How Do I Upgrade or Downgrade the Specifications of an ECS and Do I Need to Stop the ECS?

If the specifications of an existing ECS cannot meet service requirements, modify the ECS specifications as needed, for example, upgrading the vCPUs and memory.

To do so, switch to the list view on the Elastic Cloud Server page, locate the row containing the target ECS and choose More > Modify Specifications in the Operation column.

The ECS needs to be stopped during the the specification modification, so you are advised to perform this operation during off-peak hours.

Specification modifications include specification upgrade and downgrade.

• For pay-per-use ECSs, the specifications upgrade and downgrade take effect immediately. You are billed based on the new specifications.
• For yearly/monthly ECSs:
  • Specifications upgrade: The price of the new specifications is higher than that of the current one. You need to pay for the price difference for the upgrade to take effect.
  • Specifications downgrade: The price of the new specifications is lower than that of the current one. You'll get a refund from Huawei Cloud.

  For details, see Pricing of a Changed Specification.