Real-time data protection system and method

  • US 6,308,283 B1
  • Filed: 05/08/1998
  • Issued: 10/23/2001
  • Est. Priority Date: 06/09/1995
  • Status: Expired due to Term
First Claim
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1. A data protection system for backing up at least some data files residing on a local computer system, the data protection system comprising:

  • a local computer system containing one or more data files residing in a file system, wherein the one or more data files are accessed by at least one application program having no data protection code, the local computer system including;

    a configuration database indicating which of the one or more data files are to be mirrored; and

    a mirroring driver that;

    intercepts change information initiated by the at least one application program, the change information representing a change to a selected file; and

    compares information identifying the selected file with the configuration database to determine whether the configuration database specifies that the selected data file is to be mirrored; and

    a remote computer system in communication with the local computer system, wherein the remote computer system;

    receives from the local computer system the change information when it has been determined by the mirroring driver that the selected data file associated with the change information is to be mirrored; and

    applies the change information to a backup copy of the selected data file, such that the selected data file is mirrored at the remote computer system.

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