Help Center/ Auto Scaling/ User Guide/ AS Configuration/ Creating an AS Configuration
Updated on 2025-10-27 GMT+08:00
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Creating an AS Configuration

An AS configuration defines the specifications of the ECS instances to be added to an AS group. The specifications include the ECS image and system disk size.

  • An AS configuration that is not bound to an AS group cannot be modified. You can create an AS configuration after deleting or by copying an existing one.
  • AS configurations that have been bound to an AS group can be modified. To modify an AS configuration, locate the target AS group on the Instance Scaling and choose More > Modify AS Configuration in the Operation column.

Scenarios

  • When you create an AS group, create an AS configuration or use an existing AS configuration.
  • Create the required AS configuration on the Instance Scaling page.
  • Change the AS configuration on the AS group details page.

Methods

  • Create an AS configuration from an existing ECS instance.

    If you create an AS configuration from an existing ECS instance, the vCPU, memory, image, disk, and ECS type are the same as those of the selected ECS instance by default. For details, see Creating an AS Configuration from an Existing ECS.

  • Create an AS configuration from a new specifications template.

    If you have special requirements on the ECS instances used for scaling out, use a new specifications template to create the AS configuration. For details, see Creating an AS Configuration from Scratch.

Parent topic: AS Configuration