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compliance/continuity/disaster-recovery/SKILL.md

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+---
+name: disaster-recovery
+description: Implement disaster recovery strategies and runbooks. Configure RPO/RTO targets and failover procedures. Use when planning for business continuity.
+license: MIT
+metadata:
+  author: devops-skills
+  version: "1.0"
+---
+
+# Disaster Recovery
+
+Implement disaster recovery strategies and procedures.
+
+## DR Metrics
+
+```yaml
+recovery_metrics:
+  RTO: Recovery Time Objective
+    - Maximum acceptable downtime
+    - How long to restore service
+    
+  RPO: Recovery Point Objective
+    - Maximum acceptable data loss
+    - How much data can be lost
+```
+
+## DR Strategies
+
+| Strategy | RTO | RPO | Cost |
+|----------|-----|-----|------|
+| Backup & Restore | Hours | Hours | $ |
+| Pilot Light | Minutes-Hours | Minutes | $$ |
+| Warm Standby | Minutes | Seconds | $$$ |
+| Multi-Site Active | Near-zero | Near-zero | $$$$ |
+
+## AWS Multi-Region
+
+```bash
+# Cross-region RDS replica
+aws rds create-db-instance-read-replica \
+  --db-instance-identifier dr-replica \
+  --source-db-instance-identifier prod-db \
+  --source-region us-east-1 \
+  --region us-west-2
+
+# S3 cross-region replication
+aws s3api put-bucket-replication \
+  --bucket source-bucket \
+  --replication-configuration file://replication.json
+```
+
+## DR Testing
+
+```yaml
+dr_test_schedule:
+  tabletop: Quarterly
+  component_failover: Monthly
+  full_failover: Annually
+  
+test_checklist:
+  - [ ] Verify backup integrity
+  - [ ] Test failover procedures
+  - [ ] Validate data consistency
+  - [ ] Measure actual RTO/RPO
+  - [ ] Document lessons learned
+```
+
+## Best Practices
+
+- Regular DR testing
+- Automate failover where possible
+- Document all procedures
+- Update runbooks after tests