Patents by Inventor David B. Petersen

David B. Petersen 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).

  • Patent number: 10936447
    Abstract: Provided are a computer program product, system, and method for performing a failover between a first storage system and a second storage system. Data is synchronized between the first storage system and the second storage system. A failover is performed from the first storage system to the second storage system in response to a failover event at the first storage system while synchronizing the data. A determination is made that a first storage unit of the first storage system is inoperable and that that a second storage unit of the first storage system is operable in response to the failover event. In response to determining that the second storage unit is operable, a resynchronization is initiated to copy updates to a second storage unit of the second storage system mirroring the second storage unit of the first storage system to the second storage unit of the first storage system.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: March 2, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Michael Brandner, Michael Frankenberg, Alan G. McClure, David B. Petersen, Daniel Roman, Gail A. Spear, John G. Thompson
  • Publication number: 20200034210
    Abstract: A system for maintaining a two-site configuration for continuous availability over long distances may include a first computing site configured to execute a first instance associated with a priority workload, the first instance being designated as an active instance; a second computing site configured to execute a second instance of the priority workload, the second instance being designated as a standby instance; a software replication module configured to replicate a unit of work data associated with the priority workload from a first data object associated with the active instance to a second data object associated with the standby instance, and a hardware replication module configured to replicate an image from a first storage volume to a copy on a second storage volume, wherein the first storage volume is associated with the first computing site, and the second storage volume is associated with a third computing site.
    Type: Application
    Filed: October 3, 2019
    Publication date: January 30, 2020
    Inventors: Serge Bourbonnais, Paul M. Cadarette, Michael G. Fitzpatrick, David B. Petersen, Gregory W. Vance
  • Publication number: 20200026786
    Abstract: A method for resynchronizing at least one batch job is provided. The method may include detecting a type of region switch request. The method may further include stopping execution workloads on a primary system based on the switch request. The method may further include suspending software and hardware data replication from the primary system to the secondary system. The method may further utilizing proxy replication engine to determine a point-in-time (PIT) at which the execution is stopped and the suspension. The method may also include switching the replication of the software and hardware data to occur the secondary system to the primary system. The method may further include synchronizing the software and hardware data up to the determined point-in-time (PIT). The method may also include activating the execution of the plurality of workloads on the secondary system based on the determined point-in-time (PIT), switching, and synchronizing.
    Type: Application
    Filed: July 18, 2018
    Publication date: January 23, 2020
    Inventors: Paul M. Cadarette, David B. Petersen, Serge Bourbonnais, Michael G. Fitzpatrick, Pamela L. McLean, John G. Thompson, Gregory W. Vance, David A. Clitherow
  • Patent number: 10482104
    Abstract: A system for providing continuous availability comprises a second computing site that is geographically remote from a first computing site. The second computing site comprises a storage unit configured to store units of work data and data synchronously replicated from the first computing site. The second computing site further comprises a group of workloads configured to process the units of work data asynchronously replicated from the first computing site. The second computing site further comprises a software replication module configured not to replicate any data while the first computing site is available.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: November 19, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Serge Bourbonnais, Jing Cheng, You-Chin Fuh, David B. Petersen, James Z. Teng, Hong Jing Ying, Miao Zheng
  • Patent number: 10474694
    Abstract: A system for providing continuous availability comprises a second computing site that is geographically remote from a first computing site. The second computing site comprises a storage unit configured to store units of work data and data synchronously replicated from the first computing site. The second computing site further comprises a group of workloads configured to process the units of work data asynchronously replicated from the first computing site. The second computing site further comprises a software replication module configured not to replicate any data while the first computing site is available.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: November 12, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Serge Bourbonnais, Jing Cheng, You-Chin Fuh, David B. Petersen, James Z. Teng, Hong Jing Ying, Miao Zheng
  • Publication number: 20190012243
    Abstract: Provided are a computer program product, system, and method for performing a failover between a first storage system and a second storage system. Data is synchronized between the first storage system and the second storage system. A failover is performed from the first storage system to the second storage system in response to a failover event at the first storage system while synchronizing the data. A determination is made that a first storage unit of the first storage system is inoperable and that that a second storage unit of the first storage system is operable in response to the failover event. In response to determining that the second storage unit is operable, a resynchronization is initiated to copy updates to a second storage unit of the second storage system mirroring the second storage unit of the first storage system to the second storage unit of the first storage system.
    Type: Application
    Filed: September 11, 2018
    Publication date: January 10, 2019
    Inventors: Michael Brandner, Michael Frankenberg, Alan G. McClure, David B. Petersen, Daniel Roman, Gail A. Spear, John G. Thompson
  • Patent number: 10176215
    Abstract: A computer program product is provided for data currency improvement in a system having data sites running first and second applications within a common operating system hosted on a real or virtualized server and includes a computer readable storage medium having sequences of program instructions. The sequences of program instructions are readable and executable by a processing circuit to cause the processing circuit to establish first and second sites as active standby and active query sites, respectively, direct first and second transactions of the first application to the first site and to at least the second site, respectively, monitor replication delays from times at which data updates occur at the first site to times at which the data updates are replicated at least at the second site and set a delay for responding to the second transactions of the first application in accordance with the monitoring independent of a setting of any delay for responding to second application requests.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: January 8, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: John R. Eells, David B. Petersen
  • Patent number: 10133643
    Abstract: Provided are a computer program product, system, and method for performing a failover between a first storage system and a second storage system. Data is synchronized between the first storage system and the second storage system. A failover is performed from the first storage system to the second storage system in response to a failover event at the first storage system while synchronizing the data. A determination is made that a first storage unit of the first storage system is inoperable and that that a second storage unit of the first storage system is operable in response to the failover event. In response to determining that the second storage unit is operable, a resynchronization is initiated to copy updates to a second storage unit of the second storage system mirroring the second storage unit of the first storage system to the second storage unit of the first storage system.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: November 20, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Michael Brandner, Michael Frankenberg, Alan G. McClure, David B. Petersen, Daniel Roman, Gail A. Spear, John G. Thompson
  • Patent number: 10084858
    Abstract: A system for providing reliable availability of a general workload and continuous availability of a priority workload over long distances may include a first computing site configured to execute a first instance associated with the priority workload, wherein the first instance is designated as an active instance, a second computing site configured to execute a second instance of the priority workload, wherein the second instance is designated as a standby instance, a third computing site configured to restart a third instance associated with the general workload, and a workload availability module configured to synchronize a portion of data associated with the third instance with a corresponding portion of data associated with the second instance.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: September 25, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Serge Bourbonnais, Paul M. Cadarette, Michael G. Fitzpatrick, David B. Petersen, Gregory W. Vance
  • Publication number: 20180069922
    Abstract: A system for providing reliable availability of a general workload and continuous availability of a priority workload over long distances may include a first computing site configured to execute a first instance associated with the priority workload, wherein the first instance is designated as an active instance, a second computing site configured to execute a second instance of the priority workload, wherein the second instance is designated as a standby instance, a third computing site configured to restart a third instance associated with the general workload, and a workload availability module configured to synchronize a portion of data associated with the third instance with a corresponding portion of data associated with the second instance.
    Type: Application
    Filed: November 22, 2017
    Publication date: March 8, 2018
    Inventors: Serge Bourbonnais, Paul M. Cadarette, Michael G. Fitzpatrick, David B. Petersen, Gregory W. Vance
  • Patent number: 9882980
    Abstract: A system for providing reliable availability of a general workload and continuous availability of a priority workload over long distances may include a first computing site configured to execute a first instance associated with the priority workload, wherein the first instance is designated as an active instance, a second computing site configured to execute a second instance of the priority workload, wherein the second instance is designated as a standby instance, a third computing site configured to restart a third instance associated with the general workload, and a workload availability module configured to synchronize a portion of data associated with the third instance with a corresponding portion of data associated with the second instance.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: January 30, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Serge Bourbonnais, Paul M. Cadarette, Michael G. Fitzpatrick, David B. Petersen, Gregory W. Vance
  • Patent number: 9720741
    Abstract: A system for maintaining a two-site configuration for continuous availability over long distances may include a first computing site configured to execute a first instance associated with a priority workload, the first instance being designated as an active instance; a second computing site configured to execute a second instance of the priority workload, the second instance being designated as a standby instance; a software replication module configured to replicate a unit of work data associated with the priority workload from a first data object associated with the active instance to a second data object associated with the standby instance, and a hardware replication module configured to replicate an image from a first storage volume to a copy on a second storage volume, wherein the first storage volume is associated with the first computing site, and the second storage volume is associated with a third computing site.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: August 1, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Serge Bourbonnais, Paul M. Cadarette, Michael G. Fitzpatrick, David B. Petersen, Gregory W. Vance
  • Patent number: 9703608
    Abstract: Embodiments include a method, system, and computer program product for maintaining continuous availability. An embodiment of the present invention includes receiving a unit of work data. The unit of work data is distributed among the plurality of workloads using either an active/standby configuration, an active/query configuration, an active/partitioned configuration, or an active/active configuration. A primary workload is selected from a plurality of workloads to process the unit of work data based on a workload distribution rule. It is determined if the primary workload is capable of processing the unit of work data based on user configurable settings. If the primary site is capable of processing the unit of work data then the unit of work data is transmitted to the primary workload. Otherwise the unit of work data is transmitted to a secondary workload. The unit of work data is replicated between the primary workload and the secondary workload.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: July 11, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jaime F. Anaya, Paul M. Cadarette, Michael G. Fitzpatrick, David B. Petersen
  • Publication number: 20170147625
    Abstract: A computer program product is provided for data currency improvement in a system having data sites running first and second applications within a common operating system hosted on a real or virtualized server and includes a computer readable storage medium having sequences of program instructions. The sequences of program instructions are readable and executable by a processing circuit to cause the processing circuit to establish first and second sites as active standby and active query sites, respectively, direct first and second transactions of the first application to the first site and to at least the second site, respectively, monitor replication delays from times at which data updates occur at the first site to times at which the data updates are replicated at least at the second site and set a delay for responding to the second transactions of the first application in accordance with the monitoring independent of a setting of any delay for responding to second application requests.
    Type: Application
    Filed: November 24, 2015
    Publication date: May 25, 2017
    Inventors: John R. Eells, David B. Petersen
  • Patent number: 9641449
    Abstract: Embodiments include a method, system, and computer program product for maintaining continuous availability. An embodiment of the present invention includes receiving a unit of work data. The unit of work data is distributed among the plurality of workloads using either an active/standby configuration, an active/query configuration, an active/partitioned configuration, or an active/active configuration. A primary workload is selected from a plurality of workloads to process the unit of work data based on a workload distribution rule. It is determined if the primary workload is capable of processing the unit of work data based on user configurable settings. If the primary site is capable of processing the unit of work data then the unit of work data is transmitted to the primary workload. Otherwise the unit of work data is transmitted to a secondary workload. The unit of work data is replicated between the primary workload and the secondary workload.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: May 2, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jaime F. Anaya, Paul M. Cadarettte, Michael G. Fitzpatrick, David B. Petersen
  • Patent number: 9582532
    Abstract: A method for managing a plurality of workloads executing on both a primary system and on a secondary system, and synchronizing both a plurality of software data and a plurality of hardware data stored on the primary system with the secondary system is provided. The method may include receiving a region switch request and stopping the execution of the plurality of workloads on the primary system; suspending the replication of the plurality of software and hardware data stored on the primary system with the plurality of software and hardware data stored on the secondary system; and switching the replication of the plurality of software data and the plurality of hardware data that occurs from the primary system to the secondary system to occur from the secondary system to the primary system. The method may further include activating the execution of and synchronizing the plurality of workloads on the secondary system.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: February 28, 2017
    Assignee: International Business Machines Corporation
    Inventors: Serge Bourbonnais, Paul M. Cadarette, Michael G. Fitzpatrick, David B. Petersen, Gregory W. Vance
  • Publication number: 20170010922
    Abstract: A system for maintaining a two-site configuration for continuous availability over long distances may include a first computing site configured to execute a first instance associated with a priority workload, the first instance being designated as an active instance; a second computing site configured to execute a second instance of the priority workload, the second instance being designated as a standby instance; a software replication module configured to replicate a unit of work data associated with the priority workload from a first data object associated with the active instance to a second data object associated with the standby instance, and a hardware replication module configured to replicate an image from a first storage volume to a copy on a second storage volume, wherein the first storage volume is associated with the first computing site, and the second storage volume is associated with a third computing site.
    Type: Application
    Filed: September 22, 2016
    Publication date: January 12, 2017
    Inventors: Serge Bourbonnais, Paul M. Cadarette, Michael G. Fitzpatrick, David B. Petersen, Gregory W. Vance
  • Patent number: 9529883
    Abstract: A system for maintaining a two-site configuration for continuous availability over long distances may include a first computing site configured to execute a first instance associated with a priority workload, the first instance being designated as an active instance; a second computing site configured to execute a second instance of the priority workload, the second instance being designated as a standby instance; a software replication module configured to replicate a unit of work data associated with the priority workload from a first data object associated with the active instance to a second data object associated with the standby instance, and a hardware replication module configured to replicate an image from a first storage volume to a copy on a second storage volume, wherein the first storage volume is associated with the first computing site, and the second storage volume is associated with a third computing site.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: December 27, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Serge Bourbonnais, Paul M. Cadarette, Michael G. Fitzpatrick, David B. Petersen, Gregory W. Vance
  • Publication number: 20160371160
    Abstract: A system for maintaining a two-site configuration for continuous availability over long distances may include a first computing site configured to execute a first instance associated with a priority workload, the first instance being designated as an active instance; a second computing site configured to execute a second instance of the priority workload, the second instance being designated as a standby instance; a software replication module configured to replicate a unit of work data associated with the priority workload from a first data object associated with the active instance to a second data object associated with the standby instance, and a hardware replication module configured to replicate an image from a first storage volume to a copy on a second storage volume, wherein the first storage volume is associated with the first computing site, and the second storage volume is associated with a third computing site.
    Type: Application
    Filed: September 12, 2016
    Publication date: December 22, 2016
    Inventors: Serge Bourbonnais, Paul M. Cadarette, Michael G. Fitzpatrick, David B. Petersen, Gregory W. Vance
  • Publication number: 20160328303
    Abstract: Provided are a computer program product, system, and method for performing a failover between a first storage system and a second storage system. Data is synchronized between the first storage system and the second storage system. A failover is performed from the first storage system to the second storage system in response to a failover event at the first storage system while synchronizing the data. A determination is made that a first storage unit of the first storage system is inoperable and that that a second storage unit of the first storage system is operable in response to the failover event. In response to determining that the second storage unit is operable, a resynchronization is initiated to copy updates to a second storage unit of the second storage system mirroring the second storage unit of the first storage system to the second storage unit of the first storage system.
    Type: Application
    Filed: May 5, 2015
    Publication date: November 10, 2016
    Inventors: Michael Brandner, Michael Frankenberg, Alan G. McClure, David B. Petersen, Daniel Roman, Gail A. Spear, John G. Thompson