DISASTER RECOVERY PLANNING
Be Prepared for the Unexpected
DR planning with documented RTO/RPO targets, regular failover testing, and battle-tested runbooks. Multi-region redundancy ensures rapid recovery when systems fail.
WHAT IS DISASTER RECOVERY
We design and implement disaster recovery strategies that protect your business from catastrophic failures. From business impact analysis to quarterly failover testing, we build DR plans that work when you need them most. Documented procedures, automated failover, and proven recovery runbooks ensure your team can respond confidently to any incident.
KEY SERVICES
Business Impact Analysis
We assess business-critical systems, acceptable downtime windows, and data loss tolerance. Define RTO (Recovery Time Objective) and RPO (Recovery Point Objective) targets that balance business needs with technical feasibility and budget. This assessment identifies which systems need aggressive recovery targets and which can tolerate longer recovery windows.
DR Strategy Development
We design disaster recovery strategy covering infrastructure failures, data corruption, and regional outages. Document recovery workflows and identify required infrastructure components. Not all systems require the same recovery capabilities, so we prioritise based on business criticality and revenue impact.
Runbook Creation
We write detailed runbooks with step-by-step recovery procedures for every failure scenario. Include escalation paths, communication templates, and decision trees for incident response. Runbooks are tested regularly and maintained in version control to reflect system changes.
Infrastructure Deployment
We deploy multi-region infrastructure with automated failover, backup replication, and recovery automation. Configure monitoring and alerting to detect failures immediately. Primary and secondary regions maintain warm standby infrastructure that is pre-provisioned and regularly tested.
Failover Testing
We conduct quarterly failover tests in production-like environments. Measure recovery times against documented RTO targets and identify gaps in procedures. Tests cover regional infrastructure failures, database failures, DNS failover edge cases, and application state recovery scenarios.
Continuous Improvement
Post-incident reviews capture lessons learned and refine procedures. Update runbooks based on test results and actual recovery experience to strengthen capabilities over time.
DR ARCHITECTURE
Multi-Region Infrastructure
We design multi-region architectures spanning AWS, GCP, or Azure availability zones and regions. Primary and secondary regions maintain warm standby infrastructure that is pre-provisioned, monitored, and regularly tested. Database replication ensures data is synchronised across regions, whilst automated DNS failover redirects traffic to healthy infrastructure within 15 minutes.
RTO and RPO Targets
Recovery Time Objective (RTO): How long before systems are restored
Recovery Point Objective (RPO): How much data loss is acceptable
Tier 1 mission-critical systems: RTO 15 minutes to 1 hour, RPO < 1 minute
Tier 2 operational systems: RTO 2-4 hours, RPO 15-60 minutes
Tier 3 non-critical systems: RTO 8+ hours, RPO 24+ hours
Automated Failover
We implement automated failover using infrastructure as code (Terraform, Ansible) to reduce human error during incidents. Geographic DNS failover (Route53, Cloudflare) automatically redirects traffic to healthy infrastructure. Automated recovery procedures execute documented runbooks reducing manual steps.
Business Continuity Planning
Documented RTO targets with tested failover procedures mean you recover fast. Sub-15-minute recovery times for critical systems keep business continuity intact.
DATA PROTECTION
Data loss during system failures can be catastrophic. We define RPO targets that balance business tolerance for data loss against infrastructure cost and complexity. Continuous database replication reduces RPO. Point-in-time recovery protects against corruption and ransomware scenarios, whilst multi-region replication ensures data survives regional outages.
TESTING SCHEDULE
Quarterly failover tests ensure DR capabilities remain effective:
- Test 1: Regional infrastructure failure with DNS failover
- Test 2: Database failure with replication failover
- Test 3: Application tier failure with automatic restart
- Test 4: Multi-region cascade failure scenario
Each test measures actual recovery times, identifies gaps, and updates runbooks based on findings.
BUSINESS OUTCOMES
Disaster recovery planning typically delivers:
- Sub-15-minute recovery time for critical systems
- Near-zero data loss through replication and point-in-time recovery
- Documented recovery runbooks tested quarterly
- Multi-region redundancy against regional outages
- Automated failover reducing manual error
- Post-incident review process preventing recurrence
- Regulatory compliance with documented DR procedures
- Team preparedness through quarterly failover testing
COMPLIANCE
Disaster recovery planning satisfies regulatory requirements:
- DORA: Annual testing programmes for digital operational resilience (EU financial institutions)
- ISO 22301: Documented RTO/RPO targets and business continuity controls
- PCI DSS: Business continuity and disaster recovery procedures
- HIPAA: Documented recovery and restoration procedures
- FCA: Operational resilience requirements for critical business services
TIMELINE
Initial business impact analysis: 1-2 weeks
DR strategy development: 2-4 weeks
Runbook creation: 2-4 weeks
Infrastructure deployment: 4-8 weeks
Initial failover test: 1 week
Quarterly ongoing testing: Ongoing
DISASTER RECOVERY IN PRACTICE
Business Impact Analysis Details
Business impact analysis evaluates each system:
Revenue impact: Systems directly generating revenue require aggressive recovery targets
Customer-facing impact: Systems affecting customer experience require rapid recovery
Operational impact: Back-office systems can tolerate longer recovery windows
Compliance impact: Systems holding regulated data require specific recovery capabilities
This tiered approach allocates recovery investment to highest-impact systems first.
RTO and RPO Determination
Recovery objectives depend on business tolerance:
Critical systems:
- RTO 15 minutes to 1 hour (application must be restored rapidly)
- RPO < 1 minute (nearly zero data loss acceptable)
Standard systems:
- RTO 2 to 4 hours (application can be unavailable for short periods)
- RPO 15 to 60 minutes (some data loss acceptable)
Non-critical systems:
- RTO 8+ hours (application can be unavailable for extended periods)
- RPO 24+ hours (data loss acceptable for non-critical systems)
Failover Strategy Options
Multi-region deployment:
- Primary and secondary regions maintain full infrastructure
- Database replication keeps data synchronised
- DNS failover redirects users to healthy region
- Costs money to maintain standby infrastructure but enables sub-15-minute recovery
Warm standby:
- Secondary region maintains idle infrastructure ready for rapid activation
- Database replication via binary logs/WAL archives
- Faster recovery than cold standby but cheaper than active-active
Cold standby:
- Infrastructure defined in infrastructure-as-code but not running
- Terraform scripts provision infrastructure as needed
- Slowest recovery but lowest ongoing costs
Infrastructure Automation
Terraform and Ansible enable rapid recovery:
Infrastructure as code defines all infrastructure in version-controlled files. Deploying production-sized infrastructure takes minutes with automated scripts.
Application configuration management with Ansible ensures systems are configured correctly immediately.
Automated recovery procedures eliminate manual error during high-pressure incidents.
DR Testing Discipline
Quarterly failover tests validate DR capabilities:
Test 1: Regional outage simulation switching traffic to secondary region
Test 2: Database failure triggering replication failover
Test 3: Application tier failure triggering automatic restart
Test 4: Multi-component cascade failure testing full recovery procedures
Each test measures recovery times, identifies gaps, and updates runbooks.
Post-Incident Reviews
Every incident becomes a learning opportunity:
Root cause analysis identifies underlying issues, not just symptoms. Solutions prevent recurrence, not just fix immediate problems.
Runbook updates reflect actual experience. Procedures improve based on what actually happens.
Process improvements prevent similar incidents in future. The goal is continuous improvement, not just return to service.
COMMUNICATION DURING INCIDENTS
Clear communication reduces panic:
Stakeholder communication: Regular updates during incident
Customer communication: Transparent communication about impact and ETA
Status dashboard: Real-time visibility into recovery progress
Post-incident communication: What happened, why, and what we're doing to prevent recurrence
Communication discipline builds stakeholder confidence that the situation is under control.
REGULATORY COMPLIANCE
Disaster recovery satisfies regulatory requirements:
DORA (EU financial institutions, effective 2025): Mandates annual digital operational resilience testing including recovery capabilities
ISO 22301: Business continuity standard requiring documented RTO/RPO targets and regular testing
PCI-DSS: Payment card industry requiring business continuity procedures
HIPAA: Healthcare requiring documented disaster recovery procedures
Documented DR plans with test results provide evidence of compliance readiness.
COST OPTIMISATION
Disaster recovery doesn't require unlimited spending:
Tiered recovery targets match spending to business criticality. Mission-critical systems get multi-region deployment. Standard systems use warm standby. Non-critical systems use cold standby.
Shared infrastructure reduces costs by combining capacity. Primary infrastructure handles normal operations. Secondary infrastructure stands ready for failover, potentially hosting development or testing workloads.
Cloud-native disaster recovery is often cheaper than traditional approaches. Cloud provider SLAs handle much of the heavy lifting.
TEAM PREPAREDNESS
DR training ensures successful execution:
Documentation: Detailed runbooks for every scenario
Training: Team workshops covering procedures and contingencies
Drills: Quarterly failover tests serving as practical training
Decision trees: Clear guidance for common scenarios
Well-trained teams execute recovery faster and with fewer errors.
BUSINESS CONTINUITY PLANNING
Disaster recovery is part of broader business continuity:
Alternative facilities: Arrangements for staff to work from alternative locations
Alternative communications: Backup communication channels if primary are down
Vendor relationships: Pre-arranged vendor support during emergencies
Insurance: Cyber insurance covering disaster costs
Comprehensive business continuity planning protects the full business, not just infrastructure.
METRICS AND REPORTING
Track disaster recovery effectiveness:
Mean time to recovery (MTTR): Average time to restore failed systems
Recovery point objective (RPO): Maximum acceptable data loss
Recovery time objective (RTO): Maximum acceptable downtime
Test success rate: Percentage of failover tests succeeding
Monthly reporting shows DR capabilities and areas for improvement.
CONTACT
Discuss your DR requirements and begin disaster recovery planning today.