AWS Database Migration Service Enhances Performance with New C7i and R7i Instance Support
Amazon Web Services (AWS) is pleased to announce a significant enhancement to the AWS Database Migration Service (DMS) with the introduction of support for the latest generation of compute and memory-optimized EC2 instances: C7i and R7i instances. This update, published on July 9, 2025, at 9:30 PM, empowers customers with greater flexibility and improved performance for their database migration projects.
For organizations undertaking the critical task of migrating databases to the AWS Cloud, having robust and efficient infrastructure is paramount. AWS DMS has long been a trusted service, simplifying and accelerating the process of moving databases from various sources to AWS databases. The integration of C7i and R7i instances represents a natural progression in AWS’s commitment to providing cutting-edge technology that directly benefits our customers’ operational needs.
Understanding C7i and R7i Instances
The C7i instances are built on the latest generation Intel Xeon Scalable processors, offering superior performance for compute-intensive workloads. This makes them an ideal choice for database migration tasks that require substantial processing power for tasks such as data transformation, validation, and replication. By leveraging the enhanced CPU capabilities of C7i instances, customers can anticipate faster migration times and improved throughput, particularly for complex or large-scale database migrations.
Complementing this, the R7i instances are memory-optimized, powered by the same latest generation Intel processors. These instances are designed to provide significantly more memory compared to previous generations, making them exceptionally well-suited for workloads that demand high memory bandwidth and capacity. For database migration scenarios involving very large datasets or those requiring extensive in-memory caching for replication processes, R7i instances offer a substantial advantage. Their increased memory footprint can lead to reduced disk I/O, faster query execution during migration, and an overall smoother migration experience.
Key Benefits for AWS DMS Users:
The support for C7i and R7i instances brings several tangible benefits to AWS DMS users:
- Accelerated Migration Times: With the increased compute power of C7i instances, the processing of data for migration can be significantly faster. This translates to reduced downtime windows for critical applications.
- Enhanced Throughput: Both instance types, particularly R7i with its memory optimizations, can handle larger volumes of data concurrently, leading to higher migration throughput.
- Improved Performance for Complex Migrations: For migrations involving complex transformations, schema conversions, or large-scale data replication, the advanced capabilities of these new instances will provide a more robust and efficient experience.
- Greater Cost-Effectiveness: By achieving faster migration times and higher throughput, customers can potentially reduce the overall duration of their migration projects, leading to cost savings. Furthermore, optimizing instance selection can lead to more efficient resource utilization.
- Increased Flexibility in Instance Selection: This expansion of supported instance types provides customers with a wider array of options to tailor their AWS DMS deployment to the specific demands of their database migration, ensuring they can select the most appropriate and performant hardware for their unique needs.
This latest advancement from AWS underlines our dedication to continuously improving the services we offer. By enabling AWS DMS to leverage the power of C7i and R7i instances, we are providing our customers with the tools they need to execute their database modernization strategies with greater speed, efficiency, and confidence. We encourage customers to explore these new instance options for their upcoming database migration projects and experience the performance benefits firsthand.
AWS Database Migration Service now supports C7i and R7i instances
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