Mark should modify RTO part of the plan while updating his DR plan with this new metric.
The length of time that must pass after a disaster for a business process to be restored in order to avoid the unacceptably negative effects of a disruption in business continuity is the traditional definition of RTO. The recovery time objective (RTO) is the maximum amount of time that an application or service can be unavailable following a disaster without seriously harming the company's operations.
The recovery time objective (RTO) is the maximum amount of time from the last data restoration point, whereas the recovery point objective (RPO) is the goal amount of downtime in the event of an IT outage. An RTO's main objective is to estimate how long something will take.
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