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ITSM
MTTR
Quick Definition
Mean Time to Repair — the average time taken to restore a service or component after a failure, measured from detection to resolution.
Detailed Explanation
MTTR is a key availability metric. A lower MTTR indicates faster incident resolution and less downtime. It's calculated by dividing total repair time by the number of repairs in a given period.
Reducing MTTR requires investment in monitoring (faster detection), knowledge management (known solutions), automation (automated remediation), and skilled support teams.
Related metrics include MTTA (Mean Time to Acknowledge), MTTD (Mean Time to Detect), and MTBF (Mean Time Between Failures). Together, these provide a complete picture of service reliability.
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Relevant Frameworks
ITIL