Patents by Inventor Steven Robert PEARSON

Steven Robert PEARSON 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).

  • Physical replication of database subset to improve availability and reduce resource cost in a cloud environment
    Patent number: 8615488
    Abstract: An approach is provided in which a standby component receives a database log record that corresponds to a modification to one of a primary database's corresponding physical storage spaces. The standby component determines whether a modified object associated with the database log record corresponds to a standby database, which includes a replication of a subset of the primary database's corresponding physical storage spaces. When the standby component determines that the modified object corresponds to the standby database, the standby component invokes a physical replay that replicates the modification on the standby database.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: December 24, 2013
    Assignee: International Business Machines Corporation
    Inventors: Prasadarao Akulavenkatavara, Gary Nanhao Jin, Steven Robert Pearson
  • Physical Replication of Database Subset to Improve Availability and Reduce Resource Cost in a Cloud Environment
    Publication number: 20130006932
    Abstract: An approach is provided in which a standby component receives a database log record that corresponds to a modification to one of a primary database's corresponding physical storage spaces. The standby component determines whether a modified object associated with the database log record corresponds to a standby database, which includes a replication of a subset of the primary database's corresponding physical storage spaces. When the standby component determines that the modified object corresponds to the standby database, the standby component invokes a physical replay that replicates the modification on the standby database.
    Type: Application
    Filed: July 1, 2011
    Publication date: January 3, 2013
    Applicant: International Business Machines Corporation
    Inventors: Prasadarao Akulavenkatavara, Gary Nanhao Jin, Steven Robert Pearson
  • REDUCING LIKELIHOOD OF DATA LOSS DURING FAILOVERS IN HIGH-AVAILABILITY SYSTEMS
    Publication number: 20090049329
    Abstract: A method, system, and computer program product for reducing likelihood of data loss during performance of failovers in a high-availability system comprising a primary system and a standby system are provided. The method, system, and computer program product provide for defining a halt duration, periodically determining a halt end time, halting data modifications at the primary system responsive to failure of data replication to the standby system, resuming data modifications at the primary system responsive to a last determined halt end time being reached or data replication to the standby system resuming, and responsive to the primary system failing prior to a previously determined halt end time, determining that a failover to the standby system will not result in data loss on the standby system with respect to the primary system.
    Type: Application
    Filed: August 16, 2007
    Publication date: February 19, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jon Arthur LIND, Dale Murray MCINNIS, Steven Robert PEARSON, Steve RASPUDIC, Vincent KULANDAISAMY, Yuke ZHUGE