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Storage system snapshots for continuous file protection

  • US 8,046,547 B1
  • Filed: 01/11/2008
  • Issued: 10/25/2011
  • Est. Priority Date: 01/30/2007
  • Status: Active Grant
First Claim
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1. A method for providing continuous data protection, the method comprising:

  • trapping a file system call;

    evaluating if the trapped file system call is associated with a file that has been modified;

    generating a storage snapshot in response to the file having been modified;

    determining if a previous storage snapshot has been rendered redundant by generating the storage snapshot; and

    deleting the previous storage snapshot if the previous storage snapshot has been rendered redundant.

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