sourceDBInstanceIdentifier |
string |
The identifier of the DB instance that will act as the source for the Read Replica. Each DB instance can have up to five Read Replicas. Constraints: - Must be the identifier of an existing MySQL, MariaDB, or PostgreSQL DB instance.
- Can specify a DB instance that is a MySQL Read Replica only if the source is running MySQL 5.6.
- Can specify a DB instance that is a PostgreSQL Read Replica only if the source is running PostgreSQL 9.3.5.
- The specified DB instance must have automatic backups enabled, its backup retention period must be greater than 0.
- If the source DB instance is in the same region as the Read Replica, specify a valid DB instance identifier.
- If the source DB instance is in a different region than the Read Replica, specify a valid DB instance ARN. For more information, go to Constructing a Amazon RDS Amazon Resource Name (ARN).
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