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).
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Publication number: 20240134569Abstract: 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: ApplicationFiled: July 12, 2023Publication date: April 25, 2024Inventors: ERIC D. SEPPANEN, ANDREW R. BERNAT, TIMOTHY W. BRENNAN, MARK L. McAULIFFE, NEIL BUDA VACHHARAJANI
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Patent number: 11868625Abstract: 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: GrantFiled: September 29, 2021Date of Patent: January 9, 2024Assignee: PURE STORAGE, INC.Inventor: Eric D. Seppanen
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Publication number: 20230306010Abstract: Characteristics associated with a device are received from the device. Firmware for the device is generated based on the received characteristics.Type: ApplicationFiled: June 1, 2023Publication date: September 28, 2023Inventors: Gordon James Coleman, Peter E. Kirkpatrick, Eric D. Seppanen
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Publication number: 20230244382Abstract: 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: ApplicationFiled: April 6, 2023Publication date: August 3, 2023Inventors: ERIC D. SEPPANEN, NEIL BUDA VACHHARAJANI, NIDHI PANKAJ DOSHI
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Patent number: 11704066Abstract: 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: GrantFiled: June 15, 2021Date of Patent: July 18, 2023Assignee: PURE STORAGE, INC.Inventors: Eric D. Seppanen, Andrew R. Bernat, Timothy W. Brennan, Mark L. McAuliffe, Neil Buda Vachharajani
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Patent number: 11640244Abstract: 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: GrantFiled: August 13, 2021Date of Patent: May 2, 2023Assignee: Pure Storage, Inc.Inventors: Eric D. Seppanen, Neil Buda Vachharajani, Nidhi Pankaj Doshi
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Publication number: 20220317894Abstract: 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: ApplicationFiled: June 21, 2022Publication date: October 6, 2022Inventor: ERIC D. SEPPANEN
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Patent number: 11385801Abstract: 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: GrantFiled: March 29, 2019Date of Patent: July 12, 2022Assignee: PURE STORAGE, INC.Inventor: Eric D. Seppanen
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Publication number: 20220019359Abstract: 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: ApplicationFiled: September 29, 2021Publication date: January 20, 2022Inventor: ERIC D. SEPPANEN
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Publication number: 20210373762Abstract: 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: ApplicationFiled: August 13, 2021Publication date: December 2, 2021Inventors: Eric D. Seppanen, Neil Buda Vachharajani, Nidhi Pankaj Doshi
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Publication number: 20210311667Abstract: 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: ApplicationFiled: June 15, 2021Publication date: October 7, 2021Inventors: Eric D. Seppanen, Andrew R. Bernat, Timothy W. Brennan, Mark L. McAuliffe, Neil Buda Vachharajani
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Patent number: 11137918Abstract: 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: GrantFiled: June 10, 2019Date of Patent: October 5, 2021Assignee: Pure Storage, Inc.Inventor: Eric D. Seppanen
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Patent number: 11119657Abstract: A storage controller coupled to a storage array comprising one or more storage devices receive a request to write data to one of the storage devices. The storage controller determines a first data block on the storage device comprising a list of deallocated data blocks on the storage device, the list comprising a block number of each deallocated data block and an access operation count value at which each deallocated data block was deallocated. The storage controller identifies a second data block from the list of deallocated data blocks on the storage device based on a corresponding access operation count value from the list and writes the data to the second data block.Type: GrantFiled: October 17, 2019Date of Patent: September 14, 2021Assignee: PURE STORAGE, INC.Inventors: Nidhi Pankaj Doshi, Eric D. Seppanen, Neil Buda Vachharajani
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Patent number: 11080254Abstract: Maintaining data associate with a storage device is described. A method may include receiving, by an application executed by a storage array controller of a host server of a solid-state storage array comprising a plurality of solid-state storage devices, an indication of a change in state of a solid-state storage device of the plurality of solid-state storage devices. In response to receiving the indication, the method may also include retrieving a plurality of tables stored at a volatile memory of the solid-state storage device, the plurality of tables comprising information associated with characteristics of a plurality of data blocks of the solid-state storage device. The method may also include identifying one or more rules associated with the plurality of tables and creating, by the storage array controller, a new plurality of tables based on the one or more rules.Type: GrantFiled: January 11, 2018Date of Patent: August 3, 2021Assignee: Pure Storage, Inc.Inventors: Gordon James Coleman, Eric D. Seppanen, Wei Tang
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Patent number: 11074016Abstract: 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: GrantFiled: December 2, 2019Date of Patent: July 27, 2021Assignee: Pure Storage, Inc.Inventors: Eric D. Seppanen, Andrew R. Bernat, Timothy W. Brennan, Mark L. McAuliffe, Neil Buda Vachharajani
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Publication number: 20200394304Abstract: A topology of a solid-state storage device of a storage system is received from a storage controller. A plurality of schedulable units of the solid-state storage device that are configured to perform parallel access operations are identified based on the topology. A determination as to which of the plurality of schedulable units are associated with other access operations that have been scheduled to be performed by the solid-state storage device is made. A write operation is scheduled to be performed by one or more of the plurality of schedulable units that are not associated with the other access operations that have been scheduled to be performed by the solid-state storage device. The write operation is performed to store data at the solid-state storage device based on the scheduling.Type: ApplicationFiled: June 3, 2020Publication date: December 17, 2020Inventors: Gordon James Coleman, Peter E. Kirkpatrick, Eric D. Seppanen
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Publication number: 20200104077Abstract: 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: ApplicationFiled: December 2, 2019Publication date: April 2, 2020Inventors: Eric D. Seppanen, Andrew R. Bernat, Timothy W. Brennan, Mark L. McAuliffe, Neil Buda Vachharajani
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Publication number: 20200050361Abstract: A storage controller coupled to a storage array comprising one or more storage devices receive a request to write data to one of the storage devices. The storage controller determines a first data block on the storage device comprising a list of deallocated data blocks on the storage device, the list comprising a block number of each deallocated data block and an access operation count value at which each deallocated data block was deallocated. The storage controller identifies a second data block from the list of deallocated data blocks on the storage device based on a corresponding access operation count value from the list and writes the data to the second data block.Type: ApplicationFiled: October 17, 2019Publication date: February 13, 2020Inventors: Nidhi Pankaj Doshi, Eric D. Seppanen, Neil Buda Vachharajani
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Patent number: 10496330Abstract: 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: GrantFiled: October 31, 2017Date of Patent: December 3, 2019Assignee: Pure Storage, Inc.Inventors: Andrew R. Bernat, Timothy W. Brennan, Mark L. McAuliffe, Eric D. Seppanen, Neil Buda Vachharajani
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Patent number: 10481798Abstract: A storage controller coupled to a storage array comprising one or more storage devices receive a request to write data to one of the storage devices. The storage controller determines a first data block on the storage device comprising a list of deallocated data blocks on the storage device, the list comprising a block number of each deallocated data block and an access operation count value at which each deallocated data block was deallocated. The storage controller identifies a second data block from the list of deallocated data blocks on the storage device based on a corresponding access operation count value from the list and writes the data to the second data block.Type: GrantFiled: October 28, 2016Date of Patent: November 19, 2019Assignee: Pure Storage, Inc.Inventors: Nidhi Pankaj Doshi, Eric D. Seppanen, Neil Buda Vachharajani