DR Fundamentals
Core concepts in disaster recovery.
- Recovery Point Objective (RPO): Maximum acceptable data loss
- Recovery Time Objective (RTO): Maximum acceptable downtime
- Disaster scenarios: What could go wrong
- Recovery procedures: How to restore
- Testing and validation: Proving it works
Disaster Scenarios
Types of disasters to plan for.
- Infrastructure failure: Server, network, storage
- Data center outage: Regional or provider issues
- Security incidents: Ransomware, breaches
- Human error: Accidental deletion, misconfiguration
- Natural disasters: Affecting physical infrastructure
Backup Strategy
Ensuring you can restore your website.
Failover Architecture
Systems that switch to backup automatically.
- Hot standby: Always-running backup ready to serve
- Warm standby: Backup ready but not serving
- Cold standby: Infrastructure ready, data restored on demand
- Automatic failover: No manual intervention required
- DNS-based failover: Route traffic to healthy systems
Testing Disaster Recovery
Validating your DR plan actually works.
- Tabletop exercises: Walk through scenarios
- Partial tests: Recover components
- Full simulation: Complete recovery test
- Chaos engineering: Intentional failure injection
- Regular schedule: Annual or quarterly testing
DR Documentation
What to document for disaster recovery.
Conclusion
Disaster recovery planning protects your website from catastrophic loss. By understanding risks, implementing proper backup and failover, and testing regularly, you ensure recovery when it matters most. Contact mysitebroker for DR planning and implementation.
Key Takeaways
- 1RPO and RTO define your recovery requirements
- 2Plan for multiple disaster scenarios
- 3Backup strategy must match recovery needs
- 4Failover architecture reduces recovery time
- 5Testing validates DR plans actually work