Disaster Recovery & Business Continuity

Welcome to our Disaster Recovery & Business Continuity section. This area provides comprehensive guidance on protecting our Epic on Azure infrastructure from disasters and ensuring business operations can continue during outages.

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Quick Navigation

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Recovery Objectives

📊 Key Metrics

• RTO (Recovery Time Objective): Maximum acceptable downtime
  • Critical Systems: 4 hours
  • Important Systems: 8 hours
  • Standard Systems: 24 hours
• RPO (Recovery Point Objective): Maximum acceptable data loss
  • Critical Data: 15 minutes
  • Important Data: 1 hour
  • Standard Data: 4 hours

🎯 Service Tiers

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Disaster Scenarios

🌪️ Natural Disasters

• Data center outages (fire, flood, earthquake)
• Regional Azure outages
• Network infrastructure failures
• Power grid failures

🛡️ Technology Disasters

• Hardware failures (servers, storage, network)
• Software failures and corruption
• Cyber attacks and ransomware
• Human error and configuration mistakes

🏢 Business Disasters

• Pandemic and workforce unavailability
• Vendor and supplier failures
• Regulatory and compliance issues
• Financial and operational disruptions

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Recovery Architecture

graph TB
    A[Primary Region - East US] --> B[Secondary Region - West US]
    A --> C[Backup Storage - Azure Blob]
    B --> D[Tertiary Region - Central US]

    subgraph "Primary Components"
        E[Epic Production]
        F[Database Cluster]
        G[Application Servers]
    end

    subgraph "DR Components"
        H[Epic DR Site]
        I[Database Replica]
        J[Standby Servers]
    end

    E --> H
    F --> I
    G --> J

    subgraph "Backup Strategy"
        K[Daily Full Backup]
        L[Hourly Incremental]
        M[Transaction Log Backup]
    end

    F --> K
    F --> L
    F --> M

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Recovery Procedures

Phase 1: Assessment & Activation

1. Incident Detection: Automated monitoring alerts
2. Impact Assessment: Determine scope and severity
3. DR Team Activation: Notify key personnel
4. Communication: Stakeholder notification

Phase 2: Failover & Recovery

1. Service Isolation: Isolate affected systems
2. Data Recovery: Restore from backups/replicas
3. System Activation: Bring up DR systems
4. Service Validation: Test critical functions

Phase 3: Operations & Monitoring

1. Service Monitoring: Continuous health checks
2. Performance Tuning: Optimize DR environment
3. User Communication: Status updates
4. Documentation: Record all actions

Phase 4: Restoration & Review

1. Primary Site Recovery: Rebuild/repair primary
2. Data Synchronization: Sync changes back
3. Failback Planning: Coordinate return to primary
4. Post-Incident Review: Lessons learned

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Backup Strategy

Database Backups

• Full Backups: Daily at 2 AM UTC
• Differential Backups: Every 6 hours
• Transaction Log Backups: Every 15 minutes
• Retention: 30 days local, 365 days archive

Application Backups

• Configuration Backups: Daily
• Code Repositories: Real-time replication
• Custom Applications: Weekly full backup
• Retention: 90 days standard

Infrastructure Backups

• VM Snapshots: Daily via Azure Backup
• Infrastructure as Code: Git repository
• Network Configurations: Weekly exports
• Retention: 30 days operational, 7 years compliance

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Testing & Validation

Testing Schedule

• Monthly: Component-level DR tests
• Quarterly: Application-level failover tests
• Semi-Annual: Full DR exercise
• Annual: Business continuity simulation

Test Types

1. Planned Tests: Scheduled maintenance windows
2. Surprise Tests: Unannounced exercises
3. Partial Tests: Single component validation
4. Full Tests: Complete environment failover

Success Criteria

• RTO/RPO objectives met
• All critical functions operational
• Data integrity verified
• Communication procedures effective

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Business Continuity Planning

Operational Continuity

• Remote work capabilities
• Alternative communication channels
• Vendor contingency plans
• Supply chain alternatives

Stakeholder Management

• Executive notification procedures
• Customer communication plans
• Vendor coordination protocols
• Regulatory reporting requirements

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Azure DR Tools & Services

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Contact Information

For DR activation or business continuity concerns:

• Emergency Response: Contact your immediate supervisor
• After Hours: Use established on-call procedures
• Azure Support: Contact through Azure Portal support

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Next Steps

This disaster recovery documentation is in active development. Key areas being planned:

1. Detailed Recovery Procedures: Step-by-step recovery guides
2. Testing Schedules: Regular DR testing calendar
3. Tool Integration: Automated failover procedures
4. Training Materials: DR team training resources