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USING LOGICAL BLOCK ADDRESSES WITH GENERATION NUMBERS AS DATA FINGERPRINTS FOR NETWORK DEDUPLICATION

  • US 20130332558A1
  • Filed: 08/12/2013
  • Published: 12/12/2013
  • Est. Priority Date: 10/30/2009
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • receiving, at a destination device, a write request identifying a source block address and a generation number, wherein a source device stores data associated with the write request at the source block address, the generation number indicating a number of times that data at the source block address has been modified;

    determining whether the destination device already has a data block that matches the source block address and the generation number; and

    processing, at the destination device, the write request by using the data block that matches the source block address and the generation number, without receiving the data associated with the write request from the source device, when it is determined that the destination device already has the data block that matches the source block address and the generation number.

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