公开(公告)号：US20190163776A1

公开(公告)日：2019-05-30

申请号：US15827296

申请日：2017-11-30

Applicant: International Business Machines Corporation

Inventor： Serge Bourbonnais ,  Paul Cadarette ,  David A. Clitherow ,  Michael G. Fitzpatrick ,  Pamela McLean ,  David Petersen ,  John G. Thompson ,  Gregory W. Vance

IPC: G06F17/30

Abstract: A method includes reading, by a capture engine, log data. The log data can be synchronously hardware-replicated. The log data reflects that an update was started for a database of a first site. The capture engine corresponds to a capture engine of a second site. The method also includes identifying, by the capture engine, the update. The method also includes determining whether the update was committed to the database of the first site. The method also includes replicating, by an apply engine, the update to a database of the second site based on the determining. The update is replicated to the database of the second site based on a determination that the update was committed to the database of the first site. The committed update corresponds to a consistent replication of updates across two or more databases that reside in multiple database management systems.

公开(公告)号：US10970266B2

公开(公告)日：2021-04-06

申请号：US15827296

申请日：2017-11-30

Applicant: International Business Machines Corporation

Inventor： Serge Bourbonnais ,  Paul Cadarette ,  David A. Clitherow ,  Michael G. Fitzpatrick ,  Pamela McLean ,  David Petersen ,  John G. Thompson ,  Gregory W. Vance

IPC: G06F16/00 ,  G06F16/23 ,  G06F16/27

Abstract: A method includes reading, by a capture engine, log data. The log data can be synchronously hardware-replicated. The log data reflects that an update was started for a database of a first site. The capture engine corresponds to a capture engine of a second site. The method also includes identifying, by the capture engine, the update. The method also includes determining whether the update was committed to the database of the first site. The method also includes replicating, by an apply engine, the update to a database of the second site based on the determining. The update is replicated to the database of the second site based on a determination that the update was committed to the database of the first site. The committed update corresponds to a consistent replication of updates across two or more databases that reside in multiple database management systems.

公开(公告)号：US20200026786A1

公开(公告)日：2020-01-23

申请号：US16038682

申请日：2018-07-18

Applicant: International Business Machines Corporation

Inventor： Paul M. Cadarette ,  David B. Petersen ,  Serge Bourbonnais ,  Michael G. Fitzpatrick ,  Pamela L. McLean ,  John G. Thompson ,  Gregory W. Vance ,  David A. Clitherow

IPC: G06F17/30

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.