Which metric indicates the average time required to repair an asset following a disaster?

The metric that indicates the average time required to repair an asset following a disaster is Mean Time to Repair (MTTR). MTTR is a key performance indicator used in maintenance and support contexts that measures the average time taken to troubleshoot and repair failed equipment or systems. This metric is crucial for organizations to understand how quickly they can respond to incidents and restore normal operations after a disruption occurs.

By focusing on MTTR, organizations can assess and improve their incident response processes, helping to minimize downtime and enhance overall reliability. A lower MTTR reflects an efficient repair process, which can significantly impact service availability and overall operational resilience.

Recovery Time Objectives (RTO) refers to the maximum acceptable length of time that a system can be down after a disaster—this is different from MTTR, which measures the actual repair time. Service Level Agreements (SLA) are formal contracts that outline the expected level of service, including uptime guarantees or response times, but they do not specifically quantify repair time. Availability Rate (AR) refers to the proportion of time a service is functional and operational, rather than focusing specifically on repair duration.