is it possible to downgrade c3.large to m3.medium?

Question

I have c3.large reserved instance and want to downgrade it to m3.medium. Is it possible to downgrade without any downtime please advise.

Answer 1

Thanks ! I have collected the information now the right one ! http://aws.amazon.com/ec2/faqs/

• Q: Can I reassign my Reserved instance from one instance type (e.g., c1.xlarge) to another (e.g., m1.large)?
• No. A Reserved instance is associated with a specific instance family for the duration of its term; however, you can change from one instance type (e.g., c3.large) to another (e.g., c3.xlarge) in the same family, if it is a Linux/UNIX Reserved instance