L&T Technology Services (LTTS) is a global leader in Engineering and R&D services, serving 57 of the world’s top 100 ER&D spenders. With 1,100+ patents filed and 102 innovation & design centers worldwide, LTTS is behind breakthroughs such as the world’s first autonomous welding robot, solar-powered connectivity drones, and the world’s smartest campus.
Their expertise spans 5G, AI, collaborative robotics, digital factories, and autonomous transport, touching lives across industries every day.
The Challenge: LTTS relied heavily on on-premises infrastructure, which created challenges in both cost and efficiency:
High CapEx – Heavy spend on hardware and maintenance without flexibility. Critical Workloads – Production applications using MS-SQL required high availability, failover clustering, and automated backups. Storage Constraints – Needed a scalable, cost-effective backup solution without relying on physical servers. Underutilization – Applications often ran outside of working hours, causing unnecessary infrastructure costs. LTTS needed a cloud-first model that offered scalability, high availability, and automation while optimizing cost.
The Solution: Pentagon migrated LTTS’s workloads to AWS Cloud, implementing a resilient and cost-efficient setup through a structured migration approach:
Assessment – Analyzed dependencies, performance, and complexity with AWS Application Discovery Service. Mobilize – Built the AWS environment using Application Migration Service with secure VPCs, subnets, and IAM roles. Migrate & Modernize – Deployed production workloads on EC2, configured high-availability MS-SQL clusters, and integrated backup, monitoring, and automation. Key Components Deployed:
Amazon EC2 & VPC – Secure hosting with multi-AZ deployment. SQL Always-On Clustering – High availability and failover protection for critical DBs. Elastic Load Balancer – Even traffic distribution for uptime. Amazon S3 & EBS Snapshots – Unlimited, scalable backup storage. CloudWatch & CloudTrail – Monitoring, performance alerts, and audit logging. AWS Lambda – Automated EC2 start/stop during business hours to cut costs.
Benefits
Cost Savings
Eliminated CapEx on servers, reduced power and maintenance costs by moving infra to AWS.
High Availability
SQL Always-On clustering + multi-AZ EC2 ensured near-zero downtime for production systems.
Unlimited, Low-Cost Backup
Automated backups stored securely in Amazon S3.
Performance & Scalability
Flexible infrastructure scaled seamlessly with demand.
On-Demand Optimization
Lambda-based automation reduced infra costs by running only during working hours.
