Patents by Inventor Michael S. Gagner

Michael S. Gagner 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: 10824364
    Abstract: In one embodiment, a local copy target is also a local primary of an incomplete consistency group of an ongoing asynchronous mirror relationship. Completion of the consistency group is facilitated notwithstanding that the local copy operation was initiated after the consistency group was initiated. In one aspect, asynchronous data mirroring logic, prior to the overwriting of existing data of the target, reads the existing data of the target for purposes of mirroring the read data to a remote secondary target of the consistency group. As a result, existing data of the local copy target which is also a local primary source of the consistency group, may be safely overwritten. Other features and aspects may be realized, depending upon the particular application.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: November 3, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Theresa M. Brown, Anthony J. Ciaravella, Nicolas M. Clayton, Michael S. Gagner, Theodore T. Harris, Jr., Mark L. Lipets, Gregory E. McBride, Carol S. Mellgren, Matthew J. Ward
  • Publication number: 20190339874
    Abstract: In one embodiment, a local copy target is also a local primary of an incomplete consistency group of an ongoing asynchronous mirror relationship. Completion of the consistency group is facilitated notwithstanding that the local copy operation was initiated after the consistency group was initiated. In one aspect, asynchronous data mirroring logic, prior to the overwriting of existing data of the target, reads the existing data of the target for purposes of mirroring the read data to a remote secondary target of the consistency group. As a result, existing data of the local copy target which is also a local primary source of the consistency group, may be safely overwritten. Other features and aspects may be realized, depending upon the particular application.
    Type: Application
    Filed: July 12, 2019
    Publication date: November 7, 2019
    Inventors: Theresa M. Brown, Anthony J. Ciaravella, Nicolas M. Clayton, Michael S. Gagner, Theodore T. Harris, Jr., Mark L. Lipets, Gregory E. McBride, Carol S. Mellgren, Matthew J. Ward
  • Patent number: 10416921
    Abstract: In one embodiment, a local copy target is also a local primary of an incomplete consistency group of an ongoing asynchronous mirror relationship. Completion of the consistency group is facilitated notwithstanding that the local copy operation was initiated after the consistency group was initiated. In one aspect, asynchronous data mirroring logic, prior to the overwriting of existing data of the target, reads the existing data of the target for purposes of mirroring the read data to a remote secondary target of the consistency group. As a result, existing data of the local copy target which is also a local primary source of the consistency group, may be safely overwritten. Other features and aspects may be realized, depending upon the particular application.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: September 17, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Theresa M. Brown, Anthony J. Ciaravella, Nicolas M. Clayton, Michael S. Gagner, Theodore T. Harris, Jr., Mark L. Lipets, Gregory E. McBride, Carol S. Mellgren, Matthew J. Ward
  • Patent number: 10162563
    Abstract: In accordance with one embodiment, asynchronous local and remote generation of consistent first and second point-in-time snap copy volumes provides for generating in a primary system, a first point-in-time snap copy volume of a primary volume of the primary system, and generating in a secondary system, a second point-in-time snap copy volume utilizing a secondary volume in the secondary system. Synchronizing logic synchronizes the first and second point-in-time snap copy volumes to be consistent with each other as of a particular point-in-time notwithstanding an asynchronous mirror relationship between the primary volume of the primary system and the secondary volume of the secondary system. Other features and aspects may be realized, depending upon the particular application.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: December 25, 2018
    Assignee: International Business Machines Corporation
    Inventors: Theresa M. Brown, Anthony J. Ciaravella, Nicolas M. Clayton, Michael S. Gagner, Theodore T. Harris, Jr., Mark L. Lipets, Gregory E. McBride, Carol S. Mellgren, Matthew J. Ward
  • Publication number: 20180284988
    Abstract: In one embodiment, a local copy target is also a local primary of an incomplete consistency group of an ongoing asynchronous mirror relationship. Completion of the consistency group is facilitated notwithstanding that the local copy operation was initiated after the consistency group was initiated. In one aspect, asynchronous data mirroring logic, prior to the overwriting of existing data of the target, reads the existing data of the target for purposes of mirroring the read data to a remote secondary target of the consistency group. As a result, existing data of the local copy target which is also a local primary source of the consistency group, may be safely overwritten. Other features and aspects may be realized, depending upon the particular application.
    Type: Application
    Filed: March 31, 2017
    Publication date: October 4, 2018
    Inventors: Theresa M. Brown, Anthony J. Ciaravella, Nicolas M. Clayton, Michael S. Gagner, Theodore T. Harris, JR., Mark L. Lipets, Gregory E. McBride, Carol S. Mellgren, Matthew J. Ward
  • Publication number: 20180157421
    Abstract: In accordance with one embodiment, asynchronous local and remote generation of consistent first and second point-in-time snap copy volumes provides for generating in a primary system, a first point-in-time snap copy volume of a primary volume of the primary system, and generating in a secondary system, a second point-in-time snap copy volume utilizing a secondary volume in the secondary system. Synchronizing logic synchronizes the first and second point-in-time snap copy volumes to be consistent with each other as of a particular point-in-time notwithstanding an asynchronous mirror relationship between the primary volume of the primary system and the secondary volume of the secondary system. Other features and aspects may be realized, depending upon the particular application.
    Type: Application
    Filed: December 2, 2016
    Publication date: June 7, 2018
    Inventors: Theresa M. Brown, Anthony J. Ciaravella, Nicolas M. Clayton, Michael S. Gagner, Theodore T. Harris, JR., Mark L. Lipets, Gregory E. McBride, Carol S. Mellgren, Matthew J. Ward