Reserved instances are now available for Aurora MySQL Graviton4 (r8g)! Cheaper and more powerful than Graviton3 (r7g)!
This is Onkai Yuta (@fat47) from the Service Reliability Group (SRG) of the Media Headquarters.
#SRG(Service Reliability Group) mainly provides cross-sectional support for the infrastructure of our media services, improving existing services, launching new ones, contributing to OSS, etc.
This article summarizes the fact that reserved instances are now available for Aurora MySQL Graviton4 (r8g).
I hope this helps in some way.
Graviton4 (r8g) Long-awaited Reserved InstancesCompare pricing for different instance typesCost-effectiveness and migration considerationsConclusion
Graviton4 (r8g) Long-awaited Reserved Instances
On-demand availability of Graviton4 (r8g) instances for Aurora MySQL began in the Tokyo region on March 14, 2025, but reserved instances were not yet available in any regions, including North America.
Here is our blog article in which we tested the performance of each generation when r8g was released.
And today (May 14, 2025), Graviton4 (r8g) Reserved Instances for Aurora MySQL were released and are now available.
Compare pricing for different instance types
With the launch of Reserved Instances, the question of price comes to mind.
large| Instance type | On-Demand Rate (USD/h) | Reserved Instance Price (USD/h) | Discount from on-demand rate |
|---|---|---|---|
| db.r8g.large | 0.333 | 0.210 | Approximately 33% OFF |
| db.r7g.large | 0.333 | 0.243 | Approximately 27% OFF |
| db.r6g.large | 0.313 | 0.174 | Approximately 44% OFF |
https://aws.amazon.com/jp/rds/aurora/pricing/Some information is excerpted from:
From the table above, we can see that a db.r8g.large Reserved Instance would provide approximately 33% cost savings compared to on-demand pricing.
This is a higher discount than the approximately 27% discount on db.r7g.large.
Cost-effectiveness and migration considerations
r6g.largebut,If you are using an instance type larger than r6g.largeBy switching from r6g to r8g, it is possible to achieve cost optimization by reducing instance size while improving performance, so it is a good idea to actively consider adopting Graviton4 (r8g).
Graviton4(r8g) is availableAurora MySQL v3.08 or higheris necessary,Not available in LTS v3.04Note the following points:
Conclusion
We are very happy to offer Reserved Instances for Aurora MySQL Graviton4 (r8g) instances.
I plan to continue with calculations in the environment I am in charge of, so I would like to actively consider Graviton 4.
However, it is not available in Aurora MySQL LTS v3.04, so I am wondering what to do...
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