Patents by Inventor James Gregory Ranweiler

James Gregory Ranweiler 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).

  • Cluster resource action in clustered computer system incorporation prepare operation
    Patent number: 6889253
    Abstract: An apparatus, clustered computer system, program product and method utilize a unique prepare operation in connection with a resource action to effectively “lock out” missing or inactive cluster entities such as nodes and cluster objects from rejoining a clustered computer system subsequent to the resource action. The prepare operation includes the modification of one or more cluster configuration parameters associated with a plurality of entities in a clustered computer system, such that any such cluster entity that is active during the prepare operation accepts the modifications, while any such cluster entity that is inactive during the prepare operation does not accept the modifications.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: May 3, 2005
    Assignee: International Business Machines Corporation
    Inventors: Kevin Curtis Griffin, Michael James McDermott, James Gregory Ranweiler
  • Cluster resource action in clustered computer system incorporating prepare operation
    Publication number: 20020161869
    Abstract: An apparatus, clustered computer system, program product and method utilize a unique prepare operation in connection with a resource action to effectively “lock out” missing or inactive cluster entities such as nodes and cluster objects from rejoining a clustered computer system subsequent to the resource action. The prepare operation includes the modification of one or more cluster configuration parameters associated with a plurality of entities in a clustered computer system, such that any such cluster entity that is active during the prepare operation accepts the modifications, while any such cluster entity that is inactive during the prepare operation does not accept the modifications.
    Type: Application
    Filed: April 30, 2001
    Publication date: October 31, 2002
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kevin Curtis Griffin, Michael James McDermott, James Gregory Ranweiler
  • Method and system for selectable consistency level maintenance in a resilent database system
    Patent number: 5796999
    Abstract: In a resilient database system which includes a journaled database which is implemented at one or more locations within a distributed data processing system, multiple diverse consistency levels are specified which each detail a level of consistency to be maintained between a primary database and a replica database. A user is then permitted to select a particular level of consistency for each replica database. Thereafter, each update to a record within the primary database is utilized to initiate an update to the corresponding record within each replica database in a manner which is consistent with the selected level of consistency for that replica database.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: August 18, 1998
    Assignee: International Business Machines Corporation
    Inventors: Alain Charles Azagury, Danny Dolev, German Goft, John Michael Marberg, James Gregory Ranweiler, Julian Satran