From the article:“The goal for a data center is to maximize reliability and minimize dollars spent, all while maintaining future flexibility. To do this most efficiently, each system should be supported to its level of recommended reliability—but no more.” There’s also this graphic of the type of dual-active approach that Healthcare Design says is most effective for hospitals, stating that “this approach may provide more reliability to the end user at a smaller price tag. Using this concept, hospitals can also get some value out of old data centers, which can act as a second active backup site to support the most critical applications. This will allow a facility to operate if there is a major problem with the communications grid.”

Check out the full article here