Patents by Inventor Kunal Trivedi
Kunal Trivedi 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: 11954002Abstract: Automatic storage system configuration for mediation services that includes: determining that a particular storage system of the storage systems is not configured to request mediation from a mediation target for mediation between storage systems synchronously replicating a dataset; requesting, by the particular storage system from a configuration service, configuration information indicating one or more service handles for a mediation service; and configuring, in dependence upon the one or more service handles received from the configuration service, a mediation handler to communicate with the mediation service responsive to detecting a communication fault with one of the storage systems.Type: GrantFiled: May 29, 2020Date of Patent: April 9, 2024Assignee: PURE STORAGE, INC.Inventors: John Colgrove, Thomas Gill, David Grunwald, Ronald Karr, Aditya Sethuraman, Kunal Trivedi, Eric Tung
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Patent number: 11797403Abstract: Maintaining a synchronous replication relationship between two or more storage systems, including: receiving, by at least one of a plurality of storage systems across which a dataset will be synchronously replicated, timing information for at least one of the plurality of storage systems; and establishing, based on the timing information, a synchronous replication lease describing a period of time during which the synchronous replication relationship is valid, wherein a request to modify the dataset may only be acknowledged after a copy of the dataset has been modified on each of the storage systems.Type: GrantFiled: September 12, 2022Date of Patent: October 24, 2023Assignee: PURE STORAGE, INC.Inventors: David Grunwald, Steven Hodgson, Ronald Karr, Kunal Trivedi, Christopher Golden, Thomas Gill, Connor Brooks, Zoheb Shivani
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Publication number: 20230289267Abstract: Continuing to service a dataset after prevailing in mediation, including: requesting, by a first storage system, mediation from a mediation service that is configured to resolve which storage system continues to service a dataset after the triggering event, wherein the dataset is synchronously replicated by a plurality of storage systems that includes the first storage system and a second storage system; and detaching the second storage system from a plurality of storage systems synchronously replicating the dataset.Type: ApplicationFiled: May 1, 2023Publication date: September 14, 2023Inventors: DAVID GRUNWALD, RONALD KARR, THOMAS GILL, JOHN COLGROVE, KUNAL TRIVEDI
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Publication number: 20230289268Abstract: Managing storage systems that are synchronously replicating a dataset, including: detecting a change in membership to the set of storage systems synchronously replicating the dataset; and applying one or more membership protocols to determine a new set of storage systems to synchronously replicate the dataset, wherein the one or more membership protocols include a quorum protocol, an external management protocol, or a racing protocol, and wherein one or more I/O operations directed to the dataset are applied to a new set of storage systems.Type: ApplicationFiled: May 19, 2023Publication date: September 14, 2023Inventors: RONALD KARR, DAVID GRUNWALD, NAVEEN NEELAKANTAM, ZOHEB SHIVANI, THOMAS GILL, CONNOR BROOKS, ASWIN KARUMBUNATHAN, KUNAL TRIVEDI
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Patent number: 11698844Abstract: Managing storage systems that are synchronously replicating a dataset, including: detecting a change in membership to the set of storage systems synchronously replicating the dataset; and applying one or more membership protocols to determine a new set of storage systems to synchronously replicate the dataset, wherein the one or more membership protocols include a quorum protocol, an external management protocol, or a racing protocol, and wherein one or more I/O operations directed to the dataset are applied to a new set of storage systems.Type: GrantFiled: May 26, 2022Date of Patent: July 11, 2023Assignee: Pure Storage, Inc.Inventors: Ronald Karr, David Grunwald, Naveen Neelakantam, Zoheb Shivani, Thomas Gill, Connor Brooks, Aswin Karumbunathan, Kunal Trivedi
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Patent number: 11645173Abstract: Resilient mediation between storage systems replicating a dataset, including: receiving, by a mediation service from one or more storage systems that synchronously replicate a dataset, a request to resolve which storage system continues to service a dataset after the request; and sending, from the mediation service to at least one of the storage systems, a positive mediation result, wherein: the storage systems that received the positive mediation result continue to process data storage requests directed to the dataset, and the storage systems that did not receive a positive mediation result from the mediation service do not continue to process data storage requests directed to the dataset.Type: GrantFiled: January 31, 2022Date of Patent: May 9, 2023Assignee: PURE STORAGE, INC.Inventors: David Grunwald, Ronald Karr, Thomas Gill, John Colgrove, Kunal Trivedi
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Publication number: 20230004467Abstract: Maintaining a synchronous replication relationship between two or more storage systems, including: receiving, by at least one of a plurality of storage systems across which a dataset will be synchronously replicated, timing information for at least one of the plurality of storage systems; and establishing, based on the timing information, a synchronous replication lease describing a period of time during which the synchronous replication relationship is valid, wherein a request to modify the dataset may only be acknowledged after a copy of the dataset has been modified on each of the storage systems.Type: ApplicationFiled: September 12, 2022Publication date: January 5, 2023Inventors: DAVID GRUNWALD, STEVEN HODGSON, RONALD KARR, KUNAL TRIVEDI, CHRISTOPHER GOLDEN, THOMAS GILL, CONNOR BROOKS, ZOHEB SHIVANI
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Patent number: 11442825Abstract: Establishing a synchronous replication relationship between two or more storage systems, including: identifying, for a dataset, a plurality of storage systems across which the dataset will be synchronously replicated; configuring one or more data communications links between each of the plurality of storage systems to be used for synchronously replicating the dataset; exchanging, between the plurality of storage systems, timing information for at least one of the plurality of storage systems; and establishing, in dependence upon the timing information for at least one of the plurality of storage systems, a synchronous replication lease, the synchronous replication lease identifying a period of time during which the synchronous replication relationship is valid.Type: GrantFiled: April 26, 2021Date of Patent: September 13, 2022Assignee: PURE STORAGE, INC.Inventors: David Grunwald, Steven Hodgson, Ronald Karr, Kunal Trivedi, Christopher Golden, Thomas Gill, Connor Brooks, Zoheb Shivani
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Publication number: 20220283916Abstract: Managing storage systems that are synchronously replicating a dataset, including: detecting a change in membership to the set of storage systems synchronously replicating the dataset; and applying one or more membership protocols to determine a new set of storage systems to synchronously replicate the dataset, wherein the one or more membership protocols include a quorum protocol, an external management protocol, or a racing protocol, and wherein one or more I/O operations directed to the dataset are applied to a new set of storage systems.Type: ApplicationFiled: May 26, 2022Publication date: September 8, 2022Inventors: RONALD KARR, DAVID GRUNWALD, NAVEEN NEELAKANTAM, ZOHEB SHIVANI, THOMAS GILL, CONNOR BROOKS, ASWIN KARUMBUNATHAN, KUNAL TRIVEDI
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Patent number: 11347606Abstract: Determining active membership among a set of storage systems synchronously replicating a dataset, where determining active membership includes: determining that a membership event corresponds to a change in membership to the set of storage systems synchronously replicating the dataset; applying, in dependence upon the membership event, one or more membership protocols to determine a new set of storage systems to synchronously replicate the dataset; and for one or more I/O operations directed to the dataset, applying the one or more I/O operations to the dataset synchronously replicated by the new set of storage systems.Type: GrantFiled: March 11, 2020Date of Patent: May 31, 2022Assignee: Pure Storage, Inc.Inventors: Connor Brooks, Thomas Gill, David Grunwald, Ronald Karr, Aswin Karumbunathan, Naveen Neelakantam, Zoheb Shivani, Kunal Trivedi
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Publication number: 20220156165Abstract: Resilient mediation between storage systems replicating a dataset, including: receiving, by a mediation service from one or more storage systems that synchronously replicate a dataset, a request to resolve which storage system continues to service a dataset after the request; and sending, from the mediation service to at least one of the storage systems, a positive mediation result, wherein: the storage systems that received the positive mediation result continue to process data storage requests directed to the dataset, and the storage systems that did not receive a positive mediation result from the mediation service do not continue to process data storage requests directed to the dataset.Type: ApplicationFiled: January 31, 2022Publication date: May 19, 2022Inventors: DAVID GRUNWALD, RONALD KARR, THOMAS GILL, JOHN COLGROVE, KUNAL TRIVEDI
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Patent number: 11237927Abstract: Mediating between storage systems synchronously replicating a dataset, including: requesting, by a first storage system in response to detecting a triggering event, a lock for a shared resource from a mediation service; requesting, by a second storage system in response to detecting the triggering event, the lock for the shared resource from the mediation service; and responsive to acquiring the lock from the mediation service, the first storage system, instead of the second storage system, processing data storage requests directed to the dataset that is synchronously replicated across the first storage system and the second storage system.Type: GrantFiled: December 4, 2019Date of Patent: February 1, 2022Assignee: Pure Storage, Inc.Inventors: John Colgrove, Thomas Gill, David Grunwald, Ronald Karr, Kunal Trivedi
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Publication number: 20210326223Abstract: Establishing a synchronous replication relationship between two or more storage systems, including: identifying, for a dataset, a plurality of storage systems across which the dataset will be synchronously replicated; configuring one or more data communications links between each of the plurality of storage systems to be used for synchronously replicating the dataset; exchanging, between the plurality of storage systems, timing information for at least one of the plurality of storage systems; and establishing, in dependence upon the timing information for at least one of the plurality of storage systems, a synchronous replication lease, the synchronous replication lease identifying a period of time during which the synchronous replication relationship is valid.Type: ApplicationFiled: April 26, 2021Publication date: October 21, 2021Inventors: DAVID GRUNWALD, STEVEN HODGSON, RONALD KARR, KUNAL TRIVEDI, CHRISTOPHER GOLDEN, THOMAS GILL, CONNOR BROOKS, ZOHEB SHIVANI
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Patent number: 10990490Abstract: Establishing a synchronous replication relationship between two or more storage systems, including: identifying, for a dataset, a plurality of storage systems across which the dataset will be synchronously replicated; configuring one or more data communications links between each of the plurality of storage systems to be used for synchronously replicating the dataset; exchanging, between the plurality of storage systems, timing information for at least one of the plurality of storage systems; and establishing, in dependence upon the timing information for at least one of the plurality of storage systems, a synchronous replication lease, the synchronous replication lease identifying a period of time during which the synchronous replication relationship is valid.Type: GrantFiled: July 23, 2019Date of Patent: April 27, 2021Assignee: Pure Storage, Inc.Inventors: Connor Brooks, Thomas Gill, Christopher Golden, David Grunwald, Steven Hodgson, Ronald Karr, Zoheb Shivani, Kunal Trivedi
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Publication number: 20200264960Abstract: Determining active membership among a set of storage systems synchronously replicating a dataset, where determining active membership includes: determining that a membership event corresponds to a change in membership to the set of storage systems synchronously replicating the dataset; applying, in dependence upon the membership event, one or more membership protocols to determine a new set of storage systems to synchronously replicate the dataset; and for one or more I/O operations directed to the dataset, applying the one or more I/O operations to the dataset synchronously replicated by the new set of storage systems.Type: ApplicationFiled: March 11, 2020Publication date: August 20, 2020Inventors: CONNOR BROOKS, THOMAS GILL, DAVID GRUNWALD, RONALD KARR, ASWIN KARUMBUNATHAN, NAVEEN NEELAKANTAM, ZOHEB SHIVANI, KUNAL TRIVEDI
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Patent number: 10671408Abstract: Automatic storage system configuration for mediation services that includes: determining that a particular storage system of the storage systems is not configured to request mediation from a mediation target for mediation between storage systems synchronously replicating a dataset; requesting, by the particular storage system from a configuration service, configuration information indicating one or more service handles for a mediation service; and configuring, in dependence upon the one or more service handles received from the configuration service, a mediation handler to communicate with the mediation service responsive to detecting a communication fault with one of the storage systems.Type: GrantFiled: November 1, 2017Date of Patent: June 2, 2020Assignee: Pure Storage, Inc.Inventors: John Colgrove, Thomas Gill, David Grunwald, Ronald Karr, Aditya Sethuraman, Kunal Trivedi, Eric Tung
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Patent number: 10613779Abstract: Embodiments are directed to determining active membership among a set of storage systems synchronously replicating a dataset. Determining active membership among a set of storage systems synchronously replicating a dataset includes determining that a membership event corresponds to a change in membership to the set of storage systems synchronously replicating the dataset. Determining active membership further includes applying, in dependence upon the membership event, one or more membership protocols to determine a new set of storage systems to synchronously replicate the dataset. Determining active membership also includes, for one or more I/O operations directed to the dataset, applying the one or more I/O operations to the dataset synchronously replicated by the new set of storage systems.Type: GrantFiled: December 7, 2017Date of Patent: April 7, 2020Assignee: Pure Storage, Inc.Inventors: Connor Brooks, Thomas Gill, David Grunwald, Ronald Karr, Aswin Karumbunathan, Naveen Neelakantam, Zoheb Shivani, Kunal Trivedi
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Patent number: 10558537Abstract: Mediating between storage systems synchronously replicating a dataset, including: requesting, by a first storage system in response to detecting a triggering event, a lock for a shared resource from a mediation service; requesting, by a second storage system in response to detecting the triggering event, the lock for the shared resource from the mediation service; and responsive to acquiring the lock from the mediation service, the first storage system, instead of the second storage system, processing data storage requests directed to the dataset that is synchronously replicated across the first storage system and the second storage system.Type: GrantFiled: September 13, 2017Date of Patent: February 11, 2020Assignee: Pure Storage, Inc.Inventors: John Colgrove, Thomas Gill, David Grunwald, Ronald Karr, Kunal Trivedi
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Patent number: 10365982Abstract: Establishing a synchronous replication relationship between two or more storage systems, including: identifying, for a dataset, a plurality of storage systems across which the dataset will be synchronously replicated; configuring one or more data communications links between each of the plurality of storage systems to be used for synchronously replicating the dataset; exchanging, between the plurality of storage systems, timing information for at least one of the plurality of storage systems; and establishing, in dependence upon the timing information for at least one of the plurality of storage systems, a synchronous replication lease, the synchronous replication lease identifying a period of time during which the synchronous replication relationship is valid.Type: GrantFiled: September 22, 2017Date of Patent: July 30, 2019Assignee: Pure Storage, Inc.Inventors: Connor Brooks, Thomas Gill, Christopher Golden, David Grunwald, Steven Hodgson, Ronald Karr, Zoheb Shivani, Kunal Trivedi