This page describes the migration jobs available in Database Migration Service with
homogeneous migrations: for pre-existing destination instances, and ones that
Database Migration Service creates on your behalf during the migration job configuration.
Destination databases created by Database Migration Service
In most migration scenarios, Database Migration Service creates a new destination database
instance for you as a part of the migration job creation flow. If you want
Database Migration Service to create the destination database for you,
follow the guidance in
Create a migration job to a new destination instance.
Destination databases created outside Database Migration Service
You can create your destination database instance outside of
Database Migration Service before you configure the migration job.
This approach is especially useful when you plan to utilize Terraform or other
infrastructure as code tools to manage your infrastructure.
There are certain limitations that you should
consider when you want to migrate to a destination instance
created outside of Database Migration Service. For more information, see
Known Limitations.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-04-17 UTC."],[[["Database Migration Service supports homogeneous migrations to both pre-existing destination instances and new instances it creates during job configuration."],["The service can create a new destination database instance for you as part of the migration job creation."],["You also have the option to create your destination database outside of the service, which is beneficial when using infrastructure-as-code tools."],["Migrating to pre existing destination instances comes with some limitations that should be taken into account."],["There are specific guides available for creating migration jobs to new instances and to existing instances, that are made outside of Database Migration Service."]]],[]]
