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SYNCHRONIZATION OF STORAGE USING COMPARISONS OF FINGERPRINTS OF BLOCKS

  • US 20140317063A1
  • Filed: 04/22/2014
  • Published: 10/23/2014
  • Est. Priority Date: 05/13/2011
  • Status: Active Grant
First Claim
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1. A system for processing data, comprising:

  • a deduplicating system for storing data segments, wherein the deduplicating system stores a copy of data stored in a data storage system by storing a set of segments that is able to reconstruct the data stored in the data storage system;

    an interface for receiving an indication to revert data stored in the data storage system to a state of data at a snapshot time stored in the deduplicating system; and

    a processor configured to determine a subset of the data stored in the data storage system that has changed between the data stored in the data storage system and the state of data at the snapshot time stored in the deduplicating system using a first list of fingerprints associated with the data stored on the data storage system and a second list of fingerprints associated with the state of data at the snapshot time stored in the deduplicating system.

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