Incident Review
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4 posts
Testing the Assumption Nobody Tests
AWS FIS can fail a zone and only approximate losing the control plane. How to run the game day, what to measure, and an honest scorecard for the series.
The Fix Shares Fate With the Outage
Lambda 2023, the DynamoDB DNS event, Azure's February control-plane failure: why recovery paths die with the incident, plus a lab measuring static stability.
Two Zones, Eighteen Hours, One Cause
Drone strikes put AWS's me-central-1 region into months of recovery and its DR advice was: restore into Europe. Plus a lab mapping AZ names to real IDs.
AZ Isolation Held. Your Architecture Didn't.
A cooling failure killed racks in one us-east-1 zone and a quorum died with them. What the blast radius promise covers, plus a read-only detector for it.