Patents by Inventor Arif A. Merchant

Arif A. Merchant 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).

  • Apparatus for and method of non-linear constraint optimization in storage system configuration
    Publication number: 20020046316
    Abstract: An apparatus for and a method of non-linear constraint optimization in a storage system configuration. In accordance with the primary aspect of the present invention, the objective function for a storage system is determined, the workload units are selected and their standards are determined, and the storage devices are selected and their characteristics are determined. These selections and determinations are then used by a constraint based solver through non-linear constraint integer optimization to generate an assignment plan for the workload units to the storage devices.
    Type: Application
    Filed: November 16, 2001
    Publication date: April 18, 2002
    Inventors: Elizabeth Borowsky, Pat Jacobson, Arif Merchant
  • Apparatus for and method of non-linear constraint optimization in storage system configuration
    Patent number: 6366931
    Abstract: An apparatus for and a method of non-linear constraint optimization in a storage system configuration. In accordance with the primary aspect of the present invention, the objective function for a storage system is determined, the workload units are selected and their standards are determined, and the storage devices are selected and their characteristics are determined. These selections and determinations are then used by a constraint based solver through non-linear constraint integer optimization to generate an assignment plan for the workload units to the storage devices.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: April 2, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Elizabeth Borowsky, Pat Jacobson, Arif Merchant
  • Apparatus for and method of multi-dimensional constraint optimization in storage system configuration
    Patent number: 6321317
    Abstract: An apparatus for and a method of multi-dimensional constraint optimization in a storage system configuration. In accordance with the primary aspect of the present invention, the objective function for a storage system is determined the workload units are selected and their standards are determined, and the storage devices are selected and their characteristics are determined. These selections and determinations are then used by a constraint based solver through constraint integer optimization to generate an assignment plan for the workload units to the storage devices.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: November 20, 2001
    Assignee: Hewlett-Packard Co
    Inventors: Elizabeth Borowsky, Richard Golding, Arif Merchant, Elizabeth Shriver, Mirjana Spasojevic, Tim Sullivan, John Wilkes
  • Methods and apparatus for implementing quality-of-service guarantees in data storage systems
    Patent number: 6119174
    Abstract: The value of a p-quantile of a workload distribution is computed to determine whether a data storage system satisfies a quality-of-service guarantee desired by a client. The quality-of-service guarantee may be a predetermined percentage of a workload being serviced by a device within a predetermined response time. A p-quantile value is set to be equal of the predetermined percentage of the quality-of-service guarantee, and a bound is set to be equal to the predetermined response time. A distribution for the workload arriving at the device during an interval of time equal to the bound is then estimated. It is then determined whether a p-quantile of the workload distribution is less than the bound. In cases where the p-quantile of the workload distribution is computed directly, then the p-quantile of the workload distribution is directly compared to the bound.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: September 12, 2000
    Assignee: Hewlett-Packard Company
    Inventors: Elizabeth L. Borowsky, Richard A. Golding, Arif A. Merchant, Mirjana Spasojevic, John Wilkes