This IBM® Redpaper publication helps you design and implement a 4-site replication solution for IBM DS8000® environments. IBM Copy Services Manager is used to orchestrate the data replication and failover and failback mechanisms between the different sites.

The IBM DS8000 Copy Services functions are the foundation of this 4-site replication solution. The four sites consist of two pairs of sites. Within each pair, the two sites are at metro distance, while the pairs connect at long distance over asynchronous links.

The solution is based on a Multi-Target PPRC topology that consists of a Metro Mirror replication to the secondary site in the local region and a Global Mirror replication to the third site in the remote region. The fourth site is set up as a cascaded Global Copy, which is an asynchronous copy.

This paper was produced by a team of specialists from around the world.

Thomas Luther is an IBM Professional Certified IT specialist in IBM Germany. He has many years of experience in Open Systems platforms, SAN networks, and high-end storage systems. He formerly worked for a large bank in Germany where he was responsible for the architecture and implementation of the disk storage environment. He joined IBM in 2003, where he worked for Strategic Outsourcing. Since July 2004, he has worked for IBM System Storage™ Europe. His main focus is copy services, disaster recovery, and storage architectures for IBM DS8000 in open systems environments.

Peter Klee is a consulting IT Specialist in Germany and holds a degree in electrical engineering. He works for the IBM EMEA Storage Competence Center for 21 years. His areas of expertise include storage copy services and replication management software, IBM z/OS® IBM HyperSwap® implementations and z/OS data migrations with IBM TDMF. He also published various White Papers for IBM Tivoli® Productivity Center for Replication and Copy Services Manager.

Alex Warmuth is a Consulting IT Specialist in IBM’s EMEA Storage Competence Center. Working in technical sales support, he designs and promotes new and complex storage solutions, drives the introduction of new products, and provides advice to customers, Business Partners, and sales. His main areas of expertise are high-end storage solutions and business resilience for IBM z Systems® and Linux. He joined IBM in 1993 and is working in storage technical sales support since 2001. Alexander holds a degree in Electrical Engineering from the University of Erlangen, Germany.

Thanks to Randy Blea of IBM for his contributions to this project.

This project was managed by Bert Dufrasne, IBM TCS/WCEC

 

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