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计算机工程 ›› 2008, Vol. 34 ›› Issue (11): 255-257. doi: 10.3969/j.issn.1000-3428.2008.11.091

• 开发研究与设计技术 • 上一篇    下一篇

一种快速的差异备份方法

唐伟桐,刘晓洁,李 涛,胡晓勤,张洪亮,张 灿   

  1. (四川大学计算机学院,成都 610065)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-06-05 发布日期:2008-06-05

Fast Differential Backup Method

TANG Wei-tong, LIU Xiao-jie, LI Tao, HU Xiao-qin, ZHANG Hong-liang, ZHANG Can   

  1. (Computer College, Sichuan University, Chengdu 610065)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-06-05 Published:2008-06-05

摘要: 提出并实现一种快速的文件差异备份方法。通过快照管理、文件快速筛选、差异计算及差异远程重放,实现文件的快速差异备份,解决了文件的快速差异备份及长期困扰业界的文件重命名问题。实验证明该方法能够有效降低远程数据存储服务器负载,节约网络资源,提高系统资源利用率,降低用户的数据安全风险,并减少运行成本。

关键词: 快照, 差异备份, 重命名问题, 快速匹配

Abstract: A method of Fast Differential Backup(FDB) is proposed and implemented, by which the renaming problem that troubles industry for a long time is solved. Through applying the policies of snapshot management, file fast filtration, differential calculation and differential remote playback, the approach is put into practice. By experimental analysis, this method is proved to be able to reduce the overhead of remote storage server effectively, save network resource, improve the utilization rate of system resources, and reduce the customers’ data security risk and cost of running the backup system.

Key words: snapshot, differential backup, renaming problem, fast match

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