MTO is time for which organization can tolerate to have outage. This concept is related to disaster recovery. Any incident which occurs for less than this period cannot be considered as Disaster. If incident exceeds MTO, Management invokes DR plan so that organization can have business continuity with minimal impact on business
MTO (Maximum Tolerable Outage) is the maximum amount of time that a process or facility can be unavailable before significant disruption and/or financial loss occurs to an organisation. RTO (Recovery Time Objective) is the organisation’s goal for getting back to a normal situation in the event of an outage. In DR planning, RTO is normally less than MTO – otherwise, disasters could officially occur even though objectives were being met.