Patents by Inventor Howard Hao

Howard Hao 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).

  • Incremental virtual machine backup supporting migration
    Patent number: 8832029
    Abstract: A record of changes to virtual machine data of a virtual machine and a record of changes to snapshots of the virtual machine that have been received since the virtual machine was last backed up are maintained. In response to it being time to perform an incremental backup of the virtual machine, a portion of the virtual machine data is backed up based on the record of changes to the virtual machine data, and a portion of the snapshots is backed up based on the record of changes to the snapshots. In response to it being time to migrate the virtual machine to a second host device, the virtual machine data, the record of changes to the virtual machine data, the record of changes to the snapshots, and one or more of the snapshots are migrated to the second host device.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: September 9, 2014
    Assignee: Microsoft Corporation
    Inventors: Angshuman Bezbaruah, Christopher L. Eck, Soumya Kanti Das Bhaumik, Hasan Serdar Sutay, Howard Hao
  • VERIFYING A DATA RECOVERY COMPONENT USING A MANAGED INTERFACE
    Publication number: 20130054533
    Abstract: The subject disclosure is directed towards verifying a data recovery component of a volume snapshot service using a managed interface. The managed interface enables interoperability between the data recovery component and one or more complementary data recovery components by converting compatible instructions for the data recovery component and a complementary data recovery component into native data recovery operations for the volume snapshot service and vice versa. Via the managed interface, the complementary data recovery component emulates the native data recovery operations. Using status information associated with such an emulation, the data recovery component is verifiable.
    Type: Application
    Filed: August 24, 2011
    Publication date: February 28, 2013
    Applicant: MICROSOFT CORPORATION
    Inventors: Howard Hao, James Robert Benton, Thothathri Vanamamalai
  • INCREMENTAL VIRTUAL MACHINE BACKUP SUPPORTING MIGRATION
    Publication number: 20120209812
    Abstract: A record of changes to virtual machine data of a virtual machine and a record of changes to snapshots of the virtual machine that have been received since the virtual machine was last backed up are maintained. In response to it being time to perform an incremental backup of the virtual machine, a portion of the virtual machine data is backed up based on the record of changes to the virtual machine data, and a portion of the snapshots is backed up based on the record of changes to the snapshots. In response to it being time to migrate the virtual machine to a second host device, the virtual machine data, the record of changes to the virtual machine data, the record of changes to the snapshots, and one or more of the snapshots are migrated to the second host device.
    Type: Application
    Filed: February 16, 2011
    Publication date: August 16, 2012
    Applicant: MICROSOFT CORPORATION
    Inventors: Angshuman Bezbaruah, Christopher L. Eck, Soumya Kanti Das Bhaumik, Hasan Serdar Sutay, Howard Hao