MTTR and MTBF

Mean time to recovery and mean time between failures. Availability depends on both, and in practice it is usually far cheaper to shorten recovery than to prevent every failure.

Where it shows up in real systems

  • Alerting and on-call

    Alerts need metrics to watch. Together they cut the time to detect and repair a failure from close to an hour to a few minutes.

    In production: PagerDuty, Opsgenie, Grafana OnCall, Prometheus Alertmanager

See it break, then fix it

Build an architecture, send it a day of traffic and outages, and learn why it holds or fails. Free to start.

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