Whenever we design DR solution, the main point comes what is RTO and RPO. Lot of time we confused that what is the difference between them
Recovery Point Objective (RPO) describes the interval of time that might pass during a disruption before the quantity of data lost during that period exceeds the Business Continuity Plan’s maximum allowable threshold or “tolerance.” Example: If the last available good copy of data upon an outage is from 18 hours ago, and the RPO for this business is 20 hours then we are still within the parameters of the Business Continuity Plan’s RPO. In other words it the answers the question – “Up to what point in time could the Business Process’s recovery proceed tolerably given the volume of data lost during that interval? “
Recovery Time Objectives (RTO): The Recovery Time Objective (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 break in continuity. In other words the RTO is the answer to the question: “How much time did you take to recovery after notification of business process disruption.
Make sure you determine the Recovery Time Objective (RTO) and Recovery Point Objective (RPO) for each workload, so when you’re creating your business continuity and disaster recovery plans, your backup and recovery policies are aligned with your business priorities.