restoreDbInstanceFromS3

Amazon Relational Database Service (Amazon RDS) supports importing MySQL databases by using backup files. You can create a backup of your on-premises database, store it on Amazon Simple Storage Service (Amazon S3), and then restore the backup file onto a new Amazon RDS DB instance running MySQL. For more information, see Importing Data into an Amazon RDS MySQL DB Instance in the Amazon RDS User Guide.

This operation doesn't apply to RDS Custom.