Let's say you have an on-premises MySQL database that you want to migrate to Amazon RDS. Here are the steps you would take to use DMS for this migration:
Create a replication instance: In the AWS Management Console, create a replication instance in the same region where your target database is located. The replication instance acts as a bridge between the source and target databases.
Create a source endpoint: Create a source endpoint that points to your on-premises MySQL database. You will need to provide the endpoint URL, port number, and login credentials.
Create a target endpoint: Create a target endpoint that points to your Amazon RDS database. You will need to provide the endpoint URL, port number, and login credentials.
Create a replication task: Create a replication task that specifies the source and target endpoints, the replication instance, and any migration options or settings. You can specify options such as table mappings, data transformation, and filtering.
Start the replication task: Once you have configured the replication task, start it to begin migrating data from your on-premises MySQL database to Amazon RDS.
Monitor and troubleshoot: Monitor the replication task to ensure that the migration is proceeding smoothly. DMS provides detailed monitoring and logging to help you troubleshoot any issues that arise.
Once the replication task is complete, your on-premises MySQL database will have been migrated to Amazon RDS, and you can begin using the new database in the cloud. This is just one example of how AWS Database Migration Service can be used to migrate a database, and there are many other use cases and migration scenarios that can be supported by this service.
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