You can remove an instance from an AS group for updating or troubleshooting and then re-add the instance to the AS group. Application traffic will not be distributed to a removed instance. If you select Remove Instances from AS Group , the system only removes the ECSs from the AS group and does not release, delete, or change the ECS status. ECS instances can be used for other purposes. If you select Remove Instances from AS Group and Release Instances , the system removes the ECSs from the AS group and releases them. However, this operation does not take effect on ECSs that are manually added to the AS group. The following conditions must be met to remove an ECS from the specified AS group:

There is no ongoing scaling activity in this AS group.
The scaling instance is Enabled .
The number of instances after the removal cannot be smaller than the minimum number of instances in the AS group.

Operation Steps

Log in to the eSurfing Cloud Console, switch to the node where you want to modify an AS policy, and select AS;
Locate the line of the AS group and click the AS group name. The AS Group Details page is displayed;
On the AS Group Details page, click the AS Instance tab;
On the AS Instance tab page, locate the line of the target instance. In the Operation column, click Remove Instances from AS Group or Remove Instances from AS Group and Release Instances;
To remove all instances, check the box to the left of the Instance Name parameter and click Remove Instances from AS Group or Remove Instances from AS Group and Release Instances .

Auto Scaling

Remove Instances from an AS Group