The most critical component in any mission-critical data center isn’t the capacity of data servers or the types of UPS batteries; it’s the life-safety measures. Smoke, not the flame itself, is the greatest threat to safe evacuation and survival during a fire event, so fire-suppression systems, means of egress, fire containment and fire-alarm systems are by far the most important ways to decrease the chance of injury or loss of life from a burning building.