Help Center/ GeminiDB/ GeminiDB Cassandra API/ Billing/ Billing Mode Changes/ Changing a Yearly/Monthly Instance to Pay-per-Use
Updated on 2026-05-08 GMT+08:00
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Changing a Yearly/Monthly Instance to Pay-per-Use

After creating a yearly/monthly GeminiDB Cassandra instance, you can change it to pay-per-use billing for greater flexibility and receive a partial refund for the unused subscription period.

You can change the billing mode from yearly/monthly to pay-per-use in either of the following ways:

  • Immediate change: The remaining fee for the current billing cycle is refunded. Once the refund is processed, the billing mode is immediately changed to pay-per-use and auto-renewal is disabled.
  • Upon expiration: When the yearly/monthly subscription ends, the billing mode is automatically changed to pay-per-use and auto-renewal is disabled.

Constraints

Resources such as EIPs that are used by an instance may not support the change with this instance. For details about their billing mode change rules and handling methods, see Table 1.

Table 1 EIP billing mode change rules

Resource

Billing Mode

Billed By

Bandwidth Type

Change to Pay-per-Use Billing with the GeminiDB Cassandra Instance

Handling Measure

EIP

Yearly/Monthly

Bandwidth

Dedicated

Not supported

Change the EIP to yearly/monthly billing on the EIP console.

For details, see Changing EIP Billing Mode.

EIP

Yearly/Monthly

Traffic

Dedicated

Not supported

An EIP billed on a yearly/monthly basis cannot be directly changed to be billed by traffic on a pay-per-use basis. To change this:

  1. Change the EIP to be billed by bandwidth on a pay-per-use basis.
  2. Change the EIP to be billed by traffic on a pay-per-use basis.

For details, see Changing EIP Billing Mode.

Procedure

  1. Log in to the GeminiDB console.
  2. On the Instances page, locate the target instance and choose More > Change to Pay-per-Use in the Operation column.

    Figure 1 Change to Pay-per-Use

    The billing mode of multiple pay-per-use instances can be changed in batches. Perform the following steps:

    1. Select the instances whose billing mode you want to change.
    2. Click More > Change to Pay-per-Use in the Operation column

  3. In the displayed dialog box, select Apply when the subscription expires or Apply immediately for When to Apply the Change, enter YES, and click OK.
  4. On the displayed page, confirm the billing information and submit the request.
  5. View the result on the Instances page.

    In the upper right corner of the instance list, click to refresh the list. After the change is complete, the instance status changes to Available and the billing mode changes to Pay-per-use.

Parent Topic: Billing Mode Changes