Help Center/ Cloud Bastion Host/ User Guide/ Managing Instances/ Changing an Instance from Single-Node to Primary/Standby Deployment
Updated on 2026-08-11 GMT+08:00

Changing an Instance from Single-Node to Primary/Standby Deployment

Scenarios

This section describes how to change an instance from single-node to primary/standby.

Notes and Constraints

  • A standard edition single-node instance that supports 200 or more assets cannot be converted into a primary/standby instance.
  • Only CBH instances of the latest edition can be changed from single-node to primary/standby deployment. You can upgrade the instance edition if needed by referring to Upgrading the Instance Version.

Changing an Instance from Single-Node to Primary/Standby

  1. Log in to the CBH console.
  2. Click in the upper left corner on the displayed page and select a region.
  3. Locate the row containing the target instance. In the Operation column, choose More > Change to Primary/Standby.
  4. In the New Configuration area, select the standby AZ, confirm the configuration, and click Pay.
  5. Complete the payment.
  6. On the CBH instance list page, the instance status changes from Running to Creating the standby instance > Configuring HA > Running in sequence.

    When the CBH instance status changes to Running, the CBH system is available.