Enterprise ERP Cloud Transformation
Zero-Downtime Migration & 45% TCO Reduction
[ BUSINESS CONTEXT ]
An international manufacturing group was constrained by aging on-premise data centers that incurred massive maintenance costs and lacked the elasticity needed to support their rapid expansion into new European markets.
[ PROJECT CHALLENGE ]
The legacy ERP system handled $2B in annual transactions. The migration required a flawless cutover window of less than 4 hours to avoid catastrophic supply chain disruptions across 14 global facilities.
[ STRATEGIC SOLUTION ]
We orchestrated a phased lift-and-shift followed by progressive cloud-native refactoring. The target architecture leveraged AWS EC2, RDS Multi-AZ, and Elastic Load Balancing, provisioned entirely via Infrastructure as Code (Terraform).
Engineering Methodology
Infrastructure as Code
Automated all AWS environment provisioning using Terraform to ensure repeatability and eliminate configuration drift.
Database Migration Service
Utilized AWS DMS for continuous logical replication of the Oracle DB to PostgreSQL.
Load Testing
Simulated 3x peak Black Friday traffic using JMeter to validate auto-scaling configurations.
Cutover Execution
Executed a precision DNS failover strategy during a 2-hour maintenance window.
Quantified Engineering Impact
Eliminated hardware refresh cycles and expensive commercial database licensing.
Multi-AZ deployment ensured uninterrupted service even during isolated data center outages.
Extensive pre-migration replication allowed for near-instantaneous DNS switching.
Auto-scaling groups automatically handle end-of-month financial closing load spikes.