Valerie is responding to a full data center outage, and after referencing the documentation for the systems in the datacenter she brings the network back up, then focuses on the storage area network (SAN), followed by the database servers. Why does her organization list systems for her to bring back online in a particular series?

In a complex system, restoration order is a critical factor due to system dependencies. Restoration orders also help ensure that appropriate security controls are established before systems are brought online. A well-designed data center should be capable of accommodating systems coming online without failure. However, if there is a second outage due to failed systems, Valerie must determine the root cause of the outage before proceeding with restoration, as doing so otherwise could be dangerous or problematic. Lastly, fire suppression systems should only activate if there is an actual fire or if fire precursors such as smoke are detected, not just for an increase in heat load.