Patents by Inventor David Dion
David Dion 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: 20130013953Abstract: A health monitoring technique monitors the health and performance of applications executing in a guest partition in a virtualized environment. In an embodiment, a guest integration component interacts with an application through an application programming interface in order for the virtualization platform to monitor the health and performance of the application. In another embodiment, the guest integration component may include a monitoring agent that accesses an event log and/or a performance monitor log to access the health and performance of the application. The health and performance of the application may then be analyzed by the virtualization platform to determine an appropriate remedial action.Type: ApplicationFiled: July 7, 2011Publication date: January 10, 2013Applicant: Microsoft CorporationInventors: Christopher Eck, Lars Reuther, Rajesh Dave, Lokesh Srinivas Koppolu, Steven Ekren, David Dion, Sergey Meshcheryakov, Jonathan Fischer, Angshuman Bezbaruah
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Publication number: 20120272092Abstract: A method for providing fault-tolerant network communications between a plurality of nodes for an application, including providing a plurality of initial communications pathways over a plurality of networks coupled between the plurality of nodes, receiving a data packet on a sending node from the application, the sending node being one of the plurality of nodes, the data packet being addressed by the application to an address on one of the plurality of nodes, and selecting a first selected pathway for the data packet from among the plurality of initial communications pathways where the first selected pathway is a preferred pathway.Type: ApplicationFiled: July 2, 2012Publication date: October 25, 2012Applicant: Microsoft CorporationInventors: Michael T. Massa, Rudolf Opavsky, David A. Dion
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Publication number: 20120272093Abstract: A method for providing fault-tolerant network communications between a plurality of nodes for an application, including providing a plurality of initial communications pathways over a plurality of networks coupled between the plurality of nodes, receiving a data packet on a sending node from the application, the sending node being one of the plurality of nodes, the data packet being addressed by the application to an address on one of the plurality of nodes, and selecting a first selected pathway for the data packet from among the plurality of initial communications pathways where the first selected pathway is a preferred pathway.Type: ApplicationFiled: July 2, 2012Publication date: October 25, 2012Applicant: Microsoft CorporationInventors: Michael T. Massa, Rudolf Opavsky, David A. Dion
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Publication number: 20110238842Abstract: A method and system for increasing server cluster availability by requiring at a minimum only one node and a quorum replica set of replica members to form and operate a cluster. Replica members maintain cluster operational data. A cluster operates when one node possesses a majority of replica members, which ensures that any new or surviving cluster includes consistent cluster operational data via at least one replica member from the immediately prior cluster. Arbitration provides exclusive ownership by one node of the replica members, including at cluster formation, and when the owning node fails. Arbitration uses a fast mutual exclusion algorithm and a reservation mechanism to challenge for and defend the exclusive reservation of each member. A quorum replica set algorithm brings members online and offline with data consistency, including updating unreconciled replica members, and ensures consistent read and update operations.Type: ApplicationFiled: June 8, 2011Publication date: September 29, 2011Applicant: Microsoft CorporationInventors: Michael T. Massa, David A. Dion, Rajsekhar Das, Rushabh A. Doshi, David B. Lomet, Gor N. Nishanov, Philip A. Bernstein, Rod N. Gamache, Rohit Jain, Sunita Shrivastava
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Publication number: 20110238813Abstract: A method and system for increasing server cluster availability by requiring at a minimum only one node and a quorum replica set of replica members to form and operate a cluster. Replica members maintain cluster operational data. A cluster operates when one node possesses a majority of replica members, which ensures that any new or surviving cluster includes consistent cluster operational data via at least one replica member from the immediately prior cluster. Arbitration provides exclusive ownership by one node of the replica members, including at cluster formation, and when the owning node fails. Arbitration uses a fast mutual exclusion algorithm and a reservation mechanism to challenge for and defend the exclusive reservation of each member. A quorum replica set algorithm brings members online and offline with data consistency, including updating unreconciled replica members, and ensures consistent read and update operations.Type: ApplicationFiled: June 8, 2011Publication date: September 29, 2011Applicant: Microsoft CorporationInventors: MICHAEL T. MASSA, David A. Dion, Rajsekhar Das, Rushabh A. Doshi, David B. Lomet, Gor N. Nishanov, Philip A. Bernstein, Rod N. Gamache, Rohit Jain, Sunita Shrivastava
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Patent number: 7984155Abstract: A method and system for increasing server cluster availability by requiring at a minimum only one node and a quorum replica set of replica members to form and operate a cluster. Replica members maintain cluster operational data. A cluster operates when one node possesses a majority of replica members, which ensures that any new or surviving cluster includes consistent cluster operational data via at least one replica member from the immediately prior cluster. Arbitration provides exclusive ownership by one node of the replica members, including at cluster formation, and when the owning node fails. Arbitration uses a fast mutual exclusion algorithm and a reservation mechanism to challenge for and defend the exclusive reservation of each member. A quorum replica set algorithm brings members online and offline with data consistency, including updating unreconciled replica members, and ensures consistent read and update operations.Type: GrantFiled: June 14, 2010Date of Patent: July 19, 2011Assignee: Microsoft CorporationInventors: Michael T. Massa, David A. Dion, Raj Das, Rushabh Doshi, David B. Lomet, Gor V. Nishanov, Philip A. Bernstein, Rod N. Gamache, Rohit N. Jain, Sunita V. Nishanov
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Publication number: 20110004783Abstract: A method for providing fault-tolerant network communications between a plurality of nodes for an application, including providing a plurality of initial communications pathways over a plurality of networks coupled between the plurality of nodes, receiving a data packet on a sending node from the application, the sending node being one of the plurality of nodes, the data packet being addressed by the application to an address on one of the plurality of nodes, and selecting a first selected pathway for the data packet from among the plurality of initial communications pathways where the first selected pathway is a preferred pathway.Type: ApplicationFiled: September 16, 2010Publication date: January 6, 2011Applicant: Microsoft CorporationInventors: Michael T. Massa, Rudolf Opavsky, David A. Dion
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Publication number: 20110004782Abstract: A method for providing fault-tolerant network communications between a plurality of nodes for an application, including providing a plurality of initial communications pathways over a plurality of networks coupled between the plurality of nodes, receiving a data packet on a sending node from the application, the sending node being one of the plurality of nodes, the data packet being addressed by the application to an address on one of the plurality of nodes, and selecting a first selected pathway for the data packet from among the plurality of initial communications pathways where the first selected pathway is a preferred pathway.Type: ApplicationFiled: September 16, 2010Publication date: January 6, 2011Applicant: Microsoft CorporationInventors: Michael T. Massa, Rudolf Opavsky, David A. Dion
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Patent number: 7821930Abstract: A method for providing fault-tolerant network communications between a plurality of nodes for an application, including providing a plurality of initial communications pathways over a plurality of networks coupled between the plurality of nodes, receiving a data packet on a sending node from the application, the sending node being one of the plurality of nodes, the data packet being addressed by the application to an address on one of the plurality of nodes, and selecting a first selected pathway for the data packet from among the plurality of initial communications pathways where the first selected pathway is a preferred pathway.Type: GrantFiled: December 16, 2005Date of Patent: October 26, 2010Assignee: Microsoft CorporationInventors: Michael T. Massa, Rudolf Opavsky, David A. Dion
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Publication number: 20100250750Abstract: A method and system for increasing server cluster availability by requiring at a minimum only one node and a quorum replica set of replica members to form and operate a cluster. Replica members maintain cluster operational data. A cluster operates when one node possesses a majority of replica members, which ensures that any new or surviving cluster includes consistent cluster operational data via at least one replica member from the immediately prior cluster. Arbitration provides exclusive ownership by one node of the replica members, including at cluster formation, and when the owning node fails. Arbitration uses a fast mutual exclusion algorithm and a reservation mechanism to challenge for and defend the exclusive reservation of each member. A quorum replica set algorithm brings members online and offline with data consistency, including updating unreconciled replica members, and ensures consistent read and update operations.Type: ApplicationFiled: June 14, 2010Publication date: September 30, 2010Applicant: MICROSOFT CORPORATIONInventors: MICHAEL T. MASSA, DAVID A. DION, RAJSEKHAR DAS, RUSHABH A. DOSHI, DAVID B. LOMET, GOR V. NISHANOV, PHILIP A. BERNSTEIN, ROD N. GAMACHE, ROHIT JAIN, SUNITA SHRIVASTAVA
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Patent number: 7774469Abstract: A method and system for increasing server cluster availability by requiring at a minimum only one node and a quorum replica set of replica members to form and operate a cluster. Replica members maintain cluster operational data. A cluster operates when one node possesses a majority of replica members, which ensures that any new or surviving cluster includes consistent cluster operational data via at least one replica member from the immediately prior cluster. Arbitration provides exclusive ownership by one node of the replica members, including at cluster formation, and when the owning node fails. Arbitration uses a fast mutual exclusion algorithm and a reservation mechanism to challenge for and defend the exclusive reservation of each member. A quorum replica set algorithm brings members online and offline with data consistency, including updating unreconciled replica members, and ensures consistent read and update operations.Type: GrantFiled: September 12, 2005Date of Patent: August 10, 2010Inventors: Michael T. Massa, David A. Dion, Rajsekhar Das, Rushabh Doshi, David B. Lomet, Gor V. Nishanov, Philip A. Bernstein, Rod N. Gamache, Rohit Jain, Sunita V. Shrivastava
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Publication number: 20100077249Abstract: Described is a technology by which an owner node in a server cluster maintains ownership of a storage mechanism through a persistent reservation mechanism, while allowing non-owning nodes read and write access to the storage mechanism. An owner node writes a reservation key to a registration table associated with the storage mechanism. Non-owning nodes write a shared key that gives them read and write access. The owner node validates the shared keys against cluster membership data, and preempts (e.g., removes) any key deemed not valid. The owner node also defends ownership against challenges to ownership made by other nodes, so that another node can take over ownership if a (formerly) owning node is unable to defend, e.g., because of a failure.Type: ApplicationFiled: September 19, 2008Publication date: March 25, 2010Applicant: Microsoft CorporationInventors: Rajsekhar Das, David A. Dion
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Publication number: 20070058528Abstract: A method for providing fault-tolerant network communications between a plurality of nodes for an application, including providing a plurality of initial communications pathways over a plurality of networks coupled between the plurality of nodes, receiving a data packet on a sending node from the application, the sending node being one of the plurality of nodes, the data packet being addressed by the application to an address on one of the plurality of nodes, and selecting a first selected pathway for the data packet from among the plurality of initial communications pathways where the first selected pathway is a preferred pathway.Type: ApplicationFiled: December 16, 2005Publication date: March 15, 2007Applicant: Microsoft CorporationInventors: Michael Massa, Rudolf Opavsky, David Dion
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Publication number: 20060090095Abstract: A method and system for increasing server cluster availability by requiring at a minimum only one node and a quorum replica set of replica members to form and operate a cluster. Replica members maintain cluster operational data. A cluster operates when one node possesses a majority of replica members, which ensures that any new or surviving cluster includes consistent cluster operational data via at least one replica member from the immediately prior cluster. Arbitration provides exclusive ownership by one node of the replica members, including at cluster formation, and when the owning node fails. Arbitration uses a fast mutual exclusion algorithm and a reservation mechanism to challenge for and defend the exclusive reservation of each member. A quorum replica set algorithm brings members online and offline with data consistency, including updating unreconciled replica members, and ensures consistent read and update operations.Type: ApplicationFiled: September 12, 2005Publication date: April 27, 2006Applicant: Microsoft CorporationInventors: Michael Massa, David Dion, Rajsekhar Das, Rushabh Doshi, David Lomet, Gor Nishanov, Philip Bernstein, Rod Gamache, Rohit Jain, Sunita Shrivastava
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Patent number: 6163856Abstract: A file disaster recovery system that employs geographical replication of data from a local site to remote site in a such a manner that file requests from clients of the local site can be handled by a file server on the remote site following a failover from the local site to the remote site. Geographical data replication software running on a local server checkpoints to a log in local stable storage all information on file operations that change the file state of the local file system. According to a selected mode, the local geographical data replication software flushes information in the log pertaining to the file operations since the last flush to the remote site. At the remote site, compatible remote geographical data replication software running on a remote file server receives the flushed log and replicates in sequence order the file operations represented in the flushed log. The results of the operations are stored on remote stable storage. The local and remote servers can be clusters or single servers.Type: GrantFiled: May 29, 1998Date of Patent: December 19, 2000Assignee: Sun Microsystems, Inc.Inventors: David Dion, Yousef A. Khalidi, Madhusudhan Talluri, Anil Swaroop
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Patent number: 6144999Abstract: A file disaster recovery system that employs geographical replication of data from a local site to remote site in a such a manner that file requests from clients of the local site can be handled by a file server on the remote site following a failover from the local site to the remote site. Geographical data replication software running on a local server checkpoints to a log in local stable storage all information on file operations that change the file state of the local file system. According to a selected mode, the local geographical data replication software flushes information in the log pertaining to the file operations since the last flush to the remote site. At the remote site, compatible remote geographical data replication software running on a remote file server receives the flushed log and replicates in sequence order the file operations represented in the flushed log. The results of the operations are stored on remote stable storage. The local and remote servers can be clusters or single servers.Type: GrantFiled: May 29, 1998Date of Patent: November 7, 2000Assignee: Sun Microsystems, IncorporatedInventors: Yousef A. Khalidi, Madhusudhan Talluri, David Dion, Anil Swaroop