A novel file-level continuous data protection mechanism oriented service application

  • Authors:

  • Jiangjiang Wu;Jiangchun Ren;Yong Cheng;Songzhu Mei;Zhiying Wang

  • Affiliations:

  • National University of Defense Technology, Computer School, Changsha, China;National University of Defense Technology, Computer School, Changsha, China;National University of Defense Technology, Computer School, Changsha, China;National University of Defense Technology, Computer School, Changsha, China;National University of Defense Technology, Computer School, Changsha, China

  • Venue:
  • Proceedings of the Third International Conference on Internet Multimedia Computing and Service
  • Year:
  • 2011

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Abstract

Continuous Data Protection (CDP) technology is a good schema for ensuring the continuity and survival capability of the service applications. However, the existing continuous data protection technology is difficult to meet the requirements, which means more fine-grained, closely associated with the upper applications and efficient failure recovery capabilities. We have designed and implemented a file-level CDP mechanism oriented service applications. By monitoring the modification operation on the files associated with corresponding service, the system generates the data backup blocks sets, which increased depend on the time series. Meanwhile, the Sub-Fragment is designed to save storage overhead during the data protecting procedure. When the service failure occurs, a novel file data recovery technology will be used to recovery the file data in the manner of no-copy data recovery. The test results for the sample data sets show that the mechanism can ensure the upper users accessing the file systems transparently, reduce more than half of the data storage costs during protecting process, and greatly enhance the efficiency of service application data.