Multi-Cloud Disaster Recovery Runbook Handbook
Operational standards for failover, backup restoration, recovery coordination, and validation across AWS, Azure, and GCP for systems that must recover predictably under pressure.
Objectives
- Reduce ambiguity during major service disruption.
- Standardize recovery language across engineering and leadership.
- Turn recovery from theory into rehearsal with tested runbooks.
- Separate recovery, validation, and failback into explicit stages.
Recovery Flow
RTO and RPO Standards
RTO defines the maximum acceptable recovery duration. RPO defines the maximum acceptable data loss window. These values must be defined per application tier and backed by actual recovery capability, not optimistic assumptions.
Recovery Patterns
Runbook Requirements
- Every production system has declared RTO and RPO.
- Recovery owner and incident commander are named.
- Backup location and restore steps are documented.
- Validation steps cover application, data, and external integrations.
- Communication templates exist before the incident starts.
- Runbook test date and evidence are recorded.
Data & Replication Standards
Replication lag must be measured, not assumed. Backups are only considered valid after a successful restore test. Failback must be treated as its own controlled event with explicit validation and rollback criteria.
Communications and Escalation
Major incidents require parallel technical recovery and stakeholder communication. Define who communicates to leadership, who communicates to customers, and who owns engineering coordination so the recovery team is not constantly interrupted.
Cloud-Specific Mappings
| Capability | AWS | Azure | GCP |
|---|---|---|---|
| Global routing / failover | Route 53 / Global Accelerator | Azure Front Door / Traffic Manager | Global Cloud Load Balancing / Cloud DNS |
| VM backup | AWS Backup | Azure Backup | Backup and DR Service |
| Database replication | Aurora Global Database / DynamoDB Global Tables | Cosmos DB / Azure SQL geo-replication | Cloud Spanner / Cloud SQL replicas |
| Runbook automation | Systems Manager Automation / Step Functions | Automation / Logic Apps / Durable Functions | Workflows / Cloud Functions |
| Observability | CloudWatch / X-Ray | Azure Monitor / Application Insights | Cloud Monitoring / Cloud Logging |
Drill Checklist
- Recovery roles are current.
- Failover triggers and decision rules are understood.
- Restore procedures have been tested recently.
- Runbooks match the live architecture.
- Failback is rehearsed, not improvised.