Patents by Inventor Norbert P. Kusters
Norbert P. Kusters 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: 11467732Abstract: A data storage system includes multiple head nodes and multiple data storage sleds mounted in a rack. For a particular volume or volume partition one of the head nodes is designated as a primary head node for the volume or volume partition. The primary head node is configured to store data for the volume in a data storage of the primary head node and cause the data to be replicated to a secondary head node. The primary head node is also configured to cause the data for the volume to be stored in a plurality of respective mass storage devices each in different ones of the plurality of data storage sleds of the data storage system.Type: GrantFiled: December 20, 2019Date of Patent: October 11, 2022Assignee: Amazon Technologies, Inc.Inventors: Norbert P. Kusters, Nachiappan Arumugam, Christopher Nathan Watson, Marc John Brooker, David R. Richardson, Danny Wei, John Luther Guthrie, II
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Patent number: 11444641Abstract: A data storage system includes multiple head nodes and data storage sleds. The data storage sleds include multiple mass storage devices and a sled controller. Respective ones of the head nodes are configured to obtain credentials for accessing particular portions of the mass storage devices of the data storage sleds. A sled controller of a data storage sled determines whether a head node attempting to perform a write on a mass storage device of a data storage sled that includes the sled controller is presenting with the write request a valid credential for accessing the mass storage devices of the data storage sled. If the credentials are valid, the sled controller causes the write to be performed and if the credentials are invalid, the sled controller returns a message to the head node indicating that it has been fenced off from the mass storage device.Type: GrantFiled: November 15, 2019Date of Patent: September 13, 2022Assignee: Amazon Technologies, Inc.Inventors: Norbert P. Kusters, Nachiappan Arumugam, Christopher Nathan Watson, Marc John Brooker, David R. Richardson, Danny Wei, John Luther Guthrie, II, Leah Shalev
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Patent number: 11438411Abstract: A data storage system includes a rack, multiple head nodes, multiple data storage sleds, and at least two networking devices. The at least two network devices are configured to implement at least two redundant networks within the data storage system. Also, each of the head nodes is assigned at least two network addresses for communication with the data storage sleds of the data storage system via the at least two networking devices. The data storage sleds each include multiple mass storage devices and a sled controller that is configured to couple with the at least two network switches. IO In some embodiments, the data storage system further includes redundant power systems within a rack in which the head nodes, the data storage sleds, and the at least two networking devices are mounted.Type: GrantFiled: September 4, 2020Date of Patent: September 6, 2022Assignee: Amazon Technologies, Inc.Inventors: Norbert P. Kusters, Nachiappan Arumugam, Christopher Nathan Watson, Marc John Brooker, David R. Richardson, Danny Wei, John Luther Guthrie, II
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Patent number: 11237772Abstract: A data storage system includes multiple data storage units and a zonal control plane. The zonal control plane assigns volumes to respective ones of the data storage units. The data storage units include multiple head nodes and data storage sleds. At least one of the head nodes implements a local control plane for the data storage unit. Also, the head nodes of each data storage unit are configured to service read and write requests directed to one or more volumes serviced by the data storage unit independent of the zonal control plane.Type: GrantFiled: December 13, 2019Date of Patent: February 1, 2022Assignee: Amazon Technologies, Inc.Inventors: Norbert P. Kusters, Nachiappan Arumugam, Christopher Nathan Watson, Marc John Brooker, David R. Richardson, Danny Wei, John Luther Guthrie, II
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Patent number: 11188469Abstract: A block-based storage system may implement page cache write logging. Write requests for a data volume maintained at a storage node may be received at a storage node. A page cache for may be updated in accordance with the request. A log record describing the page cache update may be stored in a page cache write log maintained in a persistent storage device. Once the write request is performed in the page cache and recorded in a log record in the page cache write log, the write request may be acknowledged. Upon recovery from a system failure where data in the page cache is lost, log records in the page cache write log may be replayed to restore to the page cache a state of the page cache prior to the system failure.Type: GrantFiled: December 6, 2019Date of Patent: November 30, 2021Assignee: Amazon Technologies, Inc.Inventors: Danny Wei, John Luther Guthrie, II, James Michael Thompson, Benjamin Arthur Hawks, Norbert P. Kusters
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Publication number: 20200404055Abstract: A data storage system includes a rack, multiple head nodes, multiple data storage sleds, and at least two networking devices. The at least two network devices are configured to implement at least two redundant networks within the data storage system. Also, each of the head nodes is assigned at least two network addresses for communication with the data storage sleds of the data storage system via the at least two networking devices. The data storage sleds each include multiple mass storage devices and a sled controller that is configured to couple with the at least two network switches. IO In some embodiments, the data storage system further includes redundant power systems within a rack in which the head nodes, the data storage sleds, and the at least two networking devices are mounted.Type: ApplicationFiled: September 4, 2020Publication date: December 24, 2020Applicant: Amazon Technologies, Inc.Inventors: Norbert P. Kusters, Nachiappan Arumugam, Christopher Nathan Watson, Marc John Brooker, David R. Richardson, Danny Wei, John Luther Guthrie, II
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Patent number: 10771550Abstract: A data storage system includes a rack, multiple head nodes, multiple data storage sleds, and at least two networking devices. The at least two network devices are configured to implement at least two redundant networks within the data storage system. Also, each of the head nodes is assigned at least two network addresses for communication with the data storage sleds of the data storage system via the at least two networking devices. The data storage sleds each include multiple mass storage devices and a sled controller that is configured to couple with the at least two network switches. In some embodiments, the data storage system further includes redundant power systems within a rack in which the head nodes, the data storage sleds, and the at least two networking devices are mounted.Type: GrantFiled: December 28, 2016Date of Patent: September 8, 2020Assignee: Amazon Technologies, Inc.Inventors: Norbert P. Kusters, Nachiappan Arumugam, Christopher Nathan Watson, Marc John Brooker, David R. Richardson, Danny Wei, John Luther Guthrie, II
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Publication number: 20200125271Abstract: A data storage system includes multiple head nodes and multiple data storage sleds mounted in a rack. For a particular volume or volume partition one of the head nodes is designated as a primary head node for the volume or volume partition. The primary head node is configured to store data for the volume in a data storage of the primary head node and cause the data to be replicated to a secondary head node. The primary head node is also configured to cause the data for the volume to be stored in a plurality of respective mass storage devices each in different ones of the plurality of data storage sleds of the data storage system.Type: ApplicationFiled: December 20, 2019Publication date: April 23, 2020Applicant: Amazon Technologies, Inc.Inventors: Norbert P. Kusters, Nachiappan Arumugam, Christopher Nathan Watson, Marc John Brooker, David R. Richardson, Danny Wei, John Luther Guthrie, II
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Publication number: 20200117399Abstract: A data storage system includes multiple data storage units and a zonal control plane. The zonal control plane assigns volumes to respective ones of the data storage units. The data storage units include multiple head nodes and data storage sleds. At least one of the head nodes implements a local control plane for the data storage unit. Also, the head nodes of each data storage unit are configured to service read and write requests directed to one or more volumes serviced by the data storage unit independent of the zonal control plane.Type: ApplicationFiled: December 13, 2019Publication date: April 16, 2020Applicant: Amazon Technologies, Inc.Inventors: Norbert P. Kusters, Nachiappan Arumugam, Christopher Nathan Watson, Marc John Brooker, David R. Richardson, Danny Wei, John Luther Guthrie, II
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Publication number: 20200110707Abstract: A block-based storage system may implement page cache write logging. Write requests for a data volume maintained at a storage node may be received at a storage node. A page cache for may be updated in accordance with the request. A log record describing the page cache update may be stored in a page cache write log maintained in a persistent storage device. Once the write request is performed in the page cache and recorded in a log record in the page cache write log, the write request may be acknowledged. Upon recovery from a system failure where data in the page cache is lost, log records in the page cache write log may be replayed to restore to the page cache a state of the page cache prior to the system failure.Type: ApplicationFiled: December 6, 2019Publication date: April 9, 2020Applicant: Amazon Technologies, Inc.Inventors: Danny Wei, John Luther Guthrie, II, James Michael Thompson, Benjamin Arthur Hawks, Norbert P. Kusters
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Publication number: 20200083909Abstract: A data storage system includes multiple head nodes and data storage sleds. The data storage sleds include multiple mass storage devices and a sled controller. Respective ones of the head nodes are configured to obtain credentials for accessing particular portions of the mass storage devices of the data storage sleds. A sled controller of a data storage sled determines whether a head node attempting to perform a write on a mass storage device of a data storage sled that includes the sled controller is presenting with the write request a valid credential for accessing the mass storage devices of the data storage sled. If the credentials are valid, the sled controller causes the write to be performed and if the credentials are invalid, the sled controller returns a message to the head node indicating that it has been fenced off from the mass storage device.Type: ApplicationFiled: November 15, 2019Publication date: March 12, 2020Applicant: Amazon Technologies, Inc.Inventors: Norbert P. Kusters, Nachiappan Arumugam, Christopher Nathan Watson, Marc John Brooker, David R. Richardson, Danny Wei, John Luther Guthrie, II, Leah Shalev
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Patent number: 10514847Abstract: A data storage system includes multiple head nodes and multiple data storage sleds mounted in a rack. For a particular volume or volume partition one of the head nodes is designated as a primary head node for the volume or volume partition. The primary head node is configured to store data for the volume in a data storage of the primary head node and cause the data to be replicated to a secondary head node. The primary head node is also configured to cause the data for the volume to be stored in a plurality of respective mass storage devices each in different ones of the plurality of data storage sleds of the data storage system.Type: GrantFiled: December 28, 2016Date of Patent: December 24, 2019Assignee: Amazon Technologies, Inc.Inventors: Norbert P. Kusters, Nachiappan Arumugam, Christopher Nathan Watson, Marc John Brooker, David R. Richardson, Danny Wei, John Luther Guthrie, II
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Patent number: 10509601Abstract: A data storage system includes multiple data storage units and a zonal control plane. The zonal control plane assigns volumes to respective ones of the data storage units. The data storage units include multiple head nodes and data storage sleds. At least one of the head nodes implements a local control plane for the data storage unit. Also, the head nodes of each data storage unit are configured to service read and write requests directed to one or more volumes serviced by the data storage unit independent of the zonal control plane.Type: GrantFiled: December 28, 2016Date of Patent: December 17, 2019Assignee: Amazon Technologies, Inc.Inventors: Norbert P. Kusters, Nachiappan Arumugam, Christopher Nathan Watson, Marc John Brooker, David R. Richardson, Danny Wei, John Luther Guthrie, II
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Patent number: 10503650Abstract: A block-based storage system may implement page cache write logging. Write requests for a data volume maintained at a storage node may be received at a storage node. A page cache for may be updated in accordance with the request. A log record describing the page cache update may be stored in a page cache write log maintained in a persistent storage device. Once the write request is performed in the page cache and recorded in a log record in the page cache write log, the write request may be acknowledged. Upon recovery from a system failure where data in the page cache is lost, log records in the page cache write log may be replayed to restore to the page cache a state of the page cache prior to the system failure.Type: GrantFiled: August 20, 2018Date of Patent: December 10, 2019Assignee: Amazon Technologies, Inc.Inventors: Danny Wei, John Luther Guthrie, II, James Michael Thompson, Benjamin Arthur Hawks, Norbert P. Kusters
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Patent number: 10484015Abstract: A data storage system includes multiple head nodes and data storage sleds. The data storage sleds include multiple mass storage devices and a sled controller. Respective ones of the head nodes are configured to obtain credentials for accessing particular portions of the mass storage devices of the data storage sleds. A sled controller of a data storage sled determines whether a head node attempting to perform a write on a mass storage device of a data storage sled that includes the sled controller is presenting with the write request a valid credential for accessing the mass storage devices of the data storage sled. If the credentials are valid, the sled controller causes the write to be performed and if the credentials are invalid, the sled controller returns a message to the head node indicating that it has been fenced off from the mass storage device.Type: GrantFiled: December 28, 2016Date of Patent: November 19, 2019Assignee: Amazon Technologies, Inc.Inventors: Norbert P. Kusters, Nachiappan Arumugam, Christopher Nathan Watson, Marc John Brooker, David R. Richardson, Danny Wei, John Luther Guthrie, II, Leah Shalev
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Publication number: 20180357173Abstract: A block-based storage system may implement page cache write logging. Write requests for a data volume maintained at a storage node may be received at a storage node. A page cache for may be updated in accordance with the request. A log record describing the page cache update may be stored in a page cache write log maintained in a persistent storage device. Once the write request is performed in the page cache and recorded in a log record in the page cache write log, the write request may be acknowledged. Upon recovery from a system failure where data in the page cache is lost, log records in the page cache write log may be replayed to restore to the page cache a state of the page cache prior to the system failure.Type: ApplicationFiled: August 20, 2018Publication date: December 13, 2018Applicant: Amazon Technologies, Inc.Inventors: Danny Wei, John Luther Guthrie, II, James Michael Thompson, Benjamin Arthur Hawks, Norbert P. Kusters
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Patent number: 10055352Abstract: A block-based storage system may implement page cache write logging. Write requests for a data volume maintained at a storage node may be received at a storage node. A page cache for may be updated in accordance with the request. A log record describing the page cache update may be stored in a page cache write log maintained in a persistent storage device. Once the write request is performed in the page cache and recorded in a log record in the page cache write log, the write request may be acknowledged. Upon recovery from a system failure where data in the page cache is lost, log records in the page cache write log may be replayed to restore to the page cache a state of the page cache prior to the system failure.Type: GrantFiled: March 11, 2014Date of Patent: August 21, 2018Assignee: Amazon Technologies, Inc.Inventors: Danny Wei, John Luther Guthrie, II, James Michael Thompson, Benjamin Arthur Hawks, Norbert P. Kusters
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Publication number: 20180183868Abstract: A data storage system includes a rack, multiple head nodes, multiple data storage sleds, and at least two networking devices. The at least two network devices are configured to implement at least two redundant networks within the data storage system. Also, each of the head nodes is assigned at least two network addresses for communication with the data storage sleds of the data storage system via the at least two networking devices. The data storage sleds each include multiple mass storage devices and a sled controller that is configured to couple with the at least two network switches. In some embodiments, the data storage system further includes redundant power systems within a rack in which the head nodes, the data storage sleds, and the at least two networking devices are mounted.Type: ApplicationFiled: December 28, 2016Publication date: June 28, 2018Applicant: Amazon Technologies, Inc.Inventors: NORBERT P. KUSTERS, NACHIAPPAN ARUMUGAM, CHRISTOPHER NATHAN WATSON, MARC JOHN BROOKER, DAVID R. RICHARDSON, DANNY WEI, JOHN LUTHER GUTHRIE, II
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Publication number: 20180181348Abstract: A data storage system includes multiple data storage units and a zonal control plane. The zonal control plane assigns volumes to respective ones of the data storage units. The data storage units include multiple head nodes and data storage sleds. At least one of the head nodes implements a local control plane for the data storage unit. Also, the head nodes of each data storage unit are configured to service read and write requests directed to one or more volumes serviced by the data storage unit independent of the zonal control plane.Type: ApplicationFiled: December 28, 2016Publication date: June 28, 2018Applicant: Amazon Technologies, Inc.Inventors: NORBERT P. KUSTERS, NACHIAPPAN ARUMUGAM, CHRISTOPHER NATHAN WATSON, MARC JOHN BROOKER, DAVID R. RICHARDSON, DANNY WEI, JOHN LUTHER GUTHRIE, II
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Publication number: 20180181330Abstract: A data storage system includes multiple head nodes and data storage sleds. The data storage sleds include multiple mass storage devices and a sled controller. Respective ones of the head nodes are configured to obtain credentials for accessing particular portions of the mass storage devices of the data storage sleds. A sled controller of a data storage sled determines whether a head node attempting to perform a write on a mass storage device of a data storage sled that includes the sled controller is presenting with the write request a valid credential for accessing the mass storage devices of the data storage sled. If the credentials are valid, the sled controller causes the write to be performed and if the credentials are invalid, the sled controller returns a message to the head node indicating that it has been fenced off from the mass storage device.Type: ApplicationFiled: December 28, 2016Publication date: June 28, 2018Applicant: Amazon Technologies, Inc.Inventors: NORBERT P. KUSTERS, NACHIAPPAN ARUMUGAM, CHRISTOPHER NATHAN WATSON, MARC JOHN BROOKER, DAVID R. RICHARDSON, DANNY WEI, JOHN LUTHER GUTHRIE, II, LEAH SHALEV