Patents by Inventor Nidhi Pankaj Doshi
Nidhi Pankaj Doshi 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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Patent number: 11995318Abstract: 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: April 6, 2023Date of Patent: May 28, 2024Assignee: PURE STORAGE, INC.Inventors: Eric D. Seppanen, Neil Buda Vachharajani, Nidhi Pankaj Doshi
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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: 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: 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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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: 11029853Abstract: Apparatus and methods of operating solid-state drives in a storage system are described. A method includes adjusting, by a host controller of a storage system during run-time, storage bandwidth for a storage system process responsive to an input output (I/O) write request to write data to the storage system that includes multiple solid-state storage drives by determining an allocation share for the storage system process requesting to write the data, and responsive to determining an open segment usage by the storage system process is under the allocation share for the storage system process, opening a new segment for the storage system process.Type: GrantFiled: December 17, 2018Date of Patent: June 8, 2021Assignee: Pure Storage, Inc.Inventors: Timothy W. Brennan, Nidhi Pankaj Doshi, Xiaohui Wang
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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: 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
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Publication number: 20190121542Abstract: Apparatus and methods of operating solid-state drives in a storage system are described. A method includes adjusting, by a host controller of a storage system during run-time, storage bandwidth for a storage system process responsive to an input output (I/O) write request to write data to the storage system that includes multiple solid-state storage drives by determining an allocation share for the storage system process requesting to write the data, and responsive to determining an open segment usage by the storage system process is under the allocation share for the storage system process, opening a new segment for the storage system process.Type: ApplicationFiled: December 17, 2018Publication date: April 25, 2019Inventors: Timothy W. Brennan, Nidhi Pankaj Doshi, Xiaohui Wang
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Patent number: 10191662Abstract: Apparatus and methods of operating solid-state drives in a storage system are described. A method includes adjusting, by a host controller of a storage system during run-time, storage bandwidth for a storage system process responsive to an input output (I/O) write request to write data to the storage system that includes multiple solid-state storage drives by determining an allocation share for the storage system process requesting to write the data, and responsive to determining an open segment usage by the storage system process is under the allocation share for the storage system process, opening a new segment for the storage system process.Type: GrantFiled: January 30, 2017Date of Patent: January 29, 2019Assignee: Pure Storage, Inc.Inventors: Timothy W. Brennan, Nidhi Pankaj Doshi, Xiaohui Wang
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Publication number: 20180121088Abstract: 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 28, 2016Publication date: May 3, 2018Inventors: Nidhi Pankaj Doshi, Eric D. Seppanen, Neil Buda Vachharajani
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Publication number: 20180095662Abstract: Apparatus and methods of operating solid-state drives in a storage system are described. A method includes adjusting, by a host controller of a storage system during run-time, storage bandwidth for a storage system process responsive to an input output (I/O) write request to write data to the storage system that includes multiple solid-state storage drives by determining an allocation share for the storage system process requesting to write the data, and responsive to determining an open segment usage by the storage system process is under the allocation share for the storage system process, opening a new segment for the storage system process.Type: ApplicationFiled: January 30, 2017Publication date: April 5, 2018Inventors: Timothy W. Brennan, Nidhi Pankaj Doshi, Xiaohui Wang