Patents by Inventor Gairy Grannum

Gairy Grannum has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Producing a mirrored copy using incremental-divergence
    Patent number: 6728898
    Abstract: Producing a mirror copy using incremental-divergence is performed in a computer system in which write requests are each associated with a reference label. A mirror set may be restored to a state in which the data storage devices contain identical data by copying from the data storage device having “good” data only portions of data which have not been stored on the data storage device having divergent data. Incremental-divergence copying may be accomplished by keeping track of the changes made after a point in which the data storage devices are known to contain identical data.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: April 27, 2004
    Assignee: Marathon Technologies Corporation
    Inventors: Glenn A. Tremblay, Paul A. Leveille, Charles H. Kaman, Gairy Grannum
  • Producing a mirrored copy using incremental-divergence
    Publication number: 20030172316
    Abstract: Producing a mirror copy using incremental-divergence is performed in a computer system in which write requests are each associated with a reference label. A mirror set may be restored to a state in which the data storage devices contain identical data by copying from the data storage device having “good” data only portions of data which have not been stored on the data storage device having divergent data. Incremental-divergence copying may be accomplished by keeping track of the changes made after a point in which the data storage devices are known to contain identical data.
    Type: Application
    Filed: March 6, 2002
    Publication date: September 11, 2003
    Inventors: Glenn A. Tremblay, Paul A. Leveille, Charles H. Kaman, Gairy Grannum