Patents by Inventor Alistair C. Veitch

Alistair C. Veitch 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).

  • Method of cooperative caching for distributed storage system
    Patent number: 8055845
    Abstract: An embodiment of a method of cooperative caching for a distributed storage system begins with a step of requesting data from storage devices which hold the data. The method continues with a step of receiving any cached blocks and expected response times for providing non-cached blocks from the storage devices. The method concludes with a step of requesting a sufficient number of the non-cached blocks from one or more particular storage devices which provides an expectation of optimal performance.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: November 8, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Craig Soules, Arif Merchant, Alistair C. Veitch, Yasushi Saito, John Wilkes
  • Method of hashing address space to storage servers
    Patent number: 7823156
    Abstract: An embodiment of a method of hashing an address space to a plurality of storage servers begins with a first step of dividing the address space by a number of the storage servers to form data segments. Each data segment comprises a base address. A second step assigns the data segments to the storage servers according to a sequence. The method continues with a third step of measuring a load on each of the storage servers. According to an embodiment, the method concludes with a fourth step of adjusting data shares assigned to the storage servers according to the sequence to approximately balances the loads on the storage servers while maintaining the base address for each data segment on an originally assigned storage server. According to another embodiment, the method periodically performs the third and fourth steps to maintain an approximately balanced load on the storage servers.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: October 26, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Craig Soules, Arif Merchant, Alistair C. Veitch, Yasushi Saito
  • Method and apparatus for assigning raid levels
    Patent number: 6718434
    Abstract: RAID levels are assigned to data prior to loading the data on a disk array or other data storage device. The RAID levels are determined by applying an algorithm (e.g., a rule-based criteria, a utilization model) to data workload specifications and device specifications.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: April 6, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alistair C. Veitch, Eric A. Anderson, Ram Swaminathan, Guillermo Alvarez, Richard Golding, Ted Romer
  • Method and apparatus for assigning raid levels
    Publication number: 20020184442
    Abstract: RAID levels are assigned to data prior to loading the data on a disk array or other data storage device. The RAID levels are determined by applying an algorithm (e.g., a rule-based criteria, a utilization model) to data workload specifications and device specifications.
    Type: Application
    Filed: May 31, 2001
    Publication date: December 5, 2002
    Inventors: Alistair C. Veitch, Eric A. Anderson, Ram Swaminathan, Guillermo Alvarez, Richard Golding, Theodore H. Romer