Patents by Inventor John H. Hogan

John H. Hogan 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).

  • Non-disruptive encoding of source data in a source data set migrated to a target data set
    Patent number: 10705992
    Abstract: Provided are a computer program product, system, and method for non-disruptive encoding of source data in a source data set migrated to a target data set. The source data in the source data set is migrated to a target data set by encoding the source data to produce encoded source data to copy to a target data set. In response to receiving write data for the source data set, the write data is encoded to produce encoded write data to copy to the target data set. Input/Output (“I/O”) requests to the source data set are redirected to the target data set having encoded data for the source data set.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: July 7, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: John H. Hogan, Richard G. Pace, Harry M. Yudenfriend
  • NON-DISRUPTIVE ENCODING OF SOURCE DATA IN A SOURCE DATA SET MIGRATED TO A TARGET DATA SET
    Publication number: 20190179782
    Abstract: Provided are a computer program product, system, and method for non-disruptive encoding of source data in a source data set migrated to a target data set. The source data in the source data set is migrated to a target data set by encoding the source data to produce encoded source data to copy to a target data set. In response to receiving write data for the source data set, the write data is encoded to produce encoded write data to copy to the target data set. Input/Output (“I/O”) requests to the source data set are redirected to the target data set having encoded data for the source data set.
    Type: Application
    Filed: December 11, 2017
    Publication date: June 13, 2019
    Inventors: John H. Hogan, Richard G. Pace, Harry M. Yudenfriend
  • Reducing new extent failures on target device during non-disruptive logical data set migration
    Patent number: 9696930
    Abstract: A method, according to one embodiment, includes selecting a source data set for migration; determining a predicted future total space allocation based on characteristics of the source data set; determining whether a target volume is capable of accommodating the predicted future total space allocation; migrating the source data set to the target volume in response to determining that the target volume is capable of accommodating the predicted future total space allocation; and requesting an adjustment to an amount of reserved free space on the target volume based on the predicted future total space allocation.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: July 4, 2017
    Assignee: International Business Machines Corporation
    Inventors: Joachim R. Appel, Daniel K. Billing, John H. Hogan, Stephen A. Maxwell, Richard G. Pace
  • REDUCING NEW EXTENT FAILURES ON TARGET DEVICE DURING NON-DISRUPTIVE LOGICAL DATA SET MIGRATION
    Publication number: 20160364165
    Abstract: A method, according to one embodiment, includes selecting a source data set for migration; determining a predicted future total space allocation based on characteristics of the source data set; determining whether a target volume is capable of accommodating the predicted future total space allocation; migrating the source data set to the target volume in response to determining that the target volume is capable of accommodating the predicted future total space allocation; and requesting an adjustment to an amount of reserved free space on the target volume based on the predicted future total space allocation.
    Type: Application
    Filed: June 10, 2015
    Publication date: December 15, 2016
    Inventors: Joachim R. Appel, Daniel K. Billing, John H. Hogan, Stephen A. Maxwell, Richard G. Pace