Patents by Inventor Brett M. Allison

Brett M. Allison 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).

  • System, method and program for managing storage
    Patent number: 7552276
    Abstract: System, method and program for managing a storage server comprising first and second clusters of storage controllers. The first cluster comprises one or more storage controllers each controlling one or more storage arrays. The first cluster also comprises a first cache memory and a first nonvolatile storage (“NVS”) shared by the one or more storage controllers of the first cluster. The second cluster comprises one or more storage controllers each controlling one or more storage arrays. The second cluster also comprises a second cache memory and a second nonvolatile storage shared by the one or more storage controllers of the second cluster. There is monitoring of an amount of time that data controlled by each of the clusters is held in the cache memory of the cluster before being outpaged to the storage arrays. There is monitoring of an amount of requests to access storage arrays of a cluster that were delayed due to insufficient NVS.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: June 23, 2009
    Assignee: International Business Machines Corporation
    Inventors: Brett M. Allison, Elise Bobitt
  • SYSTEM, METHOD AND PROGRAM FOR MANAGING STORAGE
    Publication number: 20080147972
    Abstract: System, method and program for managing a storage server comprising first and second clusters of storage controllers. The first cluster comprises one or more storage controllers each controlling one or more storage arrays. The first cluster also comprises a first cache memory and a first nonvolatile storage (“NVS”) shared by the one or more storage controllers of the first cluster. The second cluster comprises one or more storage controllers each controlling one or more storage arrays. The second cluster also comprises a second cache memory and a second nonvolatile storage shared by the one or more storage controllers of the second cluster. There is monitoring of an amount of time that data controlled by each of the clusters is held in the cache memory of the cluster before being outpaged to the storage arrays. There is monitoring of an amount of requests to access storage arrays of a cluster that were delayed due to insufficient NVS.
    Type: Application
    Filed: February 27, 2008
    Publication date: June 19, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Brett M. Allison, Elise Bobitt
  • System, method and program for managing storage
    Patent number: 7356643
    Abstract: System, method and program for managing a storage server comprising first and second clusters of storage controllers. The first cluster comprises one or more storage controllers each controlling one or more storage arrays. The first cluster also comprises a first cache memory and a first nonvolatile storage (“NVS”) shared by the one or more storage controllers of the first cluster. The second cluster comprises one or more storage controllers each controlling one or more storage arrays. The second cluster also comprises a second cache memory and a second nonvolatile storage shared by the one or more storage controllers of the second cluster. There is monitoring of an amount of time that data controlled by each of the clusters is held in the cache memory of the cluster before being outpaged to the storage arrays. There is monitoring of an amount of requests to access storage arrays of a cluster that were delayed due to insufficient NVS.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: April 8, 2008
    Assignee: International Business Machines Corporation
    Inventors: Brett M. Allison, Elise Bobitt