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ACCESSING SNAPSHOTS OF A TIME BASED FILE SYSTEM

  • US 20100274764A1
  • Filed: 04/22/2009
  • Published: 10/28/2010
  • Est. Priority Date: 04/22/2009
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving, by a file system driver stored in a computational device, a request to provide access to a snapshot of a rewritable file system at a selected point in time, wherein a plurality of tokens corresponding to a plurality of data units are stored in the rewritable file system, and wherein an ordering relationship is maintained among the plurality of tokens;

    determining a token corresponding to the selected point in time based on the ordering relationship;

    generating a virtual subdirectory name corresponding to the determined token;

    creating a virtual subdirectory with the generated virtual subdirectory name, wherein the virtual subdirectory is a subdirectory of a root directory; and

    accessing, the snapshot, via the subdirectory.

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