Patents by Inventor Robert K. Kast
Robert K. Kast 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: 8176276Abstract: Described area system and computer program product for producing a point in time copy of source data. A set of records corresponding to a time ordered series of recorded file operations as applied to said source data is received. The set of records includes one or more consistency point markers, each consistency point marker indicating a point in time at which said source data is in a consistent state when a portion of said recorded file operations occurring up to said point in time is applied to said source data. The recorded file operations corresponding to said set of records are applied to said copy of the source data until a marker record corresponding to a consistency point marker is determined. Also described is a target system for producing a point in time copy of source data including a data storage device including said copy of source data and a replication service.Type: GrantFiled: August 15, 2011Date of Patent: May 8, 2012Assignee: EMC CorporationInventors: Kenneth J. Galipeau, Robert K. Kast, Eran Orgad
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Patent number: 8126844Abstract: A replicated set of data is processed by receiving at a target, from one of a plurality of replication processing threads, a received batch of one or more non-synchronization tasks. It is determined that the received batch comprises a next batch to be performed at the target and the non-synchronization tasks included in the batch are performed in a task order.Type: GrantFiled: December 21, 2010Date of Patent: February 28, 2012Assignee: EMC CorporationInventor: Robert K. Kast
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Publication number: 20110295812Abstract: Described area system and computer program product for producing a point in time copy of source data. A set of records corresponding to a time ordered series of recorded file operations as applied to said source data is received. The set of records includes one or more consistency point markers, each consistency point marker indicating a point in time at which said source data is in a consistent state when a portion of said recorded file operations occurring up to said point in time is applied to said source data. The recorded file operations corresponding to said set of records are applied to said copy of the source data until a marker record corresponding to a consistency point marker is determined. Also described is a target system for producing a point in time copy of source data including a data storage device including said copy of source data and a replication service.Type: ApplicationFiled: August 15, 2011Publication date: December 1, 2011Inventors: Kenneth J. GALIPEAU, Robert K. KAST, Eran ORGAD
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Patent number: 8024535Abstract: Described area system and computer program product for producing a point in time copy of source data. A set of records corresponding to a time ordered series of recorded file operations as applied to said source data is received. The set of records includes one or more consistency point markers, each consistency point marker indicating a point in time at which said source data is in a consistent state when a portion of said recorded file operations occurring up to said point in time is applied to said source data. The recorded file operations corresponding to said set of records are applied to said copy of the source data until a marker record corresponding to a consistency point marker is determined. Also described is a target system for producing a point in time copy of source data including a data storage device including said copy of source data and a replication service.Type: GrantFiled: October 31, 2007Date of Patent: September 20, 2011Assignee: EMC CorporationInventors: Kenneth J. Galipeau, Robert K. Kast, Eran Orgad
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Patent number: 8005795Abstract: Described are a method and computer program product for capturing file operations applied to a data set. One or more file operations having a corresponding time sequence which modify said data set are recorded. A request for a copy of the data set in a consistent state is received. It is determined at which point in said corresponding time sequence said data set is in a consistent state as a result of applying a portion of said file operations. The point in said corresponding time sequence at which said data set is in a consistent state is marked. A system is also described for capturing file operations as applied to a data set. The system includes a mirroring driver and a replication service. Also described is a data structure stored in a memory including a plurality of records corresponding to a time sequence of recorded file operations, and one or more consistency point markers inserted into said plurality of records.Type: GrantFiled: March 4, 2005Date of Patent: August 23, 2011Assignee: EMC CorporationInventors: Kenneth J. Galipeau, Robert K. Kast, Eran Orgad
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Publication number: 20110093855Abstract: A replicated set of data is processed by receiving at a target, from one of a plurality of replication processing threads, a received batch of one or more non-synchronization tasks. It is determined that the received batch comprises a next batch to be performed at the target and the non-synchronization tasks included in the batch are performed in a task order.Type: ApplicationFiled: December 21, 2010Publication date: April 21, 2011Applicant: EMC CORPORATIONInventor: Robert K. Kast
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Patent number: 7882061Abstract: Data is replicated from a source to a target. For each of a plurality of replication processing threads (one thread at a time) a corresponding batch of one or more non-synchronization tasks is formed. Each batch of one or more non-synchronization tasks includes a next consecutive set of non-synchronization tasks drawn from a source of non-synchronization tasks that is common to the replication processing threads included in the plurality of replication processing threads. A replication processing thread that has associated with it an outstanding batch of one or more non-synchronization tasks that the thread has not finished communicates via an associated connection to the target as needed to perform such unfinished tasks included in the outstanding batch without regard to whether other threads included in the plurality of threads are communicating with the target via one or more other connections to the target.Type: GrantFiled: December 21, 2006Date of Patent: February 1, 2011Assignee: EMC CorporationInventor: Robert K. Kast
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Patent number: 7788458Abstract: Described are a method, computer program product, and system for obtaining a copy of source data in a consistent state. One or more file operations having a corresponding time sequence which modify said source data are recorded. A request for a copy of the source data in a consistent state is received. It is determined at which point in the corresponding time sequence said source data is in a consistent state as a result of applying a portion of the file operations. The point in the corresponding time sequence at which the source data is in a consistent state is marked. The portion of file operations determined to place the source data in a consistent state is applied to the copy of the source data.Type: GrantFiled: December 28, 2006Date of Patent: August 31, 2010Assignee: EMC CorporationInventors: Kenneth J. Galipeau, Robert K. Kast, Eran Orgad
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Patent number: 7310716Abstract: Described area system and computer program product for producing a point in time copy of source data. A set of records corresponding to a time ordered series of recorded file operations as applied to said source data is received. The set of records includes one or more consistency point markers, each consistency point marker indicating a point in time at which said source data is in a consistent state when a portion of said recorded file operations occurring up to said point in time is applied to said source data. The recorded file operations corresponding to said set of records are applied to said copy of the source data until a marker record corresponding to a consistency point marker is determined. Also described is a target system for producing a point in time copy of source data including a data storage device including said copy of source data and a replication service.Type: GrantFiled: March 4, 2005Date of Patent: December 18, 2007Assignee: EMC CorporationInventors: Kenneth J. Galipeau, Robert K. Kast, Eran Orgad
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Patent number: 7177994Abstract: Described are a method, computer program product, and system for obtaining a copy of source data in a consistent state. One or more file operations having a corresponding time sequence which modify said source data are recorded. A request for a copy of the source data in a consistent state is received. It is determined at which point in the corresponding time sequence said source data is in a consistent state as a result of applying a portion of the file operations. The point in the corresponding time sequence at which the source data is in a consistent state is marked. The portion of file operations determined to place the source data in a consistent state is applied to the copy of the source data.Type: GrantFiled: March 4, 2005Date of Patent: February 13, 2007Assignee: EMC CorporationInventors: Kenneth J. Galipeau, Robert K. Kast, Eran Orgad