compatibility between t3.medium and c7g.xlarge

Question

In order to change instance from t3.medium to c7g.xlarge, I'd like to know compatibility between them. According to AWS guide on a page, if there is compatibility between t3.medium and c7g.xlarge, the change could be done after stopping current instance (t3.medium) immediately.

Chirag Nayyar · Answer

It depends upon your application, moving from Intel based chip to Graviton chip requires some work to rebuild the application. You can run this AWS provided free utility to check if app packages are compatible with graviton bases instances.

https://github.com/aws/porting-advisor-for-graviton

Dave Connelly AWS · Answer

This knowledge center link describes how to
* Determine compatibility of your application source code and libraries with AWS Graviton-based instances.
* Use the online or offline method to copy your data to the new instance.

https://repost.aws/knowledge-center/ec2-linux-migrate-to-graviton

Dave Connelly AWS · Answer

Hi Tak,
The T3 and C7g instance families have different underlying architectures and processors, so some compatibility considerations apply when changing instance types:

* T3 instances use AWS Graviton2 processors with 64-bit Arm architecture.
* C7g instances use 3rd gen AMD EPYC processors with 64-bit x86 architecture.

This means you can't simply stop a T3 instance and change to C7g.

compatibility between t3.medium and c7g.xlarge

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