DRS supports backup migrations of various database types.

**Table 1** Database types
Data Flow	Backup File Source	Destination DB Type
Microsoft SQL Server -> RDS Microsoft SQL Server	On-premises Microsoft SQL Server backup files RDS Microsoft SQL Server full backup files Microsoft SQL Server backup files on other clouds	RDS Microsoft SQL Server DB instances

**Table 2** Migration methods
Data Flow	Full Migration	Incremental Migration
Microsoft SQL Server -> RDS Microsoft SQL Server	Supported	Supported

**Table 3** Database versions
Data Flow	Backup File Version	Destination DB Version
Microsoft SQL Server -> RDS Microsoft SQL Server	On-premises and other cloud's Microsoft SQL Server backup file versions: Microsoft SQL Server 2000 Microsoft SQL Server 2005 Microsoft SQL Server 2008 Microsoft SQL Server 2012 Microsoft SQL Server 2014 Microsoft SQL Server 2016 Microsoft SQL Server 2017 Microsoft SQL Server 2019	Microsoft SQL Server 2008 Microsoft SQL Server 2012 Microsoft SQL Server 2014 Microsoft SQL Server 2016 Microsoft SQL Server 2017 Microsoft SQL Server 2019
Microsoft SQL Server -> RDS Microsoft SQL Server	RDS Microsoft SQL Server full backup file versions: Microsoft SQL Server 2008 Microsoft SQL Server 2012 Microsoft SQL Server 2014 Microsoft SQL Server 2016 Microsoft SQL Server 2017 Microsoft SQL Server 2019	Microsoft SQL Server 2008 Microsoft SQL Server 2012 Microsoft SQL Server 2014 Microsoft SQL Server 2016 Microsoft SQL Server 2017 Microsoft SQL Server 2019

**Table 4** Migration scenarios
Scenario	Description
OBS bucket	If you copy the database backup files to an Object Storage Service (OBS) bucket, ensure that the OBS bucket is located in the same region as the destination instance.
RDS full backup	If you select an RDS full backup as the backup file source, ensure that the RDS instance has a full backup.