Change the performance level of an ESSD - - Alibaba Cloud Documentation Center

ESSDs (Enterprise SSDs) offer four performance levels (PLs): PL0, PL1, PL2, and PL3 to suit various application requirements. You can adjust the performance level of an ESSD as your workload changes to balance performance and cost.

Background information

For the performance specifications of each ESSD performance level, see ESSD overview.

Prerequisites

The ESSD must be in the In Use or Pending state.
If the ESSD is attached to an RDS Custom instance, the instance must be in the Running or Suspended state. The RDS Custom instance cannot be in the Expired state, and you must not have any overdue payments.

Limits

You can upgrade or downgrade the performance level of an ESSD, but you cannot downgrade an ESSD to PL0.
An ESSD's available performance levels depend on its capacity. If a higher performance level is unavailable, you may need to first increase the disk capacity. For the minimum capacity requirements of each performance level, see ESSD specifications.

Billing

After you change the performance level of an ESSD, you are charged based on the pricing of the new performance level. Change the performance level only when necessary to meet your business needs.

Procedure

Log on to the ApsaraDB RDS console.
Choose one of the following methods to change the performance level of an ESSD.
- For an attached ESSD:
  1. In the navigation pane on the left, choose RDS Custom > Custom Instances. At the top of the page, select a region.
  2. Click the target instance to open its details page.
  3. In the navigation pane on the left, click Storage Information.
  4. Find the target disk and in the Actions column, click > Change Performance Level.
- For a specific ESSD:
  1. In the navigation pane on the left, choose RDS Custom > Storage and Snapshots. At the top of the page, select a region.
  2. In the Actions column of the target disk, click > Change Performance Level.
    On the Basic Information page of the disk, you can also click Change Performance Level.
On the page that appears, select the target Storage Type (performance level).

Note
An ESSD's available performance levels depend on its capacity. If a higher performance level is unavailable, you may need to first increase the disk capacity. For the minimum capacity requirements of each performance level, see ESSD specifications.
Read the notes, select the terms of service and service level agreement, and click Buy Now.

Related APIs

ModifyRCDiskSpec: Changes the disk type or performance level.

:Change the performance level of an ESSD