This topic describes how to manage single-zone instances.
Create an instance
To create a PolarDB-X instance, select Single-zone for Deployment topology. For detailed steps, see Create an instance.
View instance
After purchasing an instance, you can view its availability zone information on the instance list and instance details pages.
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Instance list
On the instance list page, find the instance's availability zone in the Availability zone column.
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Instance details
On the instance details page, view the availability zone information.
The instance's availability zone is displayed in the Availability zone field of the Basic information section. In the Topology information section, the availability zone of each compute node is shown in the Availability zone column of the compute node list.
FAQ
Q: If I create a single-zone instance, can I upgrade it to a three-zone deployment for disaster recovery without service interruption?
A: Yes. You can upgrade a single-zone instance to a three-zone deployment online. For details, see Change from a single-zone to a three-zone deployment.
In the Actions column of the instance list, click Migrate availability zone. In the dialog box that appears, set Deployment method to Three-zone. Specify the Primary node AZ, Secondary node AZ, and Logger node AZ. Select the VPC and VSwitch, set Switchover mode to Switch Immediately or Switch Within Maintenance Window, and click OK.