Your digital business ecosystem consists of customers, partners, suppliers, and employees. Each expects your services to be available 24x365 in a seamless fashion. But running an always-on, always-available enterprise can quickly become very complex and very expensive. This report explores three steps that infrastructure and operations (I&O) professionals can take to support the always-on, always-available digital enterprise, including calculating the cost of downtime, measuring availability effectively, and matching business needs to the appropriate technologies.This is an update of a previously published report; Forrester reviews and updates it periodically for continued relevance and accuracy.