Lam Phu Si

“The RTO is the duration of time and a service level within which a business process must be restored after a disaster, in order to avoid unacceptable consequences associated with a lack of business continuity. The RPO describes the amount of data loss a business is willing to accept, measured in time. It is the point in time to which data must be recovered considering some "acceptable loss" in a disaster situation.”
― Sjaak Laan, IT Infrastructure Architecture: Infrastructure Building Blocks and Concepts