International Business Machines Corporation
Data synchronization in high availability storage environments

Abstract:

A method for resynchronizing data repositories in a high availability storage environment includes maintaining, in a first gateway server, a first journal that records operations that are performed for a first set of objects. The method further maintains, in a second gateway server, a second journal that records operations that are performed for a second set of objects. The method communicates, from the first gateway server to the second gateway server, any operations that are performed by the first gateway server for objects in the second set, so that these operations may be recorded in the second journal. The method further communicates, from the second gateway server to the first gateway server, any operations that are performed by the second gateway server for objects in the first set, so that these operations may be recorded in the first journal. A corresponding system and computer program product are also disclosed.