This topic describes pricing, billing items, and billing methods about ApsaraDB for RDS.

Pricing

You can click the following instance types to view the corresponding pricing details:

Billing items

Billing item Description
Instance Primary instances are charged. A primary instance is billed based on pay-as-you-go or subscription. For more information about the billing methods, see Billing methods.
Storage space The storage space used by a primary instance is charged. The storage space is charged using the same billing method as your primary instance, which can be pay-as-you-go or subscription.
Read-only instance (optional) Read-only instances are charged. A read-only instance is charged on an hourly basis. The hourly rate varies depending on the specification of the read-only instance.
Cloned instance (optional) A cloned instance is charged under the same pricing standards as a newly purchased primary instance.
Backup space (optional) ApsaraDB for RDS offers a free tier of storage space for data backups and binary log backups. If your usage exceeds the free tier, the exceeded storage space is charged on an hourly basis. For more information, see View the quota of free backup space for an ApsaraDB RDS MySQL instance.
Performance monitoring (optional)
  • Free-of-charge features: update monitoring data with a frequency of every 60 or 300 seconds.
  • Charged features: update monitoring data with a frequency of every 5 seconds. Billing method: Pay-As-You-Go.
SQL Explorer (SQL audit) SQL Explorer (SQL audit) is disabled by default. No fee is charged. After you enable SQL Explorer, this feature is charged on an hourly basis.

Hourly rate = Amount of consumed SQL audit log data × Unit price.

Note SQL Explorer is free of charge in ApsaraDB for RDS Enterprise.
Dedicated proxy(optional) The dedicated proxy service is disabled by default. No fee is charged. After you enable the dedicated proxy service, it is charged on an hourly basis.

Billing method: pay-as-you-go.

Billing methods

ApsaraDB for RDS supports the following billing methods.

Billing method Description
Subscription
  • You must make an upfront payment when you create a subscription instance.
  • Subscription instances are suitable for long-term commitments because they are more cost-effective than pay-as-you-go instances. You receive larger discounts for a longer subscription period.
  • You cannot release a subscription instance before the subscription ends.
  • You cannot switch the billing method of an instance from subscription to pay-as-you-go.
Pay-as-you-go
  • A pay-as-you-go instance is charged based on the actual usage. Bill statements are generated on an hourly basis, and fees are deducted from the balance of your Alibaba Cloud account.
  • Pay-as-you-go instances are suitable for short-term commitments. You can release a pay-as-you-go instances after it finishes serving its purposes.
  • You can switch the billing method of an instance from pay-as-you-go to subscription. For more information, see Switch from pay-as-you-go to subscription.

Spending details

For more information about how to view the spending details of an instance, see View spending details. The spending details list the costs categorized by different billing items, such as instance specification, performance monitoring, and SQL Explorer (SQL audit).

FAQ

  • Why are other fees charged in addition to the subscription fees?

    Subscription fees include instance and storage fees. Additional fees are charged if you use read-only instances, SQL Explorer, or the charged performance monitoring feature, or your backup storage exceeds the quota limit. For more information, see Billing items.

  • Is a pay-as-you-go instance still charged when it is idle?

    A pay-as-you-go instance is charged no matter it is running or idle. Fees are charged on an hourly basis for the compute and storage resources that the instance occupies even if it is idle. We recommend that you save the data on idle pay-as-you-go instances with no long-term commitment and then release the instances to save costs.

  • Is the Internet traffic consumed by pay-as-you-go and subscription instances free of charge? Is the inbound and outbound traffic free of charge?

    The Internet traffic consumed by pay-as-you-go and subscription instances is free of charge, including the inbound and outbound traffic.