Adding Backend Servers

Scenario

When you use ELB to route traffic to backend servers, you need to ensure that at least one backend server is running properly and can receive requests from the associated load balancer.

If the incoming traffic increases, you can add more backend servers to ensure the stability and reliability of applications and eliminate SPOFs. If the incoming traffic decreases, you can remove some backend servers to reduce the cost.

Constraints and Limitations

• The cloud servers must be in the same VPC as the backend server group.

Procedure

1. Log in to the management console.
2. In the upper left corner of the page, click and select the desired region and project.
3. Hover on in the upper left corner to display Service List and choose Network > Elastic Load Balance.
4. In the navigation pane on the left, choose Elastic Load Balance > Backend Server Groups.
5. On the Backend Server Groups page, click the name of the backend server group.
6. Switch to the Backend Servers tab page and click Add on the right.
7. You can search for backend servers using specified keywords.

   Select the backend servers you want to add and click Next.

8. Specify the weights and ports for the backend servers, and click Finish.

   Backend server ports can be set in batches.