If the current pay-as-you-go or subscription billing method for your RDS Custom instance no longer meets your needs, you can change it by following the instructions in this topic.
Prerequisites
The RDS Custom instance is in the Running or Suspended status.
Impacts
Changing the billing method does not affect the instance's operation.
Scenarios
RDS Custom instance | Cloud disk attached to the instance | Result |
Pay-as-you-go Important A subscription cloud disk can be attached only to a subscription instance. It cannot be attached to a pay-as-you-go instance. | The billing methods of both the instance and the cloud disk are changed to subscription. | |
Subscription | The billing methods of both the instance and the cloud disk are changed to pay-as-you-go. | |
Pay-as-you-go |
| |
Both subscription and pay-as-you-go |
|
Change from pay-as-you-go to subscription
Usage notes
If an instance has an unpaid order to change its billing method to subscription, you must pay for or cancel the order on the Order Management page before you can change the billing method.
When you change the billing method from pay-as-you-go to subscription, if the change spans across the hour, the instance is billed on a pay-as-you-go basis for the hour in which the change is initiated. After the top of the hour, the instance is billed on a subscription basis.
For example, you start to change the billing method of an instance from pay-as-you-go to subscription at 09:55. The billing method is officially changed to subscription at 10:10. The instance is billed on a pay-as-you-go basis for the 09:00 to 10:00 period and on a subscription basis after 10:00.
NotePay-as-you-go instances are billed hourly. Bill generation may be delayed. You can check the bill later.
We recommend that you change the billing method 15 to 30 minutes before the top of the hour.
Procedure
Log on to the RDS console. In the navigation pane on the left, choose RDS Custom > Instances. Then, select a region.
In the Actions column of the target instance, choose .
Alternatively, go to the Basic Information page of the instance and click Change To Subscription next to Billing Method.
Select a Subscription Duration and click Confirm Order.
NoteThe system generates an order to change the billing method to subscription. If this order is not paid or is canceled, you cannot purchase new instances or change the billing method of an existing instance to subscription. You can pay for or cancel the order on the Order Management page.
Complete the payment as prompted.
Change from subscription to pay-as-you-go
Usage notes
Only the amount that you paid is refunded to the original payment method. Used coupons are not refunded. For more information about how refunds are calculated, see Refund rules for changing the billing method from subscription to pay-as-you-go.
Procedure
Log on to the RDS console. In the navigation pane on the left, choose RDS Custom > Instances. Then, select a region.
In the Actions column of the target instance, choose .
Alternatively, go to the Basic Information page of the instance and click Enable Change To Pay-As-You-Go next to Billing Method.
Confirm the instance information and click Pay to complete the change.
Related API operations
ModifyRCInstanceChargeType: Changes the billing method of an RDS Custom instance or a cloud disk.
References
If the pay-as-you-go or subscription billing method of a cloud disk attached to your instance no longer meets your needs, you can change the billing method of the cloud disk.
For more information about RDS Custom, see Introduction to RDS Custom.