A method of improving the performance of continuous data protection system

Daoan Huo; Qiang Cao; Changsheng Xie; Jing Yang

doi:10.1117/12.839403

23 October 2009 A method of improving the performance of continuous data protection system

Daoan Huo, Qiang Cao, Changsheng Xie, Jing Yang

Proceedings Volume 7517, Photonics and Optoelectronics Meetings (POEM) 2009: Optical Storage and New Storage Technologies; 75170U (2009) https://doi.org/10.1117/12.839403
Event: Photonics and Optoelectronics Meetings 2009, 2009, Wuhan, China

Abstract

Data is the core resource of the information system, so that data corruption is one of the key problems which are on top of the radar screen of most information system administrators. Continuous Data Protection (CDP) technologies help them deal with data corruption by providing timely recovery to any point-in-time. But in this CDP process, the CDP system needs record every data changes, and then the extra system I/O operations increase greatly, the performance of information systems will be lower and the system cannot provide the best service. This paper discusses a method based buffer chains that can reduce the extra I/O operations from the disk. We have presented an implementation in the Linux kernel which provides continuous data protection service with higher performance under some buffer chains strategy.

Citation Download Citation

Daoan Huo, Qiang Cao, Changsheng Xie, and Jing Yang "A method of improving the performance of continuous data protection system", Proc. SPIE 7517, Photonics and Optoelectronics Meetings (POEM) 2009: Optical Storage and New Storage Technologies, 75170U (23 October 2009); https://doi.org/10.1117/12.839403

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