Patents by Inventor Frederik De Schrijver
Frederik De Schrijver 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: 20230103497Abstract: A method for utilizing an object storage system (470) for storing and retrieving a volume of data, the volume of data including a plurality of data objects, the method includes the steps of accumulating the volume of data to an ingest area (474) provided within a non-taped-based storage medium; copying a first subset of the plurality of data objects to a first tape medium (472A); and copying a second subset of the plurality of data objects to a second tape medium (472B) that is independent of the first tape medium (472A).Type: ApplicationFiled: October 5, 2022Publication date: April 6, 2023Inventors: Thomas Demoor, Stijn Blyweert, Frederik De Schrijver, Don Doerner, Mary Hayes, Turguy Goker
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Patent number: 11567899Abstract: Example distributed storage systems, delete managers, and methods provide for managing dependent delete operations among data stores. Dependent data operation entries and corresponding dependency sets may be identified in an operations log. Dependent data operations may be identified in each shard and data operation entries. A delete process for the data objects in the dependency set may be delayed until the delete process for the dependent data object completes.Type: GrantFiled: December 3, 2019Date of Patent: January 31, 2023Assignee: Western Digital Technologies, Inc.Inventors: Frederik De Schrijver, Thomas Demoor, Carl D'Halluin
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Patent number: 11157186Abstract: Systems and methods for distributed storage systems using dynamic spreading policies are described. Distributed storage elements may be accessed using various storage paths through hierarchically organized storage system components to store data blocks corresponding to data elements. A higher priority hierarchical spreading policy is selected for determining the storage elements to receive the data blocks. If the first hierarchical spreading policy is determined not to have been met, a lower priority hierarchical spreading policy is selected and the data blocks are stored according to the lower priority hierarchical spreading policy. Data block stored at the lower priority hierarchical spreading policy may automatically be migrated to the higher priority hierarchical spreading policy.Type: GrantFiled: March 24, 2020Date of Patent: October 26, 2021Assignee: Western Digital Technologies, Inc.Inventors: Sam De Roeck, Arne De Coninck, Stijn Devriendt, Lien Boelaert, Annelies Cuvelier, Frederik De Schrijver
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Publication number: 20210165760Abstract: Example distributed storage systems, delete managers, and methods provide for managing dependent delete operations among data stores. Dependent data operation entries and corresponding dependency sets may be identified in an operations log. Dependent data operations may be identified in each shard and data operation entries. A delete process for the data objects in the dependency set may be delayed until the delete process for the dependent data object completes.Type: ApplicationFiled: December 3, 2019Publication date: June 3, 2021Inventors: Frederik De Schrijver, Thomas Demoor, Carl D'Halluin
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Publication number: 20200401309Abstract: Systems and methods for distributed storage systems using dynamic spreading policies are described. Distributed storage elements may be accessed using various storage paths through hierarchically organized storage system components to store data blocks corresponding to data elements. A higher priority hierarchical spreading policy is selected for determining the storage elements to receive the data blocks. If the first hierarchical spreading policy is determined not to have been met, a lower priority hierarchical spreading policy is selected and the data blocks are stored according to the lower priority hierarchical spreading policy. Data block stored at the lower priority hierarchical spreading policy may automatically be migrated to the higher priority hierarchical spreading policy.Type: ApplicationFiled: March 24, 2020Publication date: December 24, 2020Inventors: Sam De Roeck, Arne De Coninck, Stijn Devriendt, Lien Boelaert, Annelies Cuvelier, Frederik De Schrijver
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Patent number: 10725884Abstract: A method and computer device for storage and retrieval of a data object on a storage medium. The method includes steps of disassembling the data object into a predetermined number of redundant sub blocks, storing the redundant sub blocks on the storage medium, retrieving at least a predetermined multiple of a minimal spreading requirement of the redundant sub blocks from the storage medium, and assembling the data object from any combination of a particular number of the redundant sub blocks, the particular number corresponding to a predetermined multiple of a minimal spreading requirement. The computer device includes modules for performing the steps.Type: GrantFiled: December 13, 2017Date of Patent: July 28, 2020Assignee: Western Digital Technologies, Inc.Inventors: Frederik De Schrijver, Romain Raymond Agnes Slootmaekers, Bastiaan Stougie, Joost Yervante Damad, Wim De Wispelaere, Wouter Van Eetvelde, Bart De Vylder
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Patent number: 10379953Abstract: A distributed object storage system has a monitoring agent and/or a maintenance agent configured to determine for each of a plurality of repair tasks the actual concurrent failure tolerance of a corresponding repair data object. The actual concurrent failure tolerance corresponds to the number of storage elements that store sub blocks of the repair data object and are allowed to fail concurrently.Type: GrantFiled: March 6, 2017Date of Patent: August 13, 2019Assignee: Western Digital Technologies, Inc.Inventors: Koen De Keyser, Frederik De Schrijver, Bastiaan Stougie
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Publication number: 20190205039Abstract: A distributed object storage system comprises an encoding module configured to calculate for a plurality of predetermined values of the spreading requirement the cumulative size of the sub fragment files when stored on the file system with the predetermined block size; and select as a spreading requirement from said plurality of predetermined values a calculated value that is equal to one of said predetermined values for which the cumulative size is minimal.Type: ApplicationFiled: March 11, 2019Publication date: July 4, 2019Inventors: Stefaan Vervaet, Frederik De Schrijver, Wim De Wispelaere, Wouter Van Eetvelde
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Patent number: 10241872Abstract: There is provided a distributed object storage system that includes several performance optimizations with respect to efficiently storing data objects when coping with a desired concurrent failure tolerance of concurrent failures of storage elements which is greater than two and with respect to optimizing encoding/decoding overhead and the number of input and output operations at the level of the storage elements.Type: GrantFiled: July 30, 2015Date of Patent: March 26, 2019Assignee: Amplidata N.V.Inventors: Frederik De Schrijver, Bastiaan Stougie, Koen De Keyser, Wim De Wispelaere
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Patent number: 10228867Abstract: A distributed object storage system comprises an encoding module configured to calculate for a plurality of predetermined values of the spreading requirement the cumulative size of the sub fragment files when stored on the file system with the predetermined block size; and select as a spreading requirement from said plurality of predetermined values a calculated value that is equal to one of said predetermined values for which the cumulative size is minimal.Type: GrantFiled: October 22, 2013Date of Patent: March 12, 2019Assignee: AMPLIDATA NVInventors: Stefaan Vervaet, Frederik De Schrijver, Wim De Wispelaere, Wouter Van Eetvelde
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Patent number: 10133616Abstract: There is provided a distributed object storage system that includes several performance optimizations with respect to efficiently storing data objects when coping with a desired concurrent failure tolerance of concurrent failures of storage elements which is greater than two and with respect to optimizing encoding/decoding overhead and the number of input and output operations at the level of the storage elements.Type: GrantFiled: May 9, 2017Date of Patent: November 20, 2018Assignee: Western Digital Technologies, Inc.Inventors: Frederik De Schrijver, Bastiaan Stougie, Koen De Keyser
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Patent number: 9965539Abstract: The present disclosure relates to systems and methods for dynamic sharding of a database comprising data identifiable by keys comprised within a global ordered range. When handling a request for data of at least one key: providing the request to a predetermined shard store; the predetermined shard store verifying, by means of its local subrange collection, whether the at least one key is present in a local subrange of a shard stored on the predetermined shard store; and when at least one key is not present in a local subrange of a shard stored on the predetermined shard store, returning a message comprising the local subrange collection of the predetermined shard store.Type: GrantFiled: September 16, 2015Date of Patent: May 8, 2018Assignee: HGST Netherlands B.V.Inventors: Carl Rene D'Halluin, Frederik De Schrijver, Jochen Maes, Romain Raymond Agnes Slootmaekers, Nicolas Maria Sylvain Trangez, Jan Doms
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Publication number: 20180101462Abstract: A method and computer device for storage and retrieval of a data object on a storage medium. The method includes steps of disassembling the data object into a predetermined number of redundant sub blocks, storing the redundant sub blocks on the storage medium, retrieving at least a predetermined multiple of a minimal spreading requirement of the redundant sub blocks from the storage medium, and assembling the data object from any combination of a particular number of the redundant sub blocks, the particular number corresponding to a predetermined multiple of a minimal spreading requirement. The computer device includes modules for performing the steps.Type: ApplicationFiled: December 13, 2017Publication date: April 12, 2018Inventors: Frederik De Schrijver, Romain Raymond Agnes Slootmaekers, Bastiaan Stougie, Joost Yervante Damad, Wim De Wispelaere, Wouter Van Eetvelde, Bart De Vylder
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Patent number: 9846629Abstract: A method and computer device for storage and retrieval of a data object on a storage medium. The method includes steps of disassembling the data object into a predetermined number of redundant sub blocks, storing the redundant sub blocks on the storage medium, retrieving at least a predetermined multiple of a minimal spreading requirement of the redundant sub blocks from the storage medium, and assembling the data object from any combination of a particular number of the redundant sub blocks, the particular number corresponding to a predetermined multiple of a minimal spreading requirement. The computer device includes modules for performing the steps.Type: GrantFiled: July 28, 2015Date of Patent: December 19, 2017Assignee: Amplidata NVInventors: Frederik De Schrijver, Romain Raymond Agnes Slootmaekers, Bastiaan Stougie, Joost Yervante Damad, Wim De Wispelaere, Wouter Van Eetvelde, Bart De Vylder
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Publication number: 20170242739Abstract: There is provided a distributed object storage system that includes several performance optimizations with respect to efficiently storing data objects when coping with a desired concurrent failure tolerance of concurrent failures of storage elements which is greater than two and with respect to optimizing encoding/decoding overhead and the number of input and output operations at the level of the storage elements.Type: ApplicationFiled: May 9, 2017Publication date: August 24, 2017Inventors: Frederik De Schrijver, Bastiaan Stougie, Koen De Keyser
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Publication number: 20170177440Abstract: A distributed object storage system has a monitoring agent and/or a maintenance agent configured to determine for each of a plurality of repair tasks the actual concurrent failure tolerance of a corresponding repair data object. The actual concurrent failure tolerance corresponds to the number of storage elements that store sub blocks of the repair data object and are allowed to fail concurrently.Type: ApplicationFiled: March 6, 2017Publication date: June 22, 2017Inventors: Koen De Keyser, Frederik De Schrijver, Bastiaan Stougie
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Patent number: 9645885Abstract: There is provided a distributed object storage system that includes several performance optimizations with respect to efficiently storing data objects when coping with a desired concurrent failure tolerance of concurrent failures of storage elements which is greater than two and with respect to optimizing encoding/decoding overhead and the number of input and output operations at the level of the storage elements.Type: GrantFiled: May 14, 2015Date of Patent: May 9, 2017Assignee: Amplidata NVInventors: Frederik De Schrijver, Bastiaan Stougie, Koen De Keyser
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Patent number: 9588862Abstract: A distributed object storage system has a monitoring agent and/or a maintenance agent configured to determine for each of a plurality of repair tasks the actual concurrent failure tolerance of a corresponding repair data object. The actual concurrent failure tolerance corresponds to the number of storage elements that store sub blocks of the repair data object and are allowed to fail concurrently.Type: GrantFiled: June 4, 2013Date of Patent: March 7, 2017Assignee: Amplidata NVInventors: Koen De Keyser, Frederik De Schrijver, Bastiaan Stougie
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Publication number: 20170031778Abstract: There is provided a distributed object storage system that includes several performance optimizations with respect to efficiently storing data objects when coping with a desired concurrent failure tolerance of concurrent failures of storage elements which is greater than two and with respect to optimizing encoding/decoding overhead and the number of input and output operations at the level of the storage elements.Type: ApplicationFiled: July 30, 2015Publication date: February 2, 2017Inventors: Frederik De Schrijver, Bastiaan Stougie, Koen De Keyser, Wim De Wispelaere
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Publication number: 20160335158Abstract: There is provided a distributed object storage system that includes several performance optimizations with respect to efficiently storing data objects when coping with a desired concurrent failure tolerance of concurrent failures of storage elements which is greater than two and with respect to optimizing encoding/decoding overhead and the number of input and output operations at the level of the storage elements.Type: ApplicationFiled: May 14, 2015Publication date: November 17, 2016Inventors: Frederik DE SCHRIJVER, Bastiaan STOUGIE, Koen DE KEYSER