Modify ESSD performance level - Elastic Compute Service - Alibaba Cloud Documentation Center

Upgrade or downgrade an ESSD's performance level (PL0–PL3) to balance performance and cost.

For performance specifications of each ESSD performance level, see Block storage performance.

Limitations

The following limitations apply when you modify an ESSD's performance level:

Status
- ESSD is in the In Use or Unattached state.
- If attached to an ECS instance, the instance must be in the Running or Stopped state, not in the Expired state, and your account must not have overdue payments.
Performance level
- Subscription ESSDs support upgrade only.
- Pay-as-you-go ESSDs support upgrade and downgrade, except downgrade to PL0.
  
  Note
  Only an Ultra Disk can be changed to an ESSD PL0. See Change the category of a disk.
- Available performance levels depend on disk capacity. If a higher level is unavailable, resize the disk first.

Billing

After you upgrade an ESSD's performance level, you are charged based on the new level's price. Modify the performance level based on your business requirements. See Block storage billing.

ESSD prices vary by performance level. See the Elastic Compute Service Pricing page.

Procedure

Go to ECS console - Block Storage - Disks.
In the upper-left corner of the page, select a region and resource group.
Find the target ESSD. In the Actions column, select Change Performance Level.
In the Change Performance Level dialog box, select a new The performance level and click OK.