RTO means Recovery Time Objective. It is essentially the maximum amount of time a business can afford to elapse before recovery is achieved. RPO means Recovery Point Objective. It is essentially the state or point a business believes it needs to recover to in order to carry on business in the event of an incident that threatens its continuity. In relation to IT disaster recovery, the RPO should define what systems are critical to recover and what state they should be in, and the RTO defines how quickly those systems need to be available for the business to survive. These two terms will therefore define what sort of disaster recovery provision a business needs. The Plan B DR service will deliver an RPO for an individual computer of a fully working system, with data up to 24 hours old, accessible over a secure Internet connection. It will deliver an RTO for the systems themselves of 30 minutes.