MTTR

Mean Time to Repair

A performance metric that measures the average time it takes to detect, diagnose, fix, and restore a system or application after a failure. It provides a practical gauge of how quickly an organization can respond to and recover from technical issues, making it a critical indicator for operational efficiency and service reliability.

The formula for MTTR

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For example, if five outages resulted in a total downtime of 500 minutes in a month, the Mean Time To Resolution (MTTR) would be 100 minutes.

MTTR is particularly important in industries where uptime has a direct impact on revenue or safety, such as cloud services, manufacturing, and telecommunications. A lower Mean Time To Resolution (MTTR) generally leads to higher customer satisfaction and reduced business disruption.

However, interpreting MTTR requires context. Some organizations include full recovery time, including detection and testing, while others measure only the time spent actively fixing the issue. Clear internal definitions are crucial for maintaining consistency.

Reducing Mean Time To Resolution (MTTR) typically involves improving incident detection, automating alerts and responses, training teams, and refining communication workflows. Tools like observability platforms, integrated monitoring solutions, and incident management systems play a significant role in driving improvements.

It’s also worth noting that a healthy MTTR doesn’t just focus on speed but balances quick fixes with thorough, lasting resolutions to avoid recurring failures.