Patents by Inventor Thao B. Bui

Thao B. Bui 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 means for reducing device contention by random accessing and partial track staging of records according to a first DASD format but device mapped according to a second DASD format
    Patent number: 6470421
    Abstract: A staging method and means for both device read and update write operations in which messages and commands between a storage subsystem and a fixed-block formatted RAID array emulating a variable-length record (CKD) formatted device for both read and write operations are evaluated to ascertain whether the record addressing was random and truly in record mode. If they are in that mode, then partial track staging by the RAID array control from the fixed-block formatted HDDs to a subsystem cache or the like would reduce device contention by reading and staging less than full track.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: October 22, 2002
    Assignee: International Business Machines Corporation
    Inventors: Thao B. Bui, James C. Chen, Chan Y. Ng
  • Method and means for reducing device contention by random accessing and partial track staging of records according to a first DASD format but device mapped according to a second DASD format
    Patent number: 6112277
    Abstract: A staging method and means for both device read and update write operations in which messages and commands between a storage subsystem and a fixed-block formatted RAID array emulating a variable-length record (CKD) formatted device for both read and write operations are evaluated to ascertain whether the record addressing was random and truly in record mode. If they are in that mode, then partial track staging by the RAID array control from the fixed-block formatted HDDs to a subsystem cache or the like would reduce device contention by reading and staging less than full track.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: August 29, 2000
    Assignee: International Business Machines Corporation
    Inventors: Thao B. Bui, James C. Chen, Chan Y. Ng