Zero Downtime Cloud Migration
Seamless AWS migration with 99.95% uptime for a growing online retailer
The Challenge
An online furniture retailer with $8M annual revenue was running on aging on-premise infrastructure. Frequent outages during peak shopping periods cost them thousands in lost sales. Their servers couldn't handle traffic spikes during promotions, and backup systems were unreliable. They needed to migrate to the cloud without disrupting operations during the critical holiday season.
Our Solution
AWS Architecture
Designed scalable infrastructure using EC2, RDS, S3, and CloudFront for global content delivery
Automated Failover
Implemented multi-AZ deployment with automatic failover to ensure continuous availability
Auto-Scaling
Configured auto-scaling groups to handle traffic spikes automatically without manual intervention
Phased Migration
Executed migration in stages with parallel running systems to ensure zero downtime transition
Results
- 99.95% uptime maintained since migration (18 months)
- Zero downtime during migration process, completed over 3 weekends
- Page load times improved from 4.2s to 1.3s (3x faster)
- Successfully handled Black Friday traffic spike of 850% without issues
- Infrastructure costs reduced by 28% through right-sizing and reserved instances
Technologies Used
"DR DATA SERVICES made our cloud migration painless. We didn't lose a single sale during the transition, and our site performance has never been better."
— CTO, Online Furniture Retailer