All Products
Search
Document Center

ApsaraDB RDS:Upgrade from Basic Edition to High-availability Edition

Last Updated:Oct 09, 2026

Upgrade your RDS for MySQL 8.4, 8.0, or 5.7 instance from Basic Edition to High-availability Edition for primary/secondary redundancy.

The High-availability Edition uses a primary/secondary architecture suitable for most use cases.

Upgrade fees are described in Change Specifications.

Prerequisites

  • The instance uses the subscription or pay-as-you-go billing method.

    Note

    Serverless instances follow a different procedure. Upgrade from Basic Edition to High-availability Edition (Serverless).

  • The instance runs MySQL 8.4, 8.0, or 5.7 Basic Edition. Verify the edition on the Basic Information page.

  • The minor engine version is 20211231 or later. Upgrade the minor engine version.

    Note

    Not required when upgrading MySQL 5.7 Basic Edition with standard SSDs to High-availability Edition with Premium Local SSDs.

  • The instance must be a primary instance.

Fees

The actual upgrade fee is determined at checkout. For more information about how fees are calculated, see Change instance specifications.

Impacts

  • The upgrade may involve data migration and a switchover at your specified time. Ensure your application supports automatic reconnection. Impacts of an instance switchover.

    Note

    The instance endpoint remains unchanged. No application changes are required.

  • The upgrade is irreversible. You cannot revert to Basic Edition.

Procedure

  1. Go to the Instances page. In the top navigation bar, select the region in which the RDS instance resides. Then, find the RDS instance and click the ID of the instance.

  2. In the Configuration Information section, click Change Configurations.

  3. (For subscription instances only) In the dialog box, select Upgrade and click Next.

  4. Configure the following parameters.

    Parameter

    Description

    Edition

    Select High-availability Edition.

    Storage Type

    Optional. Change the storage type from standard SSD to Premium Local SSD.

    Note

    Available only for MySQL 5.7 Basic Edition instances.

    Switching Time

    Select when to switch over the instance:

    • Switch Immediately After Data Migration

    • Switch Within Maintenance Window

  5. Select the Terms of Service checkbox, click Pay Now, and complete the payment.

API reference

API

Description

ModifyDBInstanceSpec

Changes the specifications of an RDS instance.