The Rennes-Cesson (35) datacenter was commissioned in July 2014. Located at TDF's Cesson-Sévigné site, it hosts customers' mission-critical IT equipment in shared or private rooms within a reliable and highly secure environment. It comprises nine rooms and 140 racks, and boasts high energy capacity, secure infrastructures and optimum service quality. To date, TDF has four datacenters throughout France (Lille, Marseille, Bordeaux, Rennes) and is installing local datacenters at the foot of its sites, to optimize data processing and storage performance. Since 2013, TDF's datacenters have been responding to growing data processing and storage needs, particularly with the rise of Edge Computing.