Patents by Inventor Wayne A. Todd

Wayne A. Todd 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).

  • Method and system for recovery of meta data in a storage controller
    Publication number: 20020138695
    Abstract: Disclosed is a method, system, and article of manufacture for processing modified meta data for data recovery operations. The meta data provides information on user data maintained in a storage device. The system determines whether meta data tracks maintained in a cache were modified and indicates in a non-volatile memory that the determined meta data tracks were modified. Data recovery operations may be initiated as a result of a system failure, such as a warmstart or coldstart recovery. During such data recovery operations, the system processes the non-volatile memory and the indications of modified meta data tracks therein to rebuild lost meta data tracks in the cache.
    Type: Application
    Filed: May 9, 2002
    Publication date: September 26, 2002
    Inventors: Brent Cameron Beardsley, Michael Thomas Benhase, Douglas A. Martin, Robert Louis Morton, Kenneth Wayne Todd
  • Method, system, and program for managing meta data in a storage system and rebuilding lost meta data in cache
    Patent number: 6438661
    Abstract: Disclosed is a method, system, and article of manufacture for processing modified meta data for data recovery operations. The meta data provides information on user data maintained in a storage device. The system determines whether meta data tracks maintained in a cache were modified and indicates in a non-volatile memory that the determined meta data tracks were modified. Data recovery operations may be initiated as a result of a system failure, such as a warmstart or coldstart recovery. During such data recovery operations, the system processes the non-volatile memory and the indications of modified meta data tracks therein to rebuild lost meta data tracks in the cache.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: August 20, 2002
    Assignee: International Business Machines Corporation
    Inventors: Brent Cameron Beardsley, Michael Thomas Benhase, Douglas A. Martin, Robert Louis Morton, Kenneth Wayne Todd
  • Method, system, and program for performing read operations during a destage operation
    Patent number: 6425050
    Abstract: Disclosed is a method, system, and program for processing data access requests, such as read requests, to a storage location maintained in both a first storage, such as a cache, area and second storage area, such as a disk drive, during a destage operation. A destage operation is granted access to the storage location to destage data from the storage location in the first storage area to the second storage area. During the destage operation, a data access request is granted access to the storage location.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: July 23, 2002
    Assignee: International Business Machines Corporation
    Inventors: Brent Cameron Beardsley, Michael Thomas Benhase, Thomas Charles Jarvis, Robert Louis Morton, Kenneth Wayne Todd
  • Housing structure
    Patent number: 4942706
    Abstract: A building structure including a first unit having a front elevation, a rear elevation, a first side wall, and a second side wall; and a second unit having a front elevation, a rear elevation, a first side wall, and a second side wall; the first and second units being joined together with first side walls of the first and second units sharing a common border and with the front elevations of the first and second units facing opposite directions.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: July 24, 1990
    Inventors: Wayne A. Todd, Hunter D. Ryan, Jr.