1. System Recovery Time Objective (RTO) refers to the period within which systems and applications must be recovered after a disruption has occurred to carry out the recovery of business functions.
Notes (1): The RTO is comprised of the following components: Starting from the point of disaster, the time before a disaster is declared, the time to perform tasks (as documented in the BC or DR plan) to the point of business resumption whereby the data which was lost, up to the point of disaster, is restored. See the complete diagram of these three concepts shown below.
Notes (2): System Recovery Time Objective (RTO) refers to the maximum acceptable length of time that can elapse before an IT application is returned. It should not exceed the RTO of the Business Function attached.
How long does the IT team or vendor "promise" to bring your system up once it is disrupted? Is it stated in their service level agreement (SLA)?
Within what period of time must the system be recovered after the disruption?