It Disaster Recovery Runbook Template

IT Disaster Recovery Runbook Template

1. Document Control & Revision History

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2. Executive Summary & Scope

Executive Summary

This document defines the systematic protocol for restoring critical IT infrastructure, data assets, and business services following a declared catastrophic failure. This runbook serves as the primary technical directive to minimize Recovery Time Objectives (RTO) and Recovery Point Objectives (RPO) in alignment with institutional risk appetite.

Scope

• Operational Boundaries: Applies to all on-premises data centers, cloud-native environments (AWS/Azure/GCP), and hybrid network topologies identified in the Business Impact Analysis (BIA).
• Regulatory Alignment: Compliance mandated under NIST SP 800-34, ISO/IEC 27031, and applicable regional data protection frameworks (GDPR/CCPA/HIPAA).

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3. Prerequisites & Tool Requirements

• Access Protocols: Validated multi-factor authentication (MFA) tokens for Global Admin/Root cloud consoles.
• Physical Infrastructure: Verified out-of-band management access (iDRAC/ILO/KVM) and console cables.
• Credential Management: Encrypted offline vault access (e.g., Hardware Security Modules or secure paper-based break-glass keys).
• Communication: Satellite or redundant cellular communication hardware for incident command post operations.
• Software/Tooling: Pre-installed disaster recovery orchestration suites (e.g., Zerto, Veeam, or AWS Elastic Disaster Recovery).

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4. Roles & Responsibilities (RACI Matrix)

• R: Responsible (Does the work)
• A: Accountable (Final authority)
• C: Consulted (Subject Matter Experts)
• I: Informed (Receive updates)

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5. Step-by-Step Operational Procedure

Phase 1: Assessment & Declaration

• Verify failure event via automated monitoring triggers.
• Convene Disaster Recovery Team (DRT) to assess BIA threshold triggers.
• Declare formal disaster status with Executive Leadership.

Phase 2: Isolation & Containment

• Isolate affected network segments to prevent lateral movement (if incident is cyber-related).
• Divert ingress traffic via DNS/Global Load Balancer failover.
• Disable automated sync processes to prevent corruption propagation.

Phase 3: Restoration Execution

• Initiate primary site isolation or teardown.
• Restore Infrastructure-as-Code (IaC) foundations (Terraform/CloudFormation).
• Execute database mounting and volume snapshot restoration.
• Validate application dependencies and middleware connectivity.

Phase 4: Validation & Handoff

• Conduct smoke testing of critical path services.
• Review logs for integrity anomalies.
• Formally notify stakeholders of service availability.

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6. Quality Assurance & Verification Criteria

• Data Integrity Benchmark: Checksum validation of production databases against pre-disaster snapshots must result in a 100% match.
• Performance Threshold: Application latency must not exceed +15% of the standard operational baseline.
• Security Posture: All restored endpoints must pass an automated vulnerability scan before being reconnected to the production VLAN.
• Verification Audit: The Incident Commander must sign off on the Post-Incident Review (PIR) report within 72 hours of recovery completion.

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7. Practical Troubleshooting Scenarios

Scenario A: Corruption of Offsite Backup Repository

• Immediate Protocol: Halt primary site recovery. Pivot to immutable "Air-Gapped" tertiary storage. Verify the last known-good synchronization point prior to the corruption timestamp. Use cryptographic hashing to validate the tertiary snapshot before mounting.

Scenario B: IaC Deployment Failure (Orchestration Error)

• Immediate Protocol: Immediately abort automated orchestration. Switch to "Manual-Emergency" mode defined in Appendix B. Deploy base virtual machine images from gold-standard templates and apply configuration management via local scripts to bypass broken CI/CD pipelines.

Scenario C: Network Partitioning/DNS Split-Brain

• Immediate Protocol: Disable secondary site DNS resolution. Flush local cache on core infrastructure nodes. Force-replicate the Global Load Balancer configuration from the authoritative secondary controller to establish a single source of truth for routing.