Patents by Inventor Art Longden

Art Longden 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).

  • Efficient cloning of logical storage devices
    Patent number: 11237916
    Abstract: A no-copy clone of a logical storage unit is created. A define process is initiated for defining a target logical storage unit as the clone before activation of the target logical storage unit. By initiating the define process before activating the logical storage unit, there is a greater likelihood that, when a write operation is received for a data portion on the source logical storage unit or target logical storage unit after activation of the target LSU, the data portion will already be defined and not need to be defined when performing the write operation. When a write operation is received at the source logical storage unit, if the target logical storage unit is not active yet, the data of the write operation may be written to an allocated physical location for the data portion shared between the source and target logical storage units without updating any clone metadata.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: February 1, 2022
    Assignee: EMC IP Holding Company LLC
    Inventors: Sandeep Chandrashekhara, Michael Ferrari, Jeffrey Wilson, Mark J. Halstead, Art Longden
  • EFFICIENT CLONING OF LOGICAL STORAGE DEVICES
    Publication number: 20210157678
    Abstract: A no-copy clone of a logical storage unit is created. A define process is initiated for defining a target logical storage unit as the clone before activation of the target logical storage unit. By initiating the define process before activating the logical storage unit, there is a greater likelihood that, when a write operation is received for a data portion on the source logical storage unit or target logical storage unit after activation of the target LSU, the data portion will already be defined and not need to be defined when performing the write operation. When a write operation is received at the source logical storage unit, if the target logical storage unit is not active yet, the data of the write operation may be written to an allocated physical location for the data portion shared between the source and target logical storage units without updating any clone metadata.
    Type: Application
    Filed: November 22, 2019
    Publication date: May 27, 2021
    Applicant: EMC IP Holding Company LLC
    Inventors: Sandeep Chandrashekhara, Michael Ferrari, Jeffrey Wilson, Mark J. Halstead, Art Longden