Use-Case-Type--On-Premises-to-AWS-Disaster-Recovery-(DR)

Case study | AWS

On-Premises to AWS Disaster Recovery (DR)

The client

A leading Financial Services / Wealth Management organization operating a mission-critical digital investment platform engaged enreap to modernize its Disaster Recovery (DR) strategy. The platform processes high-value financial transactions and sensitive investor data, making high availability, data integrity, and regulatory compliance non-negotiable. The production environment was hosted entirely on-premises, creating scalability and resilience limitations.

Client requirements

Near-Zero Data Loss

Achieve an aggressive Recovery Point Objective (RPO ≤ 1 minute) for mission-critical financial applications.

Rapid Disaster Recovery

Ensure Recovery Time Objective (RTO ≤ 15 minutes) to minimize business disruption during DR events.

Secure & Compliant DR Architecture

Implement encrypted replication, secure connectivity, audit logging, and compliance-ready disaster recovery processes.

Scalable Cloud-Based Resilience

Modernize the existing on-premises DR strategy with a scalable AWS-based disaster recovery environment.

Operational Simplicity

Reduce infrastructure management overhead through a managed database approach while simplifying DR operations.

Cost-Optimized Business Continuity

Deliver a disaster recovery solution that maintains cost parity or lowers overall DR investment without compromising resilience.

Our approach

enreap designed and implemented a secure On-Premises to AWS Disaster Recovery architecture, leveraging Amazon EC2 for the application tier and Amazon RDS for SQL Server for the database tier. The solution incorporated encrypted replication, controlled DNS failover, real-time monitoring, and structured DR drills to validate recovery objectives and operational readiness.

Our solution

Secure-Quality-Delivery

Secure AWS DR Foundation

Established a secure AWS environment with a Virtual Private Cloud (VPC) configured with public and private subnets.

icon-ppm-consulting-services-Measuring-Transformation-and-Connected-Business-and-Technology

Site-to-Site VPN Connectivity

Enabled secure connectivity between the on-premises environment and the AWS Mumbai Region for reliable disaster recovery operations.

monitoring

Highly Available Application Infrastructure

Deployed the application tier on multi-AZ Amazon EC2 instances to ensure resilience and high availability.

Security-and-Privacy.

Managed Database & Secure Replication

Implemented Amazon RDS for SQL Server with KMS encryption, SSL/TLS, and SQL Server Log Shipping for secure, low-latency replication.

icon-itsm-services-Strategic-Failure-Prevention

Controlled Failover & File Synchronization

Used GoodSync for continuous application file synchronization and Cloudflare DNS for controlled traffic redirection during DR events.

icon-aws-cloud-services-Proactive-Monitoring

Monitoring, Governance & Compliance

Strengthened security and operational visibility through IAM least-privilege access, Amazon CloudWatch, AWS CloudTrail, and Amazon S3 for centralized backup and log storage.

Business benefits

Business-Benefits-3

Technology stack

Amazon-EC2
Amazon-CloudWatch