Patents by Inventor Takaaki IMAEDA

Takaaki IMAEDA 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).

  • Tiered storage system, storage controller, and method for deduplication and storage tiering
    Patent number: 10037161
    Abstract: According to one embodiment, a deduplication controller in a tiered storage system excludes data duplication physical chunk by physical chunk. Based on the input/output statistics of logical chunks, a tiering controller in the system acquires the input/output statistics of physical chunks, each of which is allocated to one or more of the logical chunks. Based on the input/output statistics of the physical chunks, the tiering controller further executes at least an operation of relocating the data of a physical chunk in a first storage device to a physical chunk in a second storage device that is lower in access speed, or an operation of relocating the data of a physical chunk in the second storage device to a physical chunk in the first storage device.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: July 31, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA SOLUTIONS CORPORATION
    Inventor: Takaaki Imaeda
  • TIERED STORAGE SYSTEM, STORAGE CONTROLLER, AND METHOD FOR DEDUPLICATION AND STORAGE TIERING
    Publication number: 20170115922
    Abstract: According to one embodiment, a deduplication controller in a tiered storage system excludes data duplication physical chunk by physical chunk. Based on the input/output statistics of logical chunks, a tiering controller in the system acquires the input/output statistics of physical chunks, each of which is allocated to one or more of the logical chunks. Based on the input/output statistics of the physical chunks, the tiering controller further executes at least an operation of relocating the data of a physical chunk in a first storage device to a physical chunk in a second storage device that is lower in access speed, or an operation of relocating the data of a physical chunk in the second storage device to a physical chunk in the first storage device.
    Type: Application
    Filed: February 17, 2016
    Publication date: April 27, 2017
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Solutions Corporation
    Inventor: Takaaki IMAEDA