We are pleased to announce public preview availability of online migration in Azure Database Migration Service (DMS). Azure DMS represents a single service that you can use for migrating data from different database engines to Azure with built-in resiliency and robustness. Using online migrations, businesses can migrate their databases to Azure while the databases continue to be operational. This means that migrations can be completed with minimum downtime for critical applications, limiting the impact to service level availability and inconvenience their end customers.
Customers can now use online migrations for on-premises/VM PostgreSQL workloads to Azure Database for PostgreSQL in all regions in which Azure DMS is available. For up-to-date information about the regional availability of Azure DMS, see Products available by region .
Note : For for online migrations with Azure DMS, you must use a DMS instance that is based on the Business Critical (Preview) pricing tier.
Please refer to the online migration resources below for additional details.