Some of your business processes are not mission critical but may have a Recovery Time Objective (RTO) greater than zero. In these cases you may opt for a warm site backup solution. Warm site solutions require that dedicated hardware be located at a second Data Centre. This hardware can be a mirror image or a subset of the production environment depending on your business requirements. There is no data residing at the warm site. The servers and storage systems will always be running and ready to restore data and applications. When a disaster is declared data tapes are recalled and delivered to the warm site where they are restored.