Data Center Journal, 10/12/2018
There was a time when the enterprise was on its own if it wanted to build infrastructure for disaster recovery (DR). When it came to housing critical data and applications, the local data center was the only viable option. But maintaining near-perfect reliability with this approach came at a high price. In most cases, it required building an entirely new data center from scratch, establishing the architecture to continuously move required data and then ensuring a smooth operational transition should a calamity befall the primary site.
In today’s world of tight budgets and razor-thin margins, however, this approach is no longer an option. Fortunately, increased cloud and colocation adoption is stepping in to fill the void through all-cloud or hybrid DR infrastructure. Still, enterprise executives should be aware that moving from a secondary data center to a cloud/hybrid model is no walk in the park. The process can be highly complex, with many finite details to attend to—and errors can be substantial. For this reason, proper planning and testing is the main element in making sure the transition is as smooth as possible.
The first step, before any actual changes to the DR architecture, is to take stock of the entire IT environment that requires preservation in an emergency. The best way to do so is to identify which services and functions would be most harmed by extended downtime and then identify their basic resource needs and long-term strategic goals. Next, the enterprise must address several important considerations before, during and after the cloud transition.