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IBM GDPS Active/Active Overview and Planning by Lydia Parziale, Juliet Candee, Jiong Fan, Paulo Shimizu, Sidney Varoni Jr, Shu Xie

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Architectural overview
The design of the GDPS Active/Active solution is a paradigm shift from a failover model to a near continuous availability model. The other GDPS solutions are built upon storage-based replication. Because data on storage is not readily accessible, in general it takes a longer time to recover from an outage. GDPS Active/Active solution is an asynchronous software replication-based solution to provide business continuity with unlimited distance. The solution is designed for mission critical workloads that have stringent recovery ...

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