Concepts

What Is SAP Application AS?
SAP application auto scaling (AS) automatically increases or decreases the number of Additional Application Servers (AASs) as needed depending on your SAP service requirements. You can specify AS configurations and policies based on service requirements. These configurations and policies free you from having to repeatedly adjust resources to keep up with service changes and demand spikes, helping you reduce the resources and manpower required.
AS Group
An AS group consists of a collection of instances that apply to the same scenario. It is the basis for enabling or disabling AS policies and performing scaling actions.
AS Configuration
An AS configuration is an ECS instance template in the AS group, specifying specifications of the ECS to be added, including the ECS flavor, vCPU, memory, image, disk, and login mode.
Scaling Actions
A scaling action adds or removes instances to or from an AS group so that the number of instances in the AS group is the same as the expected number for proper service running.
Region and AZ