When to consider Flexible Server
Our recommendation is to evaluate Flexible Server first when your application already runs on Azure and needs managed PostgreSQL. Confirm your database version, extensions, target region, and recovery needs before choosing a configuration.
A compute tier describes part of the setup. It does not prove the database can handle a particular application workload or number of users.
Make availability an explicit choice
Decide whether the app requires a primary and standby. Check the region’s supported zone configuration and the selected compute tier. Match those choices when comparing another provider’s database.
Our recommendation is to document the acceptable interruption and restore window before enabling extra resources. Availability and recovery protect against different problems.
Choose the backup workflow
Automated backups provide a defined restore window. A separate export workflow is needed when you want a portable logical copy of the data. Check these workflows independently when planning a migration or retention policy.
Use the official backup documentation to check current behavior and limits, then test the process with your own database.
Prepare a complete cost request
Record compute resources, runtime, storage, performance requirements, standby configuration, backups, and networking. Compare the recurring bill before applying credits or commitment discounts.
The official pricing page describes billing options. The AWS RDS comparison provides the decision framework for a second option.