Question

A retail company is migrating a 2 TB Oracle database running on-premises to Amazon Aurora PostgreSQL. The database is actively used by production applications during business hours, and the business requires that the source database remain fully operational with minimal downtime during the migration. After the initial data copy, all new and changed records in the source must continue to be replicated to Aurora until the final cutover. Which AWS DMS approach meets these requirements?

Accepted Answer

Create a DMS task with migration type 'Migrate existing data and replicate ongoing changes' (full load plus CDC).

Answer

Create a DMS task with migration type 'Migrate existing data only' (full load) and schedule it to rerun nightly.

Answer

Create a DMS task with migration type 'Replicate data changes only' (CDC only) starting from the migration begin time.

Answer

Use AWS DataSync to copy the database files to Aurora and enable continuous synchronization.