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Transparent file restore

  • US 7,509,357 B2
  • Filed: 07/26/2005
  • Issued: 03/24/2009
  • Est. Priority Date: 03/14/2002
  • Status: Expired due to Term
First Claim
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1. A method for automatically handling an error when retrieving a file for an application, comprising:

  • under control of a file restore filter that is an extension to an operating system;

    detecting the error when the application attempts to retrieve the file from a storage device by intercepting an error message;

    checking a user defined policy to determine whether a backup copy should be restored, wherein the user defined policy indicates when the backup copy should be used in one of multiple circumstances based on whether the error is caused by a damaged file or by a missing file and based on whether modifications were made to the file since the backup copy was made; and

    restoring the file from the backup copy if the user defined policy indicates that the backup copy should be used, wherein the application proceeds with the file restored from the backup copy without failing due to the error.

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