计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (32): 119-122.DOI: 10.3778/j.issn.1002-8331.2010.32.033

• 数据库、信号与信息处理 • 上一篇    下一篇

采用位表的块级持续数据容灾系统研究

余承龙,李战怀,黄 英,胡 娜   

  1. 西北工业大学 计算机学院,西安 710129
  • 收稿日期:2009-07-21 修回日期:2009-09-21 出版日期:2010-11-11 发布日期:2010-11-11
  • 通讯作者: 余承龙

Research on block level continuous data tolerance system adopted on bit-table

YU Cheng-long,LI Zhan-huai,HUANG Ying,HU Na   

  1. Department of Computer Science,Northwestern Polytechnical University,Xi’an 710129,China
  • Received:2009-07-21 Revised:2009-09-21 Online:2010-11-11 Published:2010-11-11
  • Contact: YU Cheng-long

摘要: 提出了一种在块级持续数据容灾系统中建立备份位表和恢复位表的方法,有效消除数据恢复过程中冗余读写操作,提高了数据恢复的效率。实验证明,采用位表的块级持续数据容灾系统可以快速地将被保护数据卷恢复到之前任意时刻的正确状态。

Abstract: This paper presents a method of building backup bit-table and restore bit-table in block level continuous data tolerance system,improves the efficiency of data restore by eliminating redundant I/O operations during its procedure.It is proved by experiments that block level continuous data tolerance system adopted on bit-table can quickly restore protected data volume to any point in time accurately.

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