Case Study: Disaster Recovery and High Availability

A financial services company providing online payment solutions to global customers.

100%

D R Coverage

99.99%

Up Time Achieved

Objective:

  1. Design and implement a Disaster Recovery (DR) plan to minimize downtime and data loss during unexpected events.
  2. Build a high availability (HA) architecture to ensure uninterrupted service and maximum uptime for critical applications.

Challenges

  1. Downtime Risks: Frequent outages during maintenance windows and unexpected server failures impacted customer trust and transactions.
  2. Data Loss Concerns: The absence of a robust backup and recovery solution increased the risk of permanent data loss in case of disasters.
  3. Global User Base: Ensuring low-latency, reliable access for users across multiple regions was a critical requirement.

Solution Provided by Compute Universe

1. Disaster Recovery Planning & Execution

  • Risk Assessment: Conducted a comprehensive analysis of potential risks, including hardware failures, cyber-attacks, and natural disasters.
  • DR Strategy Design: Designed a multi-cloud disaster recovery plan using:
    • AWS Backup: Automated and encrypted backups for critical databases and file systems.
    • Azure Site Recovery: Configured replication for virtual machines, ensuring fast failover to secondary regions.
    • VMware Site Recovery Manager: Enabled seamless failover and failback for on-premises systems.
  • Testing and Validation: Simulated disaster scenarios to validate the DR plan, ensuring data recovery within the agreed RTO (Recovery Time Objective) and RPO (Recovery Point Objective).

2. High Availability & Fault-Tolerant Architecture

  • Multi-Region Setup: Deployed applications in AWS and Azure across multiple regions, enabling failover between regions for uninterrupted service.
  • Load Balancing: Implemented AWS Elastic Load Balancers (ELB) and Azure Traffic Manager to distribute traffic evenly across instances and regions.
  • Active-Active Architecture: Configured an active-active setup with Kubernetes, ensuring applications remained operational even during instance failures.
  • DNS Routing: Used AWS Route 53 with health checks to route users to the nearest healthy region, minimizing latency and downtime.

3. Monitoring and Automation

  • Configured monitoring tools like AWS CloudWatch and Azure Monitor for real-time tracking of system health.
  • Automated failover processes to trigger recovery workflows without manual intervention.
  • Implemented alerts for critical metrics to proactively address potential issues.

Key Factors of Success

  1. 100% Disaster Recovery Coverage: Comprehensive backup and failover solutions ensured zero data loss during simulated disaster scenarios.
  2. 99.99% Uptime Achieved: The high availability architecture minimized downtime, delivering an uninterrupted experience for global users.

Results

  • Faster Recovery: The DR plan enabled the client to recover from simulated disasters within the defined RTO of 15 minutes.
  • Improved Reliability: The HA setup reduced unplanned downtime to less than 1 hour annually.
  • Global Accessibility: Multi-region deployments significantly improved performance for users in North America, Europe, and Asia.
  • Enhanced Customer Trust: Reliable services and data security measures boosted client confidence and retention.

Key Tools and Technologies Used

  • Disaster Recovery:
    • Azure Site Recovery
    • AWS Backup
    • VMware Site Recovery Manager
  • High Availability:
    • AWS Route 53
    • Azure Traffic Manager
    • Kubernetes
    • AWS Elastic Load Balancers (ELB)
  • Monitoring:
    • AWS CloudWatch
    • Azure Monitor

Client Testimonial

“Team has done good work”