Patents by Inventor Peter Frank Corbett
Peter Frank Corbett 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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Publication number: 20240080362Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.Type: ApplicationFiled: November 13, 2023Publication date: March 7, 2024Inventors: Santosh Ananth Rao, Geoffrey Stewart Brown, Srikumar Natarajan, Pranab Patnaik, Kai Tan, Peter Frank Corbett, Vivek Venkatesan
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Patent number: 11880343Abstract: A method and apparatus for replicating a data container of a source storage server at the logical level in an unordered stream of individual data units are described. In certain embodiments, the replication operations can be performed without regard to the differences in geometry of physical persistent storage of the source and destination storage servers and without regard to the differences in data container format of the source and destination storage servers. An initial replication operation of the source data container is performed by transferring the data objects within the source data container to a replica data container in the destination storage server as an unordered stream of individual data units while preserving data object identifiers of the source data objects. Afterwards, incremental replication operations can be performed to capture modifications to the source data container over time after the initial replication operation.Type: GrantFiled: November 30, 2020Date of Patent: January 23, 2024Assignee: NetApp, Inc.Inventors: Bruce Leverett, Michael Kazar, Alan Stuart Driscoll, Peter Frank Corbett, Devang K. Shah, Srishylam Simharajan, Toby Smith
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Publication number: 20240012585Abstract: A drive-assisted RAID storage system includes a RAID storage controller device coupled to RAID primary data storage devices each storing primary data for a stripe, and a RAID parity data storage device storing parity data for the stripe. The RAID parity data storage device receives stripe parity data update commands from the RAID storage controller device that cause it to retrieve respective interim parity data generated by each of the RAID primary data storage devices and including respective stripe update sequence identifiers. The RAID parity data storage device uses the respective interim parity data to generate updated parity data. When the respective stripe update sequence identifiers in the respective interim parity data that was used to generate the updated parity data indicate that parity update operations for the stripe are complete, the RAID parity data storage device transmits a stripe parity update completion message to the RAID storage controller device.Type: ApplicationFiled: July 7, 2022Publication date: January 11, 2024Inventors: Peter Frank Corbett, William Emmett Lynn
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Patent number: 11818212Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.Type: GrantFiled: October 29, 2020Date of Patent: November 14, 2023Assignee: NetApp, Inc.Inventors: Santosh Ananth Rao, Geoffrey Stewart Brown, Srikumar Natarajan, Pranab Patnaik, Kai Tan, Peter Frank Corbett, Vivek Venkatesan
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Publication number: 20210081369Abstract: A method and apparatus for replicating a data container of a source storage server at the logical level in an unordered stream of individual data units are described. In certain embodiments, the replication operations can be performed without regard to the differences in geometry of physical persistent storage of the source and destination storage servers and without regard to the differences in data container format of the source and destination storage servers. An initial replication operation of the source data container is performed by transferring the data objects within the source data container to a replica data container in the destination storage server as an unordered stream of individual data units while preserving data object identifiers of the source data objects. Afterwards, incremental replication operations can be performed to capture modifications to the source data container over time after the initial replication operation.Type: ApplicationFiled: November 30, 2020Publication date: March 18, 2021Inventors: Bruce Leverett, Michael Kazar, Alan Stuart Driscoll, Peter Frank Corbett, Devang K. Shah, Srishylam Simharajan, Toby Smith
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Publication number: 20210044656Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.Type: ApplicationFiled: October 29, 2020Publication date: February 11, 2021Inventors: Santosh Ananth Rao, Geoffrey Stewart Brown, Srikumar Natarajan, Pranab Patnaik, Kai Tan, Peter Frank Corbett, Vivek Venkatesan
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Patent number: 10862966Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.Type: GrantFiled: November 13, 2018Date of Patent: December 8, 2020Assignee: NetApp Inc.Inventors: Santosh Ananth Rao, Geoffrey Stewart Brown, Srikumar Natarajan, Pranab Patnaik, Kai Tan, Peter Frank Corbett, Vivek Venkatesan
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Patent number: 10860542Abstract: A method and apparatus for replicating a data container of a source storage server at the logical level in an unordered stream of individual data units are described. In certain embodiments, the replication operations can be performed without regard to the differences in geometry of physical persistent storage of the source and destination storage servers and without regard to the differences in data container format of the source and destination storage servers. An initial replication operation of the source data container is performed by transferring the data objects within the source data container to a replica data container in the destination storage server as an unordered stream of individual data units while preserving data object identifiers of the source data objects. Afterwards, incremental replication operations can be performed to capture modifications to the source data container over time after the initial replication operation.Type: GrantFiled: May 1, 2017Date of Patent: December 8, 2020Assignee: NetApp Inc.Inventors: Bruce Leverett, Michael Kazar, Alan Stuart Driscoll, Peter Frank Corbett, Devang K. Shah, Srishylam Simharajan, Toby Smith
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Publication number: 20190082013Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.Type: ApplicationFiled: November 13, 2018Publication date: March 14, 2019Inventors: Santosh Ananth Rao, Geoffrey Stewart Brown, Srikumar Natarajan, Pranab Patnaik, Kai Tan, Peter Frank Corbett, Vivek Venkatesan
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Publication number: 20170249329Abstract: A method and apparatus for replicating a data container of a source storage server at the logical level in an unordered stream of individual data units are described. In certain embodiments, the replication operations can be performed without regard to the differences in geometry of physical persistent storage of the source and destination storage servers and without regard to the differences in data container format of the source and destination storage servers. An initial replication operation of the source data container is performed by transferring the data objects within the source data container to a replica data container in the destination storage server as an unordered stream of individual data units while preserving data object identifiers of the source data objects. Afterwards, incremental replication operations can be performed to capture modifications to the source data container over time after the initial replication operation.Type: ApplicationFiled: May 1, 2017Publication date: August 31, 2017Inventors: Bruce Leverett, Michael Kazar, Alan Stuart Driscoll, Peter Frank Corbett, Devang K. Shah, Srishylam Simharajan, Toby Smith
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Patent number: 9659026Abstract: A method and apparatus for replicating a data container of a source storage server at the logical level in an unordered stream of individual data units are described. In certain embodiments, the replication operations can be performed without regard to the differences in geometry of physical persistent storage of the source and destination storage servers and without regard to the differences in data container format of the source and destination storage servers. An initial replication operation of the source data container is performed by transferring the data objects within the source data container to a replica data container in the destination storage server as an unordered stream of individual data units while preserving data object identifiers of the source data objects. Afterwards, incremental replication operations can be performed to capture modifications to the source data container over time after the initial replication operation.Type: GrantFiled: December 31, 2013Date of Patent: May 23, 2017Assignee: NetApp, Inc.Inventors: Bruce Leverett, Michael Kazar, Alan Stuart Driscoll, Peter Frank Corbett, Devang K. Shah, Srishylam Simharajan, Toby Smith
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Publication number: 20160119427Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.Type: ApplicationFiled: October 20, 2015Publication date: April 28, 2016Applicant: NETAPP, INC.Inventors: Santosh Ananth Rao, Geoffrey Stewart Brown, Srikumar Natarajan, Pranab Patnaik, Kai Tan, Peter Frank Corbett, Vivek Venkatesan
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Patent number: 9203900Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.Type: GrantFiled: January 26, 2012Date of Patent: December 1, 2015Assignee: NetApp, Inc.Inventors: Santosh Anath Rao, Geoffrey Stewart Brown, Srikumar Natarajan, Pranab Patnaik, Kai Tan, Peter Frank Corbett, Vivek Venkatesan
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Publication number: 20140195490Abstract: A method and apparatus for replicating a data container of a source storage server at the logical level in an unordered stream of individual data units are described. In certain embodiments, the replication operations can be performed without regard to the differences in geometry of physical persistent storage of the source and destination storage servers and without regard to the differences in data container format of the source and destination storage servers. An initial replication operation of the source data container is performed by transferring the data objects within the source data container to a replica data container in the destination storage server as an unordered stream of individual data units while preserving data object identifiers of the source data objects. Afterwards, incremental replication operations can be performed to capture modifications to the source data container over time after the initial replication operation.Type: ApplicationFiled: December 31, 2013Publication date: July 10, 2014Inventors: Bruce Leverett, Michael Kazar, Alan Stuart Driscoll, Peter Frank Corbett, Devang K. Shah, Srishylam Simharajan, Toby Smith
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Patent number: 8655848Abstract: A method and apparatus for replicating a data container of a source storage server at the logical level in an unordered stream of individual data units are described. In certain embodiments, the replication operations can be performed without regard to the differences in geometry of physical persistent storage of the source and destination storage servers and without regard to the differences in data container format of the source and destination storage servers. An initial replication operation of the source data container is performed by transferring the data objects within the source data container to a replica data container in the destination storage server as an unordered stream of individual data units while preserving data object identifiers of the source data objects. Afterwards, incremental replication operations can be performed to capture modifications to the source data container over time after the initial replication operation.Type: GrantFiled: February 26, 2010Date of Patent: February 18, 2014Assignee: NetApp, Inc.Inventors: Bruce Leverett, Michael Kazar, Srishylam Simharajan, Peter Frank Corbett, Toby Smith, Alan Stuart Driscoll, Devang K. Shah
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Publication number: 20130080559Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.Type: ApplicationFiled: January 26, 2012Publication date: March 28, 2013Applicant: NetApp, Inc.Inventors: Santosh Anath Rao, Geoffrey Stewart Brown, Srikumar Natarajan, Pranab Patnaik, Kai Tan, Peter Frank Corbett, Vivek Venkatesan
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Patent number: 8326798Abstract: A replication operation service migrates data from a source volume having a source file system type to a destination volume having a destination file system type, where the source file system type may be different from the destination file system type. The replication operation is completed without interrupting the operations of a client device in the system. A stable copy of the source file system is generated on the source volume. A file system agnostic representation of a portion of the data in the source volume is generated from the stable copy. The representation is transmitted to the destination volume where it is converted to conform to the destination file system type.Type: GrantFiled: September 14, 2009Date of Patent: December 4, 2012Assignee: Network Appliance, Inc.Inventors: Alan Stuart Driscoll, Peter Frank Corbett, Toby Smith, Devang K. Shah, Srishylam Simharajan, Keith Allen Arner, Joe Warren Dukes, Jr.
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Patent number: 6539435Abstract: The invention is a system and method for establishing a communication connection between two programs, each running on multiple processors of a distributed or shared memory parallel computer, or on multiple computers in a cluster of workstations or a set of network connected workstations. The invention includes all protocols that require one of the two programs that wish to communicate to actively initiate the communication session, while the other program passively accepts such direct communication session initiations. No task of the active program of the connection will attempt to communicate with tasks of the passive program until after it has been notified that all passive program tasks are prepared to receive messages, and that all other active program tasks are prepare to receive messages from the passive programs tasks, and vice versa.Type: GrantFiled: July 14, 1997Date of Patent: March 25, 2003Assignee: International Business Machines CorporationInventors: Anthony Simon Bolmarcich, Peter Frank Corbett, Julian Satran
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Patent number: 5862158Abstract: A method for storing redundant information in an array of data storage devices such that data is protected against two simultaneous storage device failures. The method assigns each data block to two different parity sets, each protected by a different parity block. The protected data blocks and the parity block each reside on a different data storage device.Type: GrantFiled: February 14, 1996Date of Patent: January 19, 1999Assignee: International Business Machines CorporationInventors: Sandra Johnson Baylor, Peter Frank Corbett, Chan-ik Park
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Patent number: 5742812Abstract: A protocol for achieving atomic multicast in a parallel or distributed computing environment. The protocol guarantees concurrency atomicity with a maximum of m-1 message passes among the m server nodes of the system. Under one embodiment of the protocol, an access component message is transferred to the server nodes storing data to be accessed. The first server node of the plurality generates a token to be passed among the accessed nodes. A node can not process its request until it receives the token. A node may pass the token immediately upon ensuring that it is the current expected token.Type: GrantFiled: August 28, 1995Date of Patent: April 21, 1998Assignee: International Business Machines CorporationInventors: Sandra Johnson Baylor, Peter Frank Corbett, Dror Gershon Feitelson