Designing Active-Active and Disaster Recovery Data Centers

In the fist section of this webinar we'll try to figure out why we'd want to migrate application workload between data centers, and define a few useful terms like RTO, RPO, MTTR and MTTI.

There are four typical reasons why you'd want to migrate application servers between data centers: migration, disaster recovery or avoidance, and workload load balancing.

A number of factors limit our ability to deploy servers across multiple data centers: latency, bandwidth limitations, and data gravity.

Well-designed active-active applications used "swimlanes" - a concept where multiple copies of an application stack reside in different locations.

Instead of redesigning applications to make them work across multiple data centers, enterprise environments typically try to solve the challenges within the infrastructure, sometimes even moving running servers between data centers. This section describes most obvious drawbacks of that idea.

Time for a wrap-up. We'll discuss the right way of doing things, surviving infrastructure failures, and typical real-life designs.