Patents by Inventor Laura L. Ramirez

Laura L. Ramirez 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).

  • Dynamically modeling and selecting a checkpoint scheme based upon an application workload
    Patent number: 8627143
    Abstract: Illustrated is a system and method for executing a checkpoint scheme as part of processing a workload using an application. The system and method also includes identifying a checkpoint event that requires an additional checkpoint scheme. The system and method includes retrieving checkpoint data associated with the checkpoint event. It also includes building a checkpoint model based upon the checkpoint data. The system and method further includes identifying the additional checkpoint scheme, based upon the checkpoint model, the additional checkpoint scheme to be executed as part of the processing of the workload using the application.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: January 7, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Parthasarathy Ranganathan, Bruce J. Walker, John L. Byrne, Laura L. Ramirez
  • DYNAMICALLY MODELING AND SELECTING A CHECKPOINT SCHEME BASED UPON AN APPLICATION WORKLOAD
    Publication number: 20120011401
    Abstract: Illustrated is a system and method for executing a checkpoint scheme as part of processing a workload using an application. The system and method also includes identifying a checkpoint event that requires an additional checkpoint scheme. The system and method includes retrieving checkpoint data associated with the checkpoint event. It also includes building a checkpoint model based upon the checkpoint data. The system and method further includes identifying the additional checkpoint scheme, based upon the checkpoint model, the additional checkpoint scheme to be executed as part of the processing of the workload using the application.
    Type: Application
    Filed: July 12, 2010
    Publication date: January 12, 2012
    Inventors: Parthasarathy RANGANATHAN, Bruce J. Walker, John L. Byrne, Laura L. Ramirez
  • Filesystem failover in a single system image environment
    Patent number: 6247139
    Abstract: A method and apparatus for transparent failover of a filesystem within a computer cluster is provided. For failover protection, a filesystem is physically connected to an active server node and a standby server node. A cluster file system provides distributed access to the filesystem throughout the computer cluster. The cluster file system monitors the progress of each operation performed on the failover protected filesystem. If the active server node should fail during an operation, all processes performing operations on the failover protected filesystem are caused to sleep. The filesystem is then relocated to the standby server node. The cluster file system then awakens each sleeping process and retries each pending operation.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: June 12, 2001
    Assignee: Compaq Computer Corp.
    Inventors: Bruce J. Walker, John L. Byrne, William W. Chow, John A. Gertwagen, Laura L. Ramirez, David B. Zafman