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Proving recovery at Pellmore Building Society on the failover depth board: eight rows, one per chapter, show the 41 services in disaster recovery scope moving from untested and documented towards tabletop, component and full site tests. Alongside, the core ledger Quillon took 9 hours 41 minutes to recover in incident INC-2026-0107 against a 2-hour target, but recovered in 1 hour 54 minutes in full site test FT-2026-09 with failback measured, and was restored clean from immutable copies inside the isolated Greyfriars environment.
CY-EXPERT-080Expert Level · Disaster Recovery

Failover Testing Scenarios

An expert-level resilience course on designing failover tests that prove recovery genuinely works, rather than tests designed to pass. Work down the Failover Depth Board - eight rows, one per chapter: what a failover test must prove and how a plan, a capability and evidence differ; RTO and RPO as claims measured from failure to a real user journey; test depth chosen by criticality; scenarios aimed at the assumptions nobody is sure of; the dependency map and the upstream service nobody listed; abort conditions, blast radius, business sign-off and the failback everybody skips; clean restore into an isolated recovery environment when the data cannot be trusted; and honest evidence for the board and regulator with a calendar that rotates scenarios.

18 hours8 chapters32 lessons225 activities8 labs

What you'll learn

  • State what a failover test must prove, and report recovery plans, recovery capabilities and recovery evidence separately so that none stands in for another.
  • Define recovery clocks from failure to a named user journey, measure data loss by lag distribution and reconciliation, and derive RTO and RPO targets from impact tolerances.
  • Choose between documentation review, tabletop, component and full site depth by what each can reach, set depth floors by tier, and apply inherited criticality to shared platforms.
  • Build an assumption register scored for confidence and consequence, and design scenarios aimed at identity, DNS, licences, certificates, capacity and key-person knowledge in the recovery site.

Price:৳12,000
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