Patents by Inventor Thomas G. Hansen
Thomas G. Hansen 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: 11163727Abstract: A system, a method, and a computer program product for performing deduplication of data using a scalable deduplication grid are disclosed. A listing of a plurality of zone stamps is generated, where each zone stamp represents a zone in the plurality of zones in a data stream. The listing contains a logical arrangement of the plurality of zone stamps obtained from each storage location and being accessible by a plurality of servers. A first zone stamp in the listing is compared to a second zone stamp in the listing. The first and second zones are delta-compressed based on a determination that the first zone stamp is substantially similar to the second zone stamp. A server is selected to perform the comparison and delta-compression.Type: GrantFiled: May 14, 2019Date of Patent: November 2, 2021Assignee: Exagrid Systems, Inc.Inventors: Thomas G. Hansen, Daniel P. Martinelli, Lucas H. Makosky, Mark B. Hecker, Stephen A. Smith, Adrian T. VanderSpek, David G. Therrien
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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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Publication number: 20190266131Abstract: A system, a method, and a computer program product for performing deduplication of data using a scalable deduplication grid are disclosed. A listing of a plurality of zone stamps is generated, where each zone stamp represents a zone in the plurality of zones in a data stream. The listing contains a logical arrangement of the plurality of zone stamps obtained from each storage location and being accessible by a plurality of servers. A first zone stamp in the listing is compared to a second zone stamp in the listing. The first and second zones are delta-compressed based on a determination that the first zone stamp is substantially similar to the second zone stamp. A server is selected to perform the comparison and delta-compression.Type: ApplicationFiled: May 14, 2019Publication date: August 29, 2019Inventors: Thomas G. Hansen, Daniel P. Martinelli, Lucas H. Makosky, Mark B. Hecker, Stephen A. Smith, Adrian T. VanderSpek, David G. Therrien
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Patent number: 10387374Abstract: A system, a method, and a computer program product for performing deduplication of data using a scalable deduplication grid are disclosed. A listing of a plurality of zone stamps is generated, where each zone stamp represents a zone in the plurality of zones in a data stream. The listing contains a logical arrangement of the plurality of zone stamps obtained from each storage location and being accessible by a plurality of servers. A first zone stamp in the listing is compared to a second zone stamp in the listing. The first and second zones are delta-compressed based on a determination that the first zone stamp is substantially similar to the second zone stamp. A server is selected to perform the comparison and delta-compression.Type: GrantFiled: February 27, 2015Date of Patent: August 20, 2019Assignee: Exagrid Systems, Inc.Inventors: Thomas G. Hansen, Daniel P. Martinelli, Lucas H. Makosky, Mark B. Hecker, Stephen A. Smith, Adrian T. VanderSpek, David G. Therrien
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Patent number: 10114831Abstract: A system, a method, and a computer program product for delta version clustering and re-anchoring are provided. A first anchor having a plurality of delta-compressed versions of data dependent on the first anchor is generated. The first anchor and the plurality of delta-compressed versions form a cluster. A second anchor is generated. The first anchor is replaced with the second anchor. The replacing includes re-computing at least one delta-compressed version in the plurality of delta-compressed versions to be dependent on the second anchor. The second anchor replaces the first anchor as an anchor of the cluster.Type: GrantFiled: August 7, 2013Date of Patent: October 30, 2018Assignee: Exagrid Systems, Inc.Inventors: Adrian VanderSpek, Jamey C. Poirier, Lucas H. Makosky, Ashok T. Ramu, Mark Bennett Hecker, Thomas G. Hansen, David G. Therrien
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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: 20160342618Abstract: 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: ApplicationFiled: May 21, 2015Publication date: November 24, 2016Inventors: Peter Watkins, Thomas G. Hansen, Stephen A. Smith, Luis Arruda, Adrian T. VanderSpek
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Publication number: 20160253351Abstract: A system, a method, and a computer program product for performing deduplication of data using a scalable deduplication grid are disclosed. A listing of a plurality of zone stamps is generated, where each zone stamp represents a zone in the plurality of zones in a data stream. The listing contains a logical arrangement of the plurality of zone stamps obtained from each storage location and being accessible by a plurality of servers. A first zone stamp in the listing is compared to a second zone stamp in the listing. The first and second zones are delta-compressed based on a determination that the first zone stamp is substantially similar to the second zone stamp. A server is selected to perform the comparison and delta-compression.Type: ApplicationFiled: February 27, 2015Publication date: September 1, 2016Inventors: Thomas G. Hansen, Daniel P. Martinelli, Lucas H. Makosky, Mark B. Hecker, Stephen A. Smith, Adrian T. VanderSpek, David G. Therrien
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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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Publication number: 20140052700Abstract: A system, a method, and a computer program product for delta version clustering and re-anchoring are provided. A first anchor having a plurality of delta-compressed versions of data dependent on the first anchor is generated. The first anchor and the plurality of delta-compressed versions form a cluster. A second anchor is generated. The first anchor is replaced with the second anchor. The replacing includes re-computing at least one delta-compressed version in the plurality of delta-compressed versions to be dependent on the second anchor. The second anchor replaces the first anchor as an anchor of the cluster.Type: ApplicationFiled: August 7, 2013Publication date: February 20, 2014Applicant: Exagrid Systems, Inc.Inventors: Adrian VanderSpek, Jamey C. Poirier, Lucas H. Makosky, Ashok T. Ramu, Mark Bennett Hecker, Thomas G. Hansen, David G. Therrien
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Patent number: 7925623Abstract: Embodiments of this invention provide primary magnetic disk data storage capacity to clients while at the same time making sure that client data is replicated locally and at an offsite location to protect from all forms of data loss.Type: GrantFiled: September 10, 2003Date of Patent: April 12, 2011Assignee: Exagrid Systems, Inc.Inventors: David G. Therrien, James E. Pownell, Herman Robert Kenna, Adrian VanderSpek, Thomas G. Hansen, Ashok T. Ramu, Cory Lee Sawyer
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Patent number: 7593966Abstract: The present invention provides systems and methods for transferring a set of files. Metadata and stub files associated with the set of files are received at a destination fileserver, a location component in the destination fileserver is updated to maintain a list of repository nodes associated with each file in the set of files, and each stub file is replaced with the full content of the file associated with the stub file. The replacing includes receiving a client request for a specified file in the set of files and replacing the stub file associated with the specified file with a full content of the specified file if the full content of the specified file has not yet been transferred. Replacing the stub file associated with a requested file is a higher priority task than replacing a stub file associated with a non-requested file.Type: GrantFiled: September 10, 2003Date of Patent: September 22, 2009Assignee: Exagrid Systems, Inc.Inventors: David G. Therrien, James E. Pownell, Adrian VanderSpek, Herman Robert Kenna, Thomas G. Hansen, Sean R. Gilhooly, Steven H. Evilia
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Publication number: 20040088331Abstract: Embodiments of this invention provide primary magnetic disk data storage capacity to clients while at the same time making sure that client data is replicated locally and at an offsite location to protect from all forms of data loss.Type: ApplicationFiled: September 10, 2003Publication date: May 6, 2004Inventors: David G. Therrien, James E. Pownell, Herman Robert Kenna, Adrian VanderSpek, Thomas G. Hansen, Ashok T. Ramu, Cory Lee Sawyer
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Publication number: 20040088382Abstract: The present invention relates to computer primary data storage systems and methods that provide comprehensive data protection.Type: ApplicationFiled: September 10, 2003Publication date: May 6, 2004Inventors: David G. Therrien, James E. Pownell, Adrian VanderSpek, Herman Robert Kenna, Thomas G. Hansen, Sean R. Gilhooly, Steven H. Evilia
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Publication number: 20020046230Abstract: A system for scheduling thread execution on a limited number of operating system threads inside a kernel device driver and allowing execution of context threads by kernel mode threads includes a kernel device driver that itself includes at least one kernel thread. A data structure stored in a memory element is associated with a context thread to be executed by the system. A flow scheduler stores context thread state in the associated data structure and schedules the execution of one or more context threads.Type: ApplicationFiled: April 29, 1998Publication date: April 18, 2002Inventors: DANIEL J. DIETERICH, JOHN B. CARTER, SCOTT H. DAVIS, STEVEN J. FRANK, THOMAS G. HANSEN, HSIN H. LEE
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Patent number: 6148377Abstract: Distributed shared memory systems and processes that can connect into each node of a computer network to encapsulate the memory management operations of the connected nodes and to provide thereby an abstraction of a shared virtual memory that can span across each node of the network and that optionally spans across each memory device connected to the computer network. Accordingly, each node on the network having the distributed shared memory system of the invention can access the shared memory.Type: GrantFiled: November 22, 1996Date of Patent: November 14, 2000Assignee: Mangosoft CorporationInventors: John B. Carter, Scott H. Davis, William Abraham, Steven J. Frank, Thomas G. Hansen, Robert S. Phillips, Daniel J. Dietterich, David Porter