This document discusses two case studies: a database migration to AWS and how a company survived a large event on their system. It provides the following key points:
1. The database migration case involved planning the migration of an on-premises Oracle database to AWS Aurora MySQL. Enterprise Support helped develop a plan with architecture reviews, load testing, and risk mitigation.
2. For the large event, the company established a "war room" to monitor systems like load balancers, databases and caches. They addressed issues like slow queries, caching and logging. This helped the system handle the load from a concert event.
3. Lessons from both cases included the importance of planning, load testing, addressing