This topic describes how to change the billing method of a PolarDB cluster from subscription to pay-as-you-go. If you have further questions, join the DingTalk group (ID: 31840035401) for support.
Prerequisites
Your cluster is in the Running state.
Your cluster does not have a temporary upgrade task in progress or scheduled tasks of configuration changes.
Make sure that your account balance is sufficient to prevent service downtime that is caused by overdue payments after you change the billing method of the cluster from subscription to pay-as-you-go.
Usage notes
The billing method of the storage resources in a subscription cluster cannot be changed from subscription to pay-as-you-go.
However, you can change the subscription cluster to a pay-as-you-go cluster in which the storage resources are billed by using the pay-as-you-go method.
The following change rules are applicable:
Enterprise Edition:
If the computing resources of a cluster are billed on a pay-as-you-go basis, the storage resources must be billed on a pay-as-you-go basis. If the computing resources of a cluster are billed on a subscription basis, the storage resources can be billed on a pay-as-you-go or subscription basis.
You can switch the billing method for an entire cluster, but cannot switch the billing method of the storage resources within the cluster separately.
For a pay-as-you-go cluster whose computing resources are billed on a pay-as-you-go basis and whose storage resources are billed on a pay-as-you-go basis, you can switch it to a subscription cluster whose computing resources are billed on a subscription basis and whose storage resources are billed on a pay-as-you-go basis.
For a subscription cluster whose computing resources are billed on a subscription basis and whose storage resources are billed on a subscription basis, you can switch it to a subscription cluster whose computing and storage resources are all billed on a pay-as-you-go basis.
NoteIf you switch the pay-as-you-go billing method of this cluster back to the subscription billing method, both the computing resources and storage resources are are billed on a subscription basis.
For a subscription cluster whose computing resources are billed on a subscription basis and whose storage resources are billed on a pay-as-you-go basis, you can switch it to a pay-as-you-go cluster whose computing and storage resources are all billed on a pay-as-you-go basis.
If your cluster uses the pay-as-you-go billing method for the storage resources, you can purchase storage plans to reduce costs. For more information, see What are storage plans.
Pricing
After you change the billing method of the cluster from subscription to pay-as-you-go, a subscription refund is returned to your original payment account. Note that only the actual paid amount is refunded to the original payment account. Vouchers or coupons that were redeemed cannot be returned.
Impacts
The operations in this topic do not affect the running of the cluster.
Procedure
Log on to the PolarDB console.
In the upper-left corner, select the region where the cluster to which you want to connect is deployed.
Find the cluster for which you want to change the billing method and then choose in the Actions column.
On the Switch to Pay-as-you-go page, confirm the cluster information, select the Terms of Service, and then click Buy Now.
NoteThe new billing method takes effect after you pay for the order.
If the order is unpaid or the payment fails, an unfinished order appears on the Orders page. You cannot purchase additional cluster or change the billing method of the cluster from subscription to pay-as-you-go before you complete the payment. In this case, you need to pay for or cancel the order.