SYSTEM-ADMINISTRATION5 MIN READ
Ask for Evidence Without Blame
Use blameless postmortem principles to gather accurate operational evidence after an incident.
Mika MK Engineer who deployed 1 Timeline 2 Signals 3 Guardrail Review moment 2 min The outage is over. The team needs the timeline behind a failed deploy without turning the review into a trial. A defensive timeline is usually an incomplete timeline. Evidence before judgment Ask what was visible and reasonable at the time, then improve the system around that reality. Postmortems improve systems when people can describe reality accurately. Turn 1 Mika says: "I deployed at 9:12, then errors started. I should have known."
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