Architectures for Controller Based CDP

  title={Architectures for Controller Based CDP},
  author={Guy Laden and Paula Ta-Shma and Eitan Yaffe and Michael Factor and Shachar Fienblit},
Continuous Data Protection (CDP) is a recent storage technology which enables reverting the state of the storage to previous points in time. We propose four alternative architectures for supporting CDP in a storage controller, and compare them analytically with respect to both write performance and space usage overheads. We describe exactly how factors such as the degree of protection granularity (continuous or at fixed intervals) and the temporal distance distribution of the given workload… CONTINUE READING
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