Help Center/ Huawei Cloud Flexus_Huawei Cloud Flexus X Instance/ FAQs/ Specification Modification FAQ/ What Is Live Change?
Updated on 2025-09-18 GMT+08:00
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What Is Live Change?

Live change is only supported by the Huawei Cloud EulerOS 2.0 image. It allows you to upgrade the vCPU or memory specifications of FlexusX instances without stopping the instances. After the upgrade is complete, you can use the new specifications without interrupting services.

The live change function is in the open beta testing (OBT) phase. Apply for the function as needed by submitting a service ticket.

Live change has the following constraints:

  • Live change is only supported by FlexusX instances that use the Huawei Cloud EulerOS 2.0 image.
  • The vCPUs and memory can only be upgraded. They cannot be downgraded.
  • Live change is supported only between FlexusX instance specifications.
  • Live change is supported only when the current and new specifications both support live change.
  • Memory can be lively changed for a maximum of 12 times.
  • Batch live changes are not supported.