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Resolving Issues of Currency and Optimization of the Process of Replication/Migration

IP.com Disclosure Number: IPCOM000019871D
Original Publication Date: 2003-Oct-03
Included in the Prior Art Database: 2003-Oct-03

Publishing Venue

IBM

Abstract

Replication helps provide both disaster recovery and higher availability. In the Content Managerment, replication is defined as making an asynchronous peer copy of a resource item's referenced object on a different resource manager/collection tuple. The Library Server tracks the state of each replica during the process of Replication/Migration. Replication/Migration proceeds currently with other update and modification operations. Care must be taken on issues of currency to avoid incorrectly overwriting and corrupting the most recent data with those that are stale. The current invention involves a new approach for replication/migration that guarantees the correct resolution of the issue of currency and ensures error-free replication and migration. This approach also significantly reduces the complexity of the logic for determining the location of the Replication/Migration path, optimizes this process, and offers a clear self-illustration of its workings.