Patents by Inventor Yee-ching Chao
Yee-ching Chao 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: 11893109Abstract: A method, a system, and a computer program product for protection and recovery of backup storage systems from ransomware attacks. A request to modify data stored in a storage system is received. The storage system includes at least one component configured to store the deduplicated data. An acknowledgement of the received request is generated. The acknowledgement indicates that the data stored in the at least one component and identified in the received request was modified. Modification of the data stored in the at least one component and identified in the received request for a predetermined period of time is prevented.Type: GrantFiled: January 15, 2021Date of Patent: February 6, 2024Assignee: Exagrid Systems, Inc.Inventors: Alex Pientka, Michael Carleton, Adrian T. VanderSpek, Stephen Smith, Luke Makosky, Peter Watkins, Nathaniel W. Turner, Sandra C. Scott, Yee-Ching Chao, Thomas J. Gillispie, William Andrews, David G. Therrien, Jamey C. Poirier, Mark B. Hecker, Andrew H. French
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Publication number: 20210224379Abstract: A method, a system, and a computer program product for protection and recovery of backup storage systems from ransomware attacks. A request to modify data stored in a storage system is received. The storage system includes at least one component configured to store the deduplicated data. An acknowledgement of the received request is generated. The acknowledgement indicates that the data stored in the at least one component and identified in the received request was modified. Modification of the data stored in the at least one component and identified in the received request for a predetermined period of time is prevented.Type: ApplicationFiled: January 15, 2021Publication date: July 22, 2021Inventors: Alex Pientka, Michael Carleton, Adrian T. VanderSpek, Stephen Smith, Luke Makosky, Peter Watkins, Nathaniel W. Turner, Sandra C. Scott, Yee-ching Chao, Thomas J. Gillispie, William Andrews, David G. Therrien, Jamey C. Poirier, Mark B. Hecker, Andrew H. French
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Patent number: 10452617Abstract: A method, a system, and a computer-implemented method for performing multi-level deduplication of data are disclosed. A zone stamp is generated for each zone in a plurality of zones contained in at least one data stream. The zone stamp is compared to another zone stamp. The zone stamp and another zone stamp represent zones in the plurality of zones. The comparison is performed for zones at corresponding zone levels based on a determination that a zone stamp of a zone of a preceding zone level is not similar to another zone stamp of another preceding zone level. The zone at the preceding zone level includes at least one zone of a next zone level having a size smaller than or equal to a size of the zone of the preceding zone level. The zone and another zone are deduplicated based on a determination that the zone stamp is similar to another zone stamp.Type: GrantFiled: June 12, 2017Date of Patent: October 22, 2019Assignee: Exagrid Systems, Inc.Inventors: David G. Therrien, Yee-ching Chao, Thomas G. Hansen, Daniel P. Martinelli, Lucas H. Makosky, Mark B. Hecker, Stephen A. Smith, Adrian VanderSpek
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Patent number: 10073855Abstract: A system, a method, and a computer program product for or managing grid server system resource(s) are disclosed. A processor of a grid server in a plurality of grid servers determines an ingestion rate of data received by the grid server for a backup. The ingestion rate corresponds to a speed of transferring of the received data into a memory of the grid server. The processor determines a deduplication and replication rate of the received data. Deduplication represents a deduplication of the received data by the grid server. Replication represents replication of the deduplicated received data to another server in the plurality of servers. The processor adjusts the deduplication and replication rate based on the ingestion rate.Type: GrantFiled: May 21, 2015Date of Patent: September 11, 2018Assignee: Exagrid Systems, Inc.Inventors: Yee-ching Chao, Peter Watkins, Thomas G. Hansen, Stephen A. Smith, Luis Arruda, Adrian T. VanderSpek
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Publication number: 20170277711Abstract: A method, a system, and a computer-implemented method for performing multi-level deduplication of data are disclosed. A zone stamp is generated for each zone in a plurality of zones contained in at least one data stream. The zone stamp is compared to another zone stamp. The zone stamp and another zone stamp represent zones in the plurality of zones. The comparison is performed for zones at corresponding zone levels based on a determination that a zone stamp of a zone of a preceding zone level is not similar to another zone stamp of another preceding zone level. The zone at the preceding zone level includes at least one zone of a next zone level having a size smaller than or equal to a size of the zone of the preceding zone level. The zone and another zone are deduplicated based on a determination that the zone stamp is similar to another zone stamp.Type: ApplicationFiled: June 12, 2017Publication date: September 28, 2017Applicant: Exagrid Systems, Inc.Inventors: David G. Therrien, Yee-ching Chao, Thomas G. Hansen, Daniel P. Martinelli, Lucas H. Makosky, Mark B. Hecker, Stephen A. Smith, Adrian VanderSpek
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Patent number: 9703797Abstract: A method, a system, and a computer-implemented method for performing multi-level deduplication of data are disclosed. A zone stamp is generated for each zone in a plurality of zones contained in at least one data stream. The zone stamp is compared to another zone stamp. The zone stamp and another zone stamp represent zones in the plurality of zones. The comparison is performed for zones at corresponding zone levels based on a determination that a zone stamp of a zone of a preceding zone level is not similar to another zone stamp of another preceding zone level. The zone at the preceding zone level includes at least one zone of a next zone level having a size smaller than or equal to a size of the zone of the preceding zone level. The zone and another zone are deduplicated based on a determination that the zone stamp is similar to another zone stamp.Type: GrantFiled: February 18, 2015Date of Patent: July 11, 2017Assignee: Exagrid Systems, Inc.Inventors: David G. Therrien, Yee-ching Chao, Thomas G. Hansen, Daniel P. Martinelli, Lucas H. Makosky, Mark B. Hecker, Stephen A. Smith, Adrian VanderSpek
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Publication number: 20160239511Abstract: A method, a system, and a computer-implemented method for performing multi-level deduplication of data are disclosed. A zone stamp is generated for each zone in a plurality of zones contained in at least one data stream. The zone stamp is compared to another zone stamp. The zone stamp and another zone stamp represent zones in the plurality of zones. The comparison is performed for zones at corresponding zone levels based on a determination that a zone stamp of a zone of a preceding zone level is not similar to another zone stamp of another preceding zone level. The zone at the preceding zone level includes at least one zone of a next zone level having a size smaller than or equal to a size of the zone of the preceding zone level. The zone and another zone are deduplicated based on a determination that the zone stamp is similar to another zone stamp.Type: ApplicationFiled: February 18, 2015Publication date: August 18, 2016Inventors: David G. Therrien, Yee-ching Chao, Thomas G. Hansen, Daniel P. Martinelli, Lucas H. Makosky, Mark B. Hecker, Stephen A. Smith, Adrian VanderSpek
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Patent number: 9223812Abstract: A system, a method, and a computer program product for adaptive scheduled periodic caching are disclosed. A data stream is received. The data stream contains a plurality of versions of data arranged in a plurality of data clusters. Each data cluster includes an anchor version having a plurality of versions of data dependent on the anchor version. A size of each anchor version of each data cluster is determined. A number of versions of data dependent on each anchor version is also determined. For each anchor version, a ratio of the determined number of dependent versions of data to the determined size of each anchor is computed. At least one anchor version for storing in a memory location is selected based on the computed ratio.Type: GrantFiled: November 19, 2013Date of Patent: December 29, 2015Assignee: Exagrid Systems, Inc.Inventors: David G. Therrien, Adrian VanderSpek, Yee-ching Chao, Jamey C. Poirier
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Publication number: 20140143219Abstract: A system, a method, and a computer program product for adaptive scheduled periodic caching are disclosed. A data stream is received. The data stream contains a plurality of versions of data arranged in a plurality of data clusters. Each data cluster includes an anchor version having a plurality of versions of data dependent on the anchor version. A size of each anchor version of each data cluster is determined. A number of versions of data dependent on each anchor version is also determined. For each anchor version, a ratio of the determined number of dependent versions of data to the determined size of each anchor is computed. At least one anchor version for storing in a memory location is selected based on the computed ratio.Type: ApplicationFiled: November 19, 2013Publication date: May 22, 2014Inventors: David G. Therrien, Adrian VanderSpek, Yee-ching Chao, Jamey C. Poirier