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SYSTEMS AND METHODS FOR PERFORMING DATA REPLICATION

  • US 20110295804A1
  • Filed: 05/27/2011
  • Published: 12/01/2011
  • Est. Priority Date: 05/28/2010
  • Status: Active Grant
First Claim
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1. A method for performing data replication, the method comprising:

  • monitoring a plurality of journal entries associated with writing data to a source storage device;

    identifying a first journal entry of the plurality of journal entries, the first journal entry comprising a first data write operation, a first file identifier descriptor (FID) of a file to be modified by the first data write operation on the source storage device, and a first location of a first portion of the file to be modified;

    identifying a second journal entry of the plurality of journal entries, the second journal entry comprising a second data write operation, a second FID of a file to be modified by the second data write operation on the source storage device, and a second location of a second portion of the file to be modified;

    determining that the first and second data write operations can be combined into a single write operation;

    constructing an absolute file name based on at least one of said first and second FIDs, wherein neither the first nor second journal entries comprises the absolute file name; and

    transmitting the single write operation and the absolute file name to a destination storage device to replay on the destination storage device the data modifications associated with the first and second write operations.

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