DMS
AWS Cloud
Get started with AWS Database Migration Service

AWS Database Migration Service helps you migrate databases to AWS easily and securely. The source database remains fully operational during the migration, minimizing downtime to applications that rely on the database. The AWS Database Migration Service can migrate your data to and from most widely used commercial and open-source databases. The service supports homogenous migrations such as Oracle to Oracle, as well as heterogeneous migrations between different database platforms, such as Oracle to Amazon Aurora or Microsoft SQL Server to MySQL. It also allows you to stream data to Amazon Redshift from any of the supported sources including Amazon Aurora, PostgreSQL, MySQL, MariaDB, Oracle, and SQL Server, enabling consolidation and easy analysis of data in the petabyte-scale data warehouse.

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Simple to use

Simple to use

AWS Database Migration Service is simple to use. There is no need to install any drivers or applications, and it does not require changes to the source database in most cases. You can begin a database migration with just a few clicks in the AWS Management Console. Once the migration has started, AWS manages all the complexities of the migration process including automatically replicating data changes that occur in the source database during the migration process.

Zero Downtime

Zero Downtime

AWS Database Migration Service helps you migrate your databases to AWS with virtually no downtime. All data changes to the source database that occur during the migration are continuously replicated to the target, allowing the source database to be fully operational during the migration process. After the database migration is complete, the target database will remain synchronized with the source for as long as you choose, allowing you to switchover the database at a convenient time. 

Supports Most Widely Used Databases

Supports Most Widely Used Databases

AWS Database Migration Service can migrate your data to and from most of the widely used commercial and open source databases. It supports homogeneous migrations such as Oracle to Oracle, as well as heterogeneous migrations between different database platforms, such as Oracle to Amazon Aurora. Migrations can be from on-premises databases to Amazon RDS or Amazon EC2, databases running on EC2 to RDS, or vice versa, as well as from one RDS database to another RDS database.

Low cost

Low Cost

AWS Database Migration Service is a low cost service. You only pay for the compute resources used during the migration process and any additional log storage. Migrating a terabyte-size database can be done for as little as $3. This applies to both homogeneous and heterogeneous migrations of any supported databases. This is in stark contrast to conventional database migration methods which can be very expensive.

Fast and Easy to Set-up

Fast and Easy to Set-up

You can set up a migration task within minutes in the AWS Management Console. A migration task is where you define the parameters the AWS Database Migration Service uses to execute the migration. This includes setting up connections to the source and target databases, as well as choosing the replication instance used to run the migration process. Once setup, the same task can be used for test runs before performing the actual migration.

Reliable

Reliable

The AWS Database Migration Service is highly resilient and self–healing. It continually monitors source and target databases, network connectivity, and the replication instance. In case of interruption, it automatically restarts the process and continues the migration from where it was halted. Detailed diagnostic information is available for you to take the necessary corrective action for errors that cannot be automatically resolved.

AWS Schema Conversion Tool

The AWS Schema Conversion Tool makes heterogeneous database migrations easy by automatically converting the source database schema and a majority of the custom code, including views, stored procedures, and functions, to a format compatible with the target database. Any code that cannot be automatically converted is clearly marked so that it can be manually converted. Your source database can be on-premises, or in Amazon RDS or EC2 and the target database can be in either Amazon RDS or EC2. The AWS Schema Conversion Tool supports the following conversions. 

Source Database Target Database on Amazon RDS
Microsoft SQL Server Amazon Aurora, MySQL, PostgreSQL, MariaDB
MySQL and MariaDB PostgreSQL
Oracle Amazon Aurora, MySQL, PostgreSQL, MariaDB
PostgreSQL Amazon Aurora, MySQL, MariaDB
Amazon Aurora PostgreSQL
   

You can download AWS Schema Converstion Tool for your platform of choice from the links below


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In homogeneous database migrations, the source and target database engines are the same or are compatible like Oracle to Amazon RDS for Oracle, MySQL to Amazon Aurora, MySQL to Amazon RDS for MySQL, or Microsoft SQL Server to Amazon RDS for SQL Server. Since the schema structure, data types, and database code are compatible between the source and target databases, this kind of migration is a one step process. You create a migration task with connections to the source and target databases, then start the migration with the click of a button. AWS Database Migration Service takes care of the rest. The source database can be located in your own premises outside of AWS, running on an Amazon EC2 instance, or it can be an Amazon RDS database. The target can be a database in Amazon EC2 or Amazon RDS.

DMS-Homogeneous-Diagram-2
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Expedia, Inc. is one of the world’s leading travel companies, helping millions of travelers per month easily plan and book travel. “We are in the process of migrating some databases to Amazon Aurora,” said Kuldeep Chowhan, Principal Engineer, Expedia, Inc. “The ease by which we can do this using the AWS Database Migration Service has simplified this process for us and enabled us to accelerate our migration efforts. The ability to closely monitor the process, the detailed logging feature, and the support we received from AWS have given us a great deal of confidence in a successful migration.”


In heterogeneous database migrations the source and target databases engines are different, like in the case of Oracle to Amazon Aurora, Oracle to PostgreSQL, or Microsoft SQL Server to MySQL migrations. In this case, the schema structure, data types, and database code of source and target databases can be quite different, requiring a schema and code transformation before the data migration starts. That makes heterogeneous migrations a two step process. First use the AWS Schema Conversion Tool to convert the source schema and code to match that of the target database, and then use the AWS Database Migration Service to migrate data from the source database to the target database. All the required data type conversions will automatically be done by the AWS Database Migration Service during the migration. The source database can be located in your own premises outside of AWS, running on an Amazon EC2 instance, or it can be an Amazon RDS database. The target can be a database in Amazon EC2 or Amazon RDS.

DMS-Hetrogeneous-Diagram

Thomas Publishing is a 100 year old company that began publishing the Thomas Register of American Manufacturers in 1898. Thomas Publishing migrated their production database from Oracle to Amazon Aurora using the AWS Database Migration Service and Schema Conversion Tool. The entire migration process was completed in less than 4 weeks.


You can use AWS Database Migration Service to consolidate multiple source databases into a single target database. This can be done for homogeneous and heterogeneous migrations, and you can use this feature with all supported database engines. The source databases can be located in your own premises outside of AWS, running on an Amazon EC2 insatnce, or it can be an Amazon RDS database. The sources databases can also be spread across different locations. For example, one of the source databases can be in your own premises outside of AWS, while the second one in Amazon EC2, and the third one is an Amazon RDS database. The target can be a database in Amazon EC2 or Amazon RDS.

DMS-MultiSource-Diagram

It's easy to get started. Follow our Getting Started Guide to migrate your database using AWS Database Migration Service with just a few clicks.

 

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