- Run the following command to promote your read-replica to a primary DB instance. This command will cause your read-replica to reboot:
aws rds promote-read-replica \
--db-instance-identifier <identifier-for-read-replica>
- If you wish to then go ahead and configure your new primary RDS instance to run in a multi-AZ configuration then you'll need to run this additional command. Expect to wait a while for this operation to complete:
aws rds modify-db-instance \
--db-instance-identifier <identifier-for-new-primary> \
--multi-az \
--apply-immediately