Patents by Inventor James Aubrey Williams

James Aubrey Williams 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).

  • Stale block resynchronization in NVM based systems
    Patent number: 10698637
    Abstract: A shared storage architecture persistently stores database files in non-volatile memories (NVMs) of a plurality of computing nodes of a multi-node DBMS. The computing nodes of the multi-node DBMS store data blocks in NVM and each computing node of the DBMS stores copies of each data block stored on the plurality of computing nodes. A computing node that disconnects and subsequently rejoins the DBMS employs an on-demand approach to resilvering stale data blocks that have been updated in other computing nodes in the DBMS while the computing node was offline. A data block may be resilvered on-demand based on an I/O request for a specific data block from a workload running on the reconnected computing node. Stale data blocks on the reconnected computing node are not resilvered unless they are accessed by the workload.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: June 30, 2020
    Assignee: ORACLE INTERNATIONAL CORPORATION
    Inventors: Samarjeet Tomar, Prasad V. Bagal, Saurabh Manchanda, James Aubrey Williams
  • STALE BLOCK RESYNCHRONIZATION IN NVM BASED SYSTEMS
    Publication number: 20200012456
    Abstract: A shared storage architecture persistently stores database files in non-volatile memories (NVMs) of a plurality of computing nodes of a multi-node DBMS. The computing nodes of the multi-node DBMS store data blocks in NVM and each computing node of the DBMS stores copies of each data block stored on the plurality of computing nodes. A computing node that disconnects and subsequently rejoins the DBMS employs an on-demand approach to resilvering stale data blocks that have been updated in other computing nodes in the DBMS while the computing node was offline. A data block may be resilvered on-demand based on an I/O request for a specific data block from a workload running on the reconnected computing node. Stale data blocks on the reconnected computing node are not resilvered unless they are accessed by the workload.
    Type: Application
    Filed: July 3, 2018
    Publication date: January 9, 2020
    Inventors: Samarjeet Tomar, Prasad V. Bagal, Saurabh Manchanda, James Aubrey Williams