Despite years of predictions about applications and data migrating to the public cloud, data centers remain the indispensable core of any digital infrastructure. Enterprise Management Associates (EMA) defines a data center as a site where a technology organization owns and operates the compute, storage, and network infrastructure necessary for hosting digital applications and services. A technology organization might have direct control of the data center site (e.g., on-premises data center, server rooms, a telco central office), or it might pay for rack space in a hosted environment (e.g., a colocation data center).