Patents by Inventor Robbert Van Der Linden

Robbert Van Der Linden 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).

  • Multi-volume audit trails for fault tolerant computers
    Patent number: 6041420
    Abstract: A fault tolerant computer system distributes audit trail files containing audit records, across an arbitrary number of disk volumes. After one audit trail file becomes full, audit records are directed toward a next audit trail file stored on a different disk volume. Storage of newly generated audit rotates through the disk volumes in round-robin fashion. Full audit trail files are eventually archived and their space becomes available again for renaming and storage of newly generated audit records. The number of audit records available for on-line recovery after a failure is not limited to the storage capacity of any single disk volume. Furthermore, there is no contention for disk access between archiving of full audit trail files and storage of newly generated audit records.
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: March 21, 2000
    Assignee: Tandem Computers Incorporated
    Inventors: Michael J. Skarpelos, Robbert van der Linden, William J. Carley, James M. Lyon, Matthew C. McCline
  • Multi-volume audit trails for fault tolerant computers
    Patent number: 5590274
    Abstract: A fault tolerant computer system distributes audit trail files containing audit records, across an arbitrary number of disk volumes. After one audit trail file becomes full, audit records are directed toward a next audit trail file stored on a different disk volume. Storage of newly generated audit rotates through the disk volumes in round-robin fashion. Full audit trail files are eventually archived and their space becomes available again for renaming and storage of newly generated audit records. The number of audit records available for on-line recovery after a failure is not limited to the storage capacity of any single disk volume. Furthermore, there is no contention for disk access between archiving of full audit trail files and storage of newly generated audit records.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: December 31, 1996
    Assignee: Tandem Computers Incorporated
    Inventors: Michael J. Skarpelos, Robbert van der Linden, William J. Carley, James M. Lyon, Matthew C. McCline