Open the auto scaling console and click Scaling Group in the left sidebar.
Selecting Region
At the top of the console, select the region you wish to create.
Definition Information
Click Create and define the attributes of the scaling group:
- Scaling Group Name: Used to mark this scaling group. For example, Website Logic Tier.
- Min Capacity: Specify the minimum number of instances in the scaling group.
- Intial Capacity: Specify the number of instances when the scaling group starts Automatic production. After a scaling group is created, a corresponding number of instances are generated.
- Max Capacity: Specify the maximum number of instances in the scaling group.
- Launch Configuration: Specifies the created startup configuration. When scaling-out, the machine will be scaled-out according to the startup configuration.
- Supported Networks: Selects the network attributes of the scaled-out machine, that is, whether the scaled-out machine is in the basic network or in a VPC. Unless your cluster already uses VPC, you can select Basic Network.
- Support Subnet: You can select multiple subnets, and the automatically scaled-out machines are randomly created from the subnets you checked, achieving cross-subnet disaster recovery.
- Removal Policy: When the scaling group needs to reduce instances and has multiple options, the CVM is removed based on the removal policy. Generally, just select Remove the Oldest Machine.
- CLB: If you specify a CLB, the scaled-out machines are automatically mounted to the CLB.
The scaling group is now created. At this point, the scaling group can accommodate machines, but it does not yet have the capability for intelligent scaling. Next, we strongly recommend you to proceed with the following three actions: - Join an existing CVM;
- Creating a scaling policy;
- Create a notification.