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Synchronizing updates across cluster filesystems

  • US 10,698,866 B2
  • Filed: 12/15/2015
  • Issued: 06/30/2020
  • Est. Priority Date: 11/29/2011
  • Status: Active Grant
First Claim
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1. A method comprising:

  • creating one or more consistency points in a source filesystem, including creating a first consistency point at a first point-in-time and a second consistency point at a second point-in-time, wherein each consistency point represents filesystem data and metadata at a point-in-time to establish a recovery point, and wherein the first consistency point and the second consistency point are any two consistency points;

    detecting a directory change at the source filesystem, including comparing the first consistency point with the second consistency point and identifying at least one difference between the first and second consistency points based on the comparison; and

    communicating the detected directory change to a target filesystem including;

    identifying a file level change associated with a target filesystem directory based on the detected directory change and a mapping between the source and target filesystems;

    andupdating the target filesystem directory based on the file level change.

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