For AWS RDS SQL
For credential validation, IAM is not supported for AWS RDS SQL. You can use the username and password method.
Cannot restore databases that contain a FILESTREAM file group.
Cannot restore databases with the same name as an existing database. Database names must be unique.
You can run up to two backups or restore tasks simultaneously for a specific RDS SQL instance.
RDS SQL supports native restores of databases up to 16 TB. You can only restore 10 gigabytes of databases on SQL Server Express Edition.
Native backups are not supported during the maintenance window or when Amazon RDS SQL is taking a snapshot of the database. A native backup task is cancelled, if it overlaps with the daily backup window of the RDS.
The TDE certificate from the source RDS SQL instance must be present on the target RDS SQL instance to perform an alternate location restore of a TDE-enabled database.
You can create native backups of TDE-enabled databases, but cannot restore those backups to on-premises databases.