How to interpret the checklist

Completion does not prove high availability. The value comes from the evidence behind each answer: diagrams, provider confirmations, test records, capacity measurements and recovery results.

Mark an item complete only when the relevant owner can show how the requirement is met.

Common false redundancy

  • Two circuits in one conduit
  • Two servers using one storage array
  • Two cloud zones with one regional dependency
  • Two administrators using one identity account
  • Replicated data without a historical backup
  • A standby system that has never carried production load