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Target customers: enterprise users who want to use read-only RDS instances to offload read requests during peak hours and run analytics tasks. Features released: Users can configure the read attribute for secondary RDS instances that run SQL Server EE on RDS Cluster Edition. After you create an RDS instance that runs SQL Server EE on RDS Cluster Edition, a primary RDS instance and a secondary RDS instance are provisioned. By default, the secondary RDS instance is read-only and can serve as a read-only RDS instance, which reduces the cost of cloud migration. After a user configures the read attribute for a secondary RDS instance, the user can create more read-only RDS instances and specify read weights to implement load balancing.