Mean Time To Recovery
Mean Time To Recovery (MTTR) is a key performance indicator in IT operations and DevOps that measures the average time required to restore a system or service to normal operation after a failure or incident. It quantifies the efficiency of incident response, troubleshooting, and repair processes, helping organizations assess their reliability and resilience. MTTR is often used alongside other metrics like Mean Time Between Failures (MTBF) to provide a comprehensive view of system availability and maintainability.
Developers should learn and use MTTR to improve system reliability, reduce downtime, and enhance user satisfaction by optimizing incident management workflows. It is critical in DevOps and SRE (Site Reliability Engineering) practices for monitoring service-level objectives (SLOs) and driving continuous improvement in deployment and recovery processes. Specific use cases include post-incident reviews, capacity planning, and justifying investments in automation, monitoring tools, or redundant infrastructure to minimize recovery times.