Patents by Inventor Svetlana O. Sokolova
Svetlana O. Sokolova 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: 10997028Abstract: The system, devices, and methods disclosed herein relate to a dynamic, robust method for choosing a “winner” in an active-active data storage network. In the systems and methods disclosed herein, two or more intelligent nodes within an active-active data storage network periodically exchange operational parameters in an ongoing negotiation regarding who should be the winner in the event of a communication failure within the network. The winner is chosen dynamically based on the operational parameters. A witness is kept apprised of the winner. In the event of a communication failure between the two nodes, the winner is chosen by the witness based on the most recently negotiated lock file reported by one or both of the nodes.Type: GrantFiled: January 30, 2020Date of Patent: May 4, 2021Assignee: EMC IP Holding Company LLCInventors: Svetlana O. Sokolova, Benjamin Yoder, Deepak Vokaliga
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Publication number: 20200167233Abstract: The system, devices, and methods disclosed herein relate to a dynamic, robust method for choosing a “winner” in an active-active data storage network. In the systems and methods disclosed herein, two or more intelligent nodes within an active-active data storage network periodically exchange operational parameters in an ongoing negotiation regarding who should be the winner in the event of a communication failure within the network. The winner is chosen dynamically based on the operational parameters. A witness is kept apprised of the winner. In the event of a communication failure between the two nodes, the winner is chosen by the witness based on the most recently negotiated lock file reported by one or both of the nodes.Type: ApplicationFiled: January 30, 2020Publication date: May 28, 2020Inventors: Svetlana O. Sokolova, Benjamin Yoder, Deepak Vokaliga
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Patent number: 10592342Abstract: The system, devices, and methods disclosed herein relate to a dynamic, robust method for choosing a “winner” in an active-active data storage network. In the systems and methods disclosed herein, two or more intelligent nodes within an active-active data storage network periodically exchange operational parameters in an ongoing negotiation regarding who should be the winner in the event of a communication failure within the network. The winner is chosen dynamically based on the operational parameters. A witness is kept apprised of the winner. In the event of a communication failure between the two nodes, the winner is chosen by the witness based on the most recently negotiated lock file reported by one or both of the nodes.Type: GrantFiled: February 2, 2018Date of Patent: March 17, 2020Assignee: EMC IP Holding Company LLCInventors: Svetlana O. Sokolova, Benjamin Yoder, Deepak Vokaliga
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Patent number: 10409838Abstract: Described are techniques for maintaining and using registration and reservation information in an active-active configuration that provides automated data replication of a logical device. Various commands may be issued from one or more hosts to read and modify registration and reservation information in the active-active configuration. Processing is performed to service the various commands and provide a host or client with a consolidated logical view of a data storage system including the logical device where the host is allowed to issue I/Os over multiple paths to the logical device. Depending on the command, such processing may include replicating or mirroring reservation state information between two data storage systems each including a different device configured as the logical device.Type: GrantFiled: March 18, 2016Date of Patent: September 10, 2019Assignee: EMC IP Holding Company LLCInventors: Subin George, Svetlana O. Sokolova, Arieh Don
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Patent number: 10200304Abstract: Managing reservations for at least two different sites competing for a resource includes maintaining a table of groups of sites, where each group competes for the same resource, one of the different sites requesting a reservation for a particular resource, determining if the reservation is available by consulting the table, denying the reservation to the one of the at least two different sites in response to access having been previously reserved for an other one of the different sites, and granting the reservation to the one of the at least two different sites and reserving access for the one of the at least two different sites in response to the resource being available. The managed resources may correspond to data storage and the two different sites may be mirrored storage devices. In response to a failure of communication between the two different sites, pending writes may be failed.Type: GrantFiled: December 29, 2015Date of Patent: February 5, 2019Assignee: EMC IP Holding Company LLCInventors: Deepak Vokaliga, Svetlana O. Sokolova, Mark J. Halstead, Benjamin Yoder
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Patent number: 10193767Abstract: Providing multiple witnesses that manage resources for at least two different sites includes one of the sites choosing a particular one of the witnesses, the one of the at least two different sites confirming that the particular one of the witnesses is available to manage resources, the one of the at least two different sites communicating with other ones of the at least two different sites to determine if the particular one of the witnesses is acceptable to the other ones of the at least two different sites, and choosing the particular one of the witnesses in response to the particular one of the witnesses being available to manage resources and the particular one of the witnesses being acceptable to all of the other ones of the at least two different sites. The managed resources may correspond to data storage and the sites may be mirrored storage devices.Type: GrantFiled: December 29, 2015Date of Patent: January 29, 2019Assignee: EMC IP Holding Company LLCInventors: Deepak Vokaliga, Svetlana O. Sokolova, Benjamin Yoder
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Patent number: 7720094Abstract: Wireless network demands continually increase as wireless service providers pursue additional service capabilities. In a cellular communication system, leased lines between remote cell sites and the corresponding Mobile Switching Offices (MSOs) remain a major operating cost. Bandwidth reduction by identification and elimination of payload data and control information which need not be fully replicated because it can be deduced from information accessible or previously transmitted allows fewer lines to support the same bandwidth. A wireless access gateway is operable to aggregate such redundant and regenerable data on a backhaul link between a wireless cell site and the corresponding mobile switching office (MSO) to provide low-latency, type specific lossless bandwidth reduction. The wireless access gateway identifies regenerable information and eliminates portions of the data which the device need not transmit because the data is redundant, or accessible or recreatable, at the receiving side.Type: GrantFiled: February 21, 2006Date of Patent: May 18, 2010Assignee: Verso Backhaul Solutions, Inc.Inventors: R. Brough Turner, Kevin J. Breummer, Michael R. Matatia, Andrei E. Toma, Svetlana O. Sokolova
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Patent number: 7072296Abstract: Wireless network demands continually increase as wireless service providers pursue additional service capabilities. In a cellular communication system, leased lines between remote cell sites and the corresponding Mobile Switching Offices (MSOs) remain a major operating cost. Bandwidth reduction by identification and elimination of payload data and control information which need not be fully replicated because it can be deduced from information accessible or previously transmitted allows fewer lines to support the same bandwidth. A wireless access gateway is operable to aggregate such redundant and regenerable data on a backhaul link between a wireless cell site and the corresponding mobile switching office (MSO) to provide low-latency, type specific lossless bandwidth reduction. The wireless access gateway identifies regenerable information and eliminates portions of the data which the device need not transmit because the data is redundant, or accessible or recreatable, at the receiving side.Type: GrantFiled: August 1, 2003Date of Patent: July 4, 2006Assignee: NMS Communications CorporationInventors: R. Brough Turner, Kevin J. Bruemmer, Michael R. Matatia, Andrei E. Toma, Aram Falsafi, Svetlana O. Sokolova, Murtaza Amiji, Charles C. Linton, James M. Van Donsel, Benoit Delorme, Paul Trudel, David Ouellet, Jean-Hugues Deschenes, Daniel F. Daly
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Publication number: 20040077345Abstract: Wireless network demands continually increase as wireless service providers pursue additional service capabilities. In a cellular communication system, leased lines between remote cell sites and the corresponding Mobile Switching Offices (MSOs) remain a major operating cost. Bandwidth reduction by identification and elimination of payload data and control information which need not be fully replicated because it can be deduced from information accessible or previously transmitted allows fewer lines to support the same bandwidth. A wireless access gateway is operable to aggregate such redundant and regenerable data on a backhaul link between a wireless cell site and the corresponding mobile switching office (MSO) to provide low-latency, type specific lossless bandwidth reduction. The wireless access gateway identifies regenerable information and eliminates portions of the data which the device need not transmit because the data is redundant, or accessible or recreatable, at the receiving side.Type: ApplicationFiled: August 1, 2003Publication date: April 22, 2004Inventors: R. Brough Turner, Kevin J. Bruemmer, Michael R. Matatia, Andrei E. Toma, Aram Falsafi, Svetlana O. Sokolova, Murtaza Amiji, Charles C. Linton, James M. Van Donsel, Benoit Delorme, Paul Trudel, David Ouellet, Jean-Hugues Deschenes, Daniel F. Daly