Question

A retail company runs a monolithic Java order-management application on 40 on-premises VMs. Leadership wants to reduce total cost of ownership over the next 3 years and improve deployment agility, but only has a small team with limited AWS experience and a hard 6-month deadline to exit the data center. The application has tightly coupled modules and a large Oracle database. Which migration approach best balances the deadline, team capacity, and long-term modernization goals?

Accepted Answer

Rehost all VMs with AWS MGN now to meet the deadline, then incrementally refactor the monolith into microservices and replatform the database after the data center exit is complete.

Answer

Refactor the entire monolith into containerized microservices on Amazon ECS and migrate the Oracle database to Aurora PostgreSQL before the data center exit.

Answer

Repurchase by replacing the custom order-management application with a SaaS product and retire the existing codebase within the 6-month window.

Answer

Retain the application on-premises and use AWS Direct Connect to burst compute to AWS until the team gains enough experience to refactor.