可以从旧的 T2 实例切换到 T3 或 T3A 实例!

从旧的 T2 实例切换到 T3 或 T3A 实例将降低成本 7% 自 12%.

正式:

if you have an old T2 instance you cannot switch to a T3 or T3A instance without a migration

AWS Documentation

that is: 创建一个新实例并将数据迁移到那里. This is a real headache for the server configuration and settings. Trying to do so usually result in the following error:

Error launching source instance: InvalidParameterCombination: Enhanced networking with the Elastic Network Adapter (ENA) is required for the ‘t3.large’ instance type. Ensure that you are using an AMI that is enabled for ENA.

However we have found out a way to patch any T2 instance AMI and convert it to a T3 or T3A instance. It will work with any instance running CentOS (including WHM®/cPanel®). Contact us if you need such job done! A flat fee per instance will apply.