| 远程复制系统数据一致性研究与实现 |
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| 引用本文： | 凌宗虎,李先国,韩志勇.远程复制系统数据一致性研究与实现[J].计算机应用,2005,25(11):2638-2640. |
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| 作者姓名： | 凌宗虎 李先国 韩志勇 |
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| 作者单位： | 西北工业大学,计算机学院,陕西,西安,710072;西北工业大学,计算机学院,陕西,西安,710072;西北工业大学,计算机学院,陕西,西安,710072 |
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| 摘 要： | 针对远程数据复制容灾系统中的数据一致性问题，提出了保证数据一致性和视图一致性并优化系统性能的实现思想，即使用日志卷记录用户请求顺序，通过保持主、从两端数据卷上数据块的更新顺序来保证数据一致性，对于不同的数据类型采用不同的传输方法。论述了它的组织结构、实现流程以及关键技术。
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| 关 键 词： | 数据一致性 日志 原子数据 |
| 文章编号： | 1001-9081（2005）11-2638-03 |
| 收稿时间： | 2005-05-17 |
| 修稿时间： | 2005-05-17 |
Design and implementation of data consistency of remote data replicating system |
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| LING Zong-hu,LI Xian-guo,HAN Zhi-yong.Design and implementation of data consistency of remote data replicating system[J].journal of Computer Applications,2005,25(11):2638-2640. |
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| Authors: | LING Zong-hu LI Xian-guo HAN Zhi-yong |
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| Affiliation: | School of Computer Science,Northwestern Polytechnical University,Xi’an Shaanxi 710072,China |
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| Abstract: | A method was presented to keep data consistency and data view consistency and to optimize system performance in a remote disaster-tolerate data replication system.It used log volume to record the user's acquirement,and maintained data consistency by keeping block update order between primary and backup volumes,and adopted different transport methods according to different data types.The architecture,implementation method and key techniques of the method were discussed. |
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| Keywords: | data consistency log atomic data |
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