Why Can't I Purchase Read Replicas on the RDS Console?

Read replicas cannot be purchased separately. A single or primary/standby DB instance must be purchased first, as shown in Figure 1. A read replica uses an IP address independent from that of the DB instance it is associated with.

Figure 1 Creating a read replica

• For details about RDS for MySQL read replicas, see Introducing Read Replicas.
• For details about RDS for MariaDB read replicas, see Introducing Read Replicas.
• For details about RDS for PostgreSQL read replicas, see Introducing Read Replicas.