Modifying an AS Group

Scenarios

You can modify an AS group as needed. The values of the following parameters can be changed: Name, Max. Instances, Min. Instances, Expected Instances, Health Check Method, Health Check Interval, Instance Removal Policy.

Changing the value of Expected Instances will trigger a scaling action. Then, AS automatically increases or decreases the number of instances to the value of Expected Instances.

If the AS group is not enabled, contains no instance, and has no scaling action ongoing, you can modify Subnet configurations. If an AS group has no scaling action ongoing, you can modify its AZ and ELB configurations.

Procedure

1. Log in to the management console.
2. Under Computing, click Auto Scaling. In the navigation pane on the left, choose Instance Scaling. Then click the AS Groups tab.

3. In the AS group list, locate the row containing the target AS group, click the AS group name to switch to the Basic Information page, and click Modify in the upper right corner.

   You can also locate the row containing the target AS group and choose More > Modify in the Operation column.

4. In the Modify AS Group dialog box, modify related data, for example, the expected number of instances.
5. Click OK.