Patents by Inventor Eric D. Seppanen

Eric D. Seppanen 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).

  • DYNAMIC RECOVERY OF CONTROL INFORMATION IN STORAGE SYSTEMS
    Publication number: 20260016974
    Abstract: Dynamically managing control information in a storage device, including: querying, by an array management module executing on a storage array controller, the storage device for a location of control information for the storage device, the control information describing the state of one or more memory blocks in the storage device; and issuing, by the array management module in dependence upon the location of the control information for the storage device, a request to retrieve the control information for the storage device.
    Type: Application
    Filed: September 16, 2025
    Publication date: January 15, 2026
    Inventor: ERIC D. SEPPANEN
  • Maintaining control information for storage devices
    Patent number: 12430047
    Abstract: Dynamically managing control information in a storage device, including: querying, by an array management module executing on a storage array controller, the storage device for a location of control information for the storage device, the control information describing the state of one or more memory blocks in the storage device; and issuing, by the array management module in dependence upon the location of the control information for the storage device, a request to retrieve the control information for the storage device.
    Type: Grant
    Filed: December 21, 2023
    Date of Patent: September 30, 2025
    Assignee: PURE STORAGE, INC.
    Inventor: Eric D. Seppanen
  • Pattern forming for heterogeneous erase blocks
    Patent number: 12293111
    Abstract: A method of using flash storage devices with different sized erase blocks is provided. The method includes allocating a plurality of erase blocks of heterogeneous erase block sizes to a RAID stripe, to form a tile pattern having the heterogeneous erase block sizes in the RAID stripe. The method includes writing the RAID stripe across the flash storage devices in accordance with the allocating, and stopping the writing the RAID stripe, responsive to contents of the RAID stripe reaching a threshold.
    Type: Grant
    Filed: July 13, 2023
    Date of Patent: May 6, 2025
    Assignee: PURE STORAGE, INC.
    Inventors: Eric D. Seppanen, Andrew R. Bernat, Timothy W. Brennan, Mark L McAuliffe, Neil Buda Vachharajani
  • Storage Device Management By An External Storage System Controller
    Publication number: 20250130722
    Abstract: Offloading device management responsibilities from a storage device in an array of storage devices, including: retrieving, from the storage device, control information describing the state of one or more memory blocks in the storage device; and performing, in dependence upon the control information, a storage device management operation.
    Type: Application
    Filed: December 23, 2024
    Publication date: April 24, 2025
    Inventor: ERIC D. SEPPANEN
  • Supporting a stateless controller in a storage system
    Patent number: 12175091
    Abstract: Supporting a stateless controller in a storage system, including: sending, from a storage system controller to a storage device, a request for one or more locations of control information for the storage device, the storage system controller being external to the storage device; receiving, from the storage device, the one or more locations of one or more memory blocks that include the control information; and retrieving, from the storage device, the control information from the one or more memory blocks.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: December 24, 2024
    Assignee: PURE STORAGE, INC.
    Inventor: Eric D. Seppanen
  • Optimizing storage system performance using data characteristics
    Patent number: 12141118
    Abstract: Characteristics associated with a device are received from the device. Firmware for the device is generated based on the received characteristics.
    Type: Grant
    Filed: June 1, 2023
    Date of Patent: November 12, 2024
    Assignee: PURE STORAGE, INC.
    Inventors: Gordon James Coleman, Peter E. Kirkpatrick, Eric D. Seppanen
  • Maintaining Control Information for Storage Devices
    Publication number: 20240231651
    Abstract: Dynamically managing control information in a storage device, including: querying, by an array management module executing on a storage array controller, the storage device for a location of control information for the storage device, the control information describing the state of one or more memory blocks in the storage device; and issuing, by the array management module in dependence upon the location of the control information for the storage device, a request to retrieve the control information for the storage device.
    Type: Application
    Filed: December 21, 2023
    Publication date: July 11, 2024
    Inventor: ERIC D. SEPPANEN
  • Pattern Forming For Heterogeneous Erase Blocks
    Publication number: 20240231691
    Abstract: A method of using flash storage devices with different sized erase blocks is provided. The method includes allocating a plurality of erase blocks of heterogeneous erase block sizes to a RAID stripe, to form a tile pattern having the heterogeneous erase block sizes in the RAID stripe. The method includes writing the RAID stripe across the flash storage devices in accordance with the allocating, and stopping the writing the RAID stripe, responsive to contents of the RAID stripe reaching a threshold.
    Type: Application
    Filed: July 13, 2023
    Publication date: July 11, 2024
    Inventors: ERIC D. SEPPANEN, ANDREW R. BERNAT, TIMOTHY W. BRENNAN, MARK L. McAULIFFE, NEIL BUDA VACHHARAJANI
  • Deallocated block determination
    Patent number: 11995318
    Abstract: A first data block on a storage device including a data structure of deallocated data blocks on the storage device and a corresponding program erase count value for each of the deallocated data blocks is identified. A determination as to whether a second data block from the data structure of deallocated data blocks remains deallocated after being added to the data structure of deallocated data blocks based on the program erase count value is made. The data is stored at the second data block upon determining that the second data block remains deallocated after being added to the data structure of deallocated data blocks.
    Type: Grant
    Filed: April 6, 2023
    Date of Patent: May 28, 2024
    Assignee: PURE STORAGE, INC.
    Inventors: Eric D. Seppanen, Neil Buda Vachharajani, Nidhi Pankaj Doshi
  • Pattern Forming For Heterogeneous Erase Blocks
    Publication number: 20240134569
    Abstract: A method of using flash storage devices with different sized erase blocks is provided. The method includes allocating a plurality of erase blocks of heterogeneous erase block sizes to a RAID stripe, to form a tile pattern having the heterogeneous erase block sizes in the RAID stripe. The method includes writing the RAID stripe across the flash storage devices in accordance with the allocating, and stopping the writing the RAID stripe, responsive to contents of the RAID stripe reaching a threshold.
    Type: Application
    Filed: July 12, 2023
    Publication date: April 25, 2024
    Inventors: ERIC D. SEPPANEN, ANDREW R. BERNAT, TIMOTHY W. BRENNAN, MARK L. McAULIFFE, NEIL BUDA VACHHARAJANI
  • Alert tracking in storage
    Patent number: 11868625
    Abstract: Dynamically managing control information in a storage device, including: querying, by an array management module executing on a storage array controller, the storage device for a location of control information for the storage device, the control information describing the state of one or more memory blocks in the storage device; and issuing, by the array management module in dependence upon the location of the control information for the storage device, a request to retrieve the control information for the storage device.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: January 9, 2024
    Assignee: PURE STORAGE, INC.
    Inventor: Eric D. Seppanen
  • Optimizing Storage System Performance Using Data Characteristics
    Publication number: 20230306010
    Abstract: Characteristics associated with a device are received from the device. Firmware for the device is generated based on the received characteristics.
    Type: Application
    Filed: June 1, 2023
    Publication date: September 28, 2023
    Inventors: Gordon James Coleman, Peter E. Kirkpatrick, Eric D. Seppanen
  • Deallocated Block Determination
    Publication number: 20230244382
    Abstract: A first data block on a storage device including a data structure of deallocated data blocks on the storage device and a corresponding program erase count value for each of the deallocated data blocks is identified. A determination as to whether a second data block from the data structure of deallocated data blocks remains deallocated after being added to the data structure of deallocated data blocks based on the program erase count value is made. The data is stored at the second data block upon determining that the second data block remains deallocated after being added to the data structure of deallocated data blocks.
    Type: Application
    Filed: April 6, 2023
    Publication date: August 3, 2023
    Inventors: ERIC D. SEPPANEN, NEIL BUDA VACHHARAJANI, NIDHI PANKAJ DOSHI
  • Heterogeneous erase blocks
    Patent number: 11704066
    Abstract: A method of using flash storage devices with different sized erase blocks is provided. The method includes allocating a plurality of erase blocks of heterogeneous erase block sizes to a RAID stripe, to form a tile pattern having the heterogeneous erase block sizes in the RAID stripe. The method includes writing the RAID stripe across the flash storage devices in accordance with the allocating, and stopping the writing the RAID stripe, responsive to contents of the RAID stripe reaching a threshold.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: July 18, 2023
    Assignee: PURE STORAGE, INC.
    Inventors: Eric D. Seppanen, Andrew R. Bernat, Timothy W. Brennan, Mark L. McAuliffe, Neil Buda Vachharajani
  • Intelligent block deallocation verification
    Patent number: 11640244
    Abstract: A first data block on a storage device including a data structure of deallocated data blocks on the storage device and a corresponding program erase count value for each of the deallocated data blocks is identified. A determination as to whether a second data block from the data structure of deallocated data blocks remains deallocated after being added to the data structure of deallocated data blocks based on the program erase count value is made. The data is stored at the second data block upon determining that the second data block remains deallocated after being added to the data structure of deallocated data blocks.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: May 2, 2023
    Assignee: Pure Storage, Inc.
    Inventors: Eric D. Seppanen, Neil Buda Vachharajani, Nidhi Pankaj Doshi
  • Supporting A Stateless Controller In A Storage System
    Publication number: 20220317894
    Abstract: Supporting a stateless controller in a storage system, including: sending, from a storage system controller to a storage device, a request for one or more locations of control information for the storage device, the storage system controller being external to the storage device; receiving, from the storage device, the one or more locations of one or more memory blocks that include the control information; and retrieving, from the storage device, the control information from the one or more memory blocks.
    Type: Application
    Filed: June 21, 2022
    Publication date: October 6, 2022
    Inventor: ERIC D. SEPPANEN
  • Offloading device management responsibilities of a storage device to a storage controller
    Patent number: 11385801
    Abstract: Offloading device management responsibilities from a storage device in an array of storage devices, including: retrieving, from the storage device, control information describing the state of one or more memory blocks in the storage device; and performing, in dependence upon the control information, a storage device management operation.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: July 12, 2022
    Assignee: PURE STORAGE, INC.
    Inventor: Eric D. Seppanen
  • Alert Tracking In Storage
    Publication number: 20220019359
    Abstract: Dynamically managing control information in a storage device, including: querying, by an array management module executing on a storage array controller, the storage device for a location of control information for the storage device, the control information describing the state of one or more memory blocks in the storage device; and issuing, by the array management module in dependence upon the location of the control information for the storage device, a request to retrieve the control information for the storage device.
    Type: Application
    Filed: September 29, 2021
    Publication date: January 20, 2022
    Inventor: ERIC D. SEPPANEN
  • INTELLIGENT BLOCK DEALLOCATION VERIFICATION
    Publication number: 20210373762
    Abstract: A first data block on a storage device including a data structure of deallocated data blocks on the storage device and a corresponding program erase count value for each of the deallocated data blocks is identified. A determination as to whether a second data block from the data structure of deallocated data blocks remains deallocated after being added to the data structure of deallocated data blocks based on the program erase count value is made. The data is stored at the second data block upon determining that the second data block remains deallocated after being added to the data structure of deallocated data blocks.
    Type: Application
    Filed: August 13, 2021
    Publication date: December 2, 2021
    Inventors: Eric D. Seppanen, Neil Buda Vachharajani, Nidhi Pankaj Doshi
  • Heterogeneous Erase Blocks
    Publication number: 20210311667
    Abstract: A method of using flash storage devices with different sized erase blocks is provided. The method includes allocating a plurality of erase blocks of heterogeneous erase block sizes to a RAID stripe, to form a tile pattern having the heterogeneous erase block sizes in the RAID stripe. The method includes writing the RAID stripe across the flash storage devices in accordance with the allocating, and stopping the writing the RAID stripe, responsive to contents of the RAID stripe reaching a threshold.
    Type: Application
    Filed: June 15, 2021
    Publication date: October 7, 2021
    Inventors: Eric D. Seppanen, Andrew R. Bernat, Timothy W. Brennan, Mark L. McAuliffe, Neil Buda Vachharajani