Mean Time to Acknowledge (MTTA): Your First Response Clock
MTTA measures the time from an alert firing to a human acknowledging it. It's about reaction speed, not fix time. On-call teams use this to ensure issues are seen quickly, minimizing downtime.
Mean Time to Acknowledge (MTTA) is the clock starting when an alert fires and stopping when a human says "I'm on it." It purely measures team responsiveness, not fix ability. SRE and ops teams use it to track on-call engagement, the first step to minimizing downtime and customer impact. The footgun is confusing MTTA with MTTR (time to resolve). A low MTTA proves your alerting works, but a high MTTA guarantees a slow overall resolution.
Read the original → pagerduty.com
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