This topic describes the costs incurred when you change the configuration of a pay-as-you-go or subscription ApsaraDB for MongoDB instance.

Pricing

For more information, see Pricing.

Pay-as-you-go instances

The minimum charging period for a pay-as-you-go instance is one hour. After the configuration of an instance is changed, you are charged at the price of the new configuration.

Subscription instances

Configuration change Description
Upgrade immediately

Payment = Total fees of the new configuration for the remaining subscription period (Monthly price of the new configuration/30/24 × Unused hours) - Total fees of the original configuration for the remaining subscription period (Monthly price of the original configuration/30/24 × Unused hours).

Example: The monthly price of the new configuration is CNY 14,400. The monthly price of the original configuration is CNY 7,200. The remaining subscription period is 50 days. The payment is calculated as follows: (14,400/30/24 × 50 × 24) - (7,200/30/24 × 50 × 24) = CNY 12,000.

Downgrade immediately

Refund = Total fees of the original configuration for the remaining subscription period (Monthly price of the original configuration/30/24 × Unused hours) - Total fees of the new configuration for the remaining subscription period (Monthly price of the new configuration/30/24 × Unused hours).

Example: You subscribed to a cluster for three months, during which the original configuration charged CNY 3,500. You paid CNY 3,000 after using coupons. After two months, the total fees of the original configuration for the remaining month are CNY 1,000. The total fees of the new configuration for a month are CNY 800. The refund is calculated as follows: 1000 - 800 = CNY 200.

Note You can be refunded for downgrading the configuration of a subscription instance, but cannot be refunded for the entire instance. If you need to be refunded for the entire instance, submit a ticket to make an application.
Note

If you upgrade the configuration of an instance and then downgrade the configuration, you may get fewer refunds in the following two scenarios:

  • You used discounts in the upgrade order. For example, you subscribed to the cluster for a year at a 15% discount, which means you only need to pay CNY 850 to enjoy CNY 1,000 worth of service. Then, a refund for downgrading the configuration is calculated based on CNY 850.
  • You used coupons in the upgrade order. When you downgrade the configuration of the instance, the refund of the original configuration is calculated based on the cash you paid, excluding the amount deducted by coupons. However, when you upgrade the configuration of the instance, the fees of the original configuration are calculated based on the unit price of the original configuration, including the amount deducted by coupons.

References

Configuration change overview