AWS services or capabilities described in AWS documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with AWS services in China.

Configuring instance tiers

AWS Systems Manager offers a standard-instances tier and an advanced-instances tier for servers and VMs in your hybrid environment. The standard-instances tier enables you to register a maximum of 1,000 on-premises servers or VMs per AWS account per AWS Region. If you need to register more than 1,000 on-premises servers or VMs in a single account and Region, then use the advanced-instances tier. You can activate as many managed instances in a hybrid environment as you like in the advanced-instances tier. However, all instances configured for Systems Manager using the managed-instance activation process described in Create a managed-instance activation for a hybrid environment are made available on a pay-per-use basis. This also applies to Amazon Elastic Compute Cloud (Amazon EC2) instances that use a Systems Manager on-premises activation (which isn't a common scenario).

As long as your AWS account and Region has fewer than 1,000 on-premises instances in your hybrid environment, you can revert back to the standard-instances tier at any time.