This topic provides answers to some frequently asked questions about Classic Load Balancer (CLB) instances.

Can I change a shared-resource CLB instance to a high-performance CLB instance?

Yes, you can change a shared-resource CLB instance to a high-performance CLB instance.

  • You can change only shared-resource CLB instances to high-performance CLB instances. You cannot change high-performance CLB instances to shared-resource CLB instances.
  • After you change a shared-resource CLB instance to a high-performance CLB instance, you are charged a specification fee.

What are the specifications of shared-resource CLB instances?

The performance of shared-resource CLB instances is not guaranteed. Therefore, you cannot specify the specification of a shared-resource CLB instance.

How do I choose between different specifications for a high-performance CLB instance?

  • You can select the highest specification if your high-performance CLB instance is billed on a pay-as-you-go basis. Pay-as-you-go CLB instances are billed based on the actual resource usage.

Can I change the specification of a high-performance CLB instance?

Yes, you can change the specification of a high-performance CLB instance.
Note
  • You can change only shared-resource CLB instances to high-performance CLB instances. You cannot change high-performance CLB instances to shared-resource CLB instances.
  • Changing a shared-resource CLB instance to a high-performance CLB instance does not negatively affect your workloads, or change the IP address of the CLB instance.
    Note However, we recommend that you change a shared-resource CLB instance to a high-performance CLB instance during off-peak hours. You can also configure DNS resolution to replace your current load balancing service before you change the CLB instance.