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AWS announces Amazon Aurora I/O-Optimized

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Today, we are announcing the general availability of Amazon Aurora I/O-Optimized, a new configuration that provides improved price performance and predictable pricing for customers with I/O-intensive applications. Aurora I/O-Optimized offers improved performance, increasing throughput and reducing latency for customers’ most demanding workloads. With Aurora I/O-Optimized, there are zero charges for read and write I/O operations—you only pay for your database instances and storage usage, making it easy to predict your database spend up front. Aurora I/O-Optimized offers up to 40% cost savings for I/O-intensive applications where I/O charges exceed 25% of the total Aurora database spend. You can now choose between two configurations: Aurora Standard or Aurora I/O-Optimized. For applications with low-to-moderate I/Os, Aurora Standard is a cost-effective option. For applications with high I/Os, Aurora I/O-Optimized provides improved price performance, predictable pricing, and up to 40% costs savings. You can switch your cluster with a single click in the AWS Management Console or with a command through the AWS Command Line Interface. Aurora I/O-Optimized configuration is supported on Aurora Serverless v2 and provisioned instances, both on demand and reserved including existing Aurora reserved instances. You can switch existing database clusters to Aurora I/O-Optimized once every 30 days and switch back to Aurora Standard at any time. Aurora I/O-Optimized is supported on Amazon Elastic Compute Cloud (Amazon EC2) T3, R5, R6i, R6g, X2g, and the recently launched [R7g instances](https://aws.amazon.com/about-aws/whats-new/2023/05/amazon-aurora-mysql-postgresql-graviton3-based-r7g-instance-family/). R7g instances are powered by the latest generation AWS Graviton3 processors, delivering up to 30% performance gains and up to 20% improved price performance for Aurora, as compared to Graviton2 R6g instances. Aurora I/O-Optimized is available for Amazon Aurora PostgreSQL-Compatible Edition and Amazon Aurora MySQL-Compatible Edition in most [AWS Regions](https://aws.amazon.com/about-aws/global-infrastructure/regional-product-services/) where Aurora is available. To learn more, visit the [Aurora Pricing page](https://aws.amazon.com/rds/aurora/pricing/) or [Aurora storage and reliability](https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Aurora.Overview.StorageReliability.html) in the Aurora User Guide. To get started, visit the [AWS Management Console](https://console.aws.amazon.com/console/home). **May 12, 2023:** _Updated to specifiy supported instances for Amazon Aurora I/O-Optimized._