： | 2008-12-19 |
Fast logical volume synchronize method based on data difference |
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| ZHAN Qiu-xiang,WANG Chun-lu,SHENG Yong-hong,JU Da-peng,WANG Dong-sheng. Fast logical volume synchronize method based on data difference[J]. Computer Engineering and Applications, 2010, 46(1): 61-63. DOI: 10.3778/j.issn.1002-8331.2010.01.020 |
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| Authors: | ZHAN Qiu-xiang WANG Chun-lu SHENG Yong-hong JU Da-peng WANG Dong-sheng |
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| Affiliation: | 1.School of Computer Science and Technology,Beijing University of Posts and Telecommunications,Beijing 100088,China 2.Microprocessor and Soc Technology R & D Center,Tsinghua University,Beijing 100084,China |
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| Abstract: | Under data protection system,data between source volume and target volume needs to synchronize when data inconsistency occurs.This paper presents a new method which is based on block level data.It takes advantage of source volume and target volume's bitmap information,and introduces dynamic algorithm into the method when the digest value of block data is computed.Experiments show that it can dramatically reduce the synchronize data. |
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| Keywords: | logical volume data protection data synchronize |
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