F or many organisations , it ’ s just not feasible to fund , build and staff a state-of-the-art data centre facility , complete with heating , cooling , power and network connectivity . For one , a data centre needs to be as flexible as the demand for the services which run upon it , making it difficult to forecast how much physical space should be set aside for IT footprint . On top of the cost of building or expanding the physical space required for a data centre , organisations must dedicate more capital outlay to ensuring the resilience of IT infrastructure through backups , disaster recovery , security and Uninterruptable Power Supplies ( UPS ), as well as protection from natural disasters , fire or flooding .