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System Design & Performance > Seeing it, and paying for itOn call at three in the morning
Phase 06Seeing it, and paying for it321 of 434

On call at three in the morning

A simulated incident against a system you designed. Alert fires, you have logs and metrics, and you narrate what you check and in what order.

Build50 minAI adversary

Build this in your own editor

This one runs on your machine rather than in the browser workbench. Work to the outcomes below, then come back and mark it complete.

You should now be able to

  • Triage an incident from a symptom to a hypothesis
  • Mitigate before diagnosing when that is the right call
  • Write an incident note somebody else could act on
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