This topic describes the billable items, billing methods, and pricing of ApsaraDB RDS.

Billable items

Billable item Billing method and pricing
Primary ApsaraDB RDS instance types You are charged for the instance type that you select.
  • The subscription and pay-as-you-go billing methods are supported. For more information about the billing methods, see Billing methods.
  • The pricing of an RDS instance varies based on the instance configuration, such as the region, instance type, and storage capacity that you select. For more information, visit the ApsaraDB RDS buy page.
Storage capacity You are charged for the storage capacity that you purchase for the primary, secondary, read-only, and disaster recovery RDS instances in your database system.
  • The subscription and pay-as-you-go billing methods are supported.
  • The pricing of storage capacity varies based on the storage type that you select. For more information, visit the ApsaraDB RDS buy page.
(Optional) Read-only instance You are charged for the instance type that you select.
  • The subscription and pay-as-you-go billing methods are supported.
  • For more information about the pricing of a read-only RDS instance, visit the ApsaraDB RDS buy page.
(Optional) Cloned instance The pricing of a cloned RDS instance is the same as the pricing of a new primary RDS instance. For more information, visit the ApsaraDB RDS buy page.
(Optional) Backup storage You are charged for the backup storage that is occupied by your backup files.
If the cross-region backup feature is enabled for your RDS instance, you are charged for this feature. For more information, see Enable cross-region backups for an ApsaraDB RDS for MySQL instance.
  • Perform cross-region backups in the ApsaraDB RDS console
  • Perform cross-region backups in the Database Backup (DBS) console

    If you want to store cross-region backup files in the built-in storage of DBS, you are charged for the storage that you use in DBS. For more information, see Billing overview.

(Optional) Performance monitoring You are charged for the performance monitoring feature for specific RDS instances.
If your RDS instance runs SQL Server or MariaDB TX, you are not charged for the performance monitoring feature. If your RDS instance runs MySQL or PostgreSQL, you are charged for the performance monitoring feature based on the following rules:
  • If you select the 60-second or 300-second monitoring frequency, you are not charged for the feature. If you select the 5-second monitoring frequency, you are charged an hourly fee for the feature based on the pay-as-you-go billing method.
  • The pricing of the performance monitoring feature is USD 0.012 per hour.

The enhanced monitoring feature is supported for ApsaraDB RDS for PostgreSQL instances. This feature provides more OS metrics and database metrics and supports more monitoring frequencies than the standard monitoring feature. This feature is free of charge for all monitoring frequencies that are supported. For more information, see View the Enhanced Monitoring metrics of an ApsaraDB RDS for PostgreSQL instance.

(Optional) SQL Explorer (SQL Audit) You are charged for the SQL Explorer (SQL Audit) feature.
Note If your RDS instance runs MySQL on RDS Enterprise Edition, you are not charged for the SQL Explorer feature.
(Optional) Database proxy You are charged for the database proxy feature.
Note The database proxy feature is supported only for ApsaraDB RDS for MySQL instances.
  • By default, the database proxy feature is disabled. You are not charged when the feature is disabled. If you enable the database proxy feature, you are charged an hourly fee for the feature based on the pay-as-you-go billing method.
  • For more information about the pricing of the database proxy feature, see Billing rules for the dedicated proxy feature.
(Optional) Scale-up
Note Scale-up is supported only for ApsaraDB RDS for MySQL instances.
(Optional) Internet traffic If you apply for a public endpoint for your RDS instance and use the public endpoint to connect to your RDS instance, Internet traffic is consumed.

You are not charged for the inbound or outbound Internet traffic that you consume to connect to your RDS instance.

Billing methods

The following table describes the billing methods that are supported by ApsaraDB RDS.

Billing method Description
Subscription
Pay-as-you-go
  • A pay-as-you-go instance is an instance for which you are charged per hour based on your resource usage. The hourly fee is calculated based on the instance type that you specify in the purchase order and is deducted from the balance of your Alibaba Cloud account.
  • We recommend that you select the pay-as-you-go billing method for short-term use. If you no longer need a pay-as-you-go instance, you can release the instance to reduce costs.
  • You can change the billing method of an RDS instance from pay-as-you-go to subscription. For information, see Change the billing method of an ApsaraDB RDS for MySQL instance from pay-as-you-go to subscription.

Spending details

For more information about how to view the spending details of an RDS instance, see View the spending details of an ApsaraDB RDS instance. The details include the costs and resource usage that are categorized based on billable items, such as the instance type, performance monitoring, and SQL Explorer (SQL Audit).

FAQ

  • Why am I charged additional fees for a subscription RDS instance?

    The fee that you pay when you purchase a subscription RDS instance covers the instance type and the storage capacity that you select. If you create read-only RDS instances, enable the SQL Explorer (SQL Audit) feature or the performance monitoring feature, or consume more storage than the free quota on backup storage, you are charged additional fees. For more information, see Billable items.

  • Am I charged for my pay-as-you-go RDS instance if I do not use the instance?

    Yes, you are charged an hourly fee for every pay-as-you-go RDS instance that you create even if you do not use these instances. These instances consume computing resources and storage resources even if you do not use these instances. If you do not intend to use a pay-as-you-go RDS instance for a long period of time, we recommend that you save the data that you require and release the RDS instance.

  • Am I charged for the inbound and outbound Internet traffic that I consume for my pay-as-you-go RDS instances and subscription RDS instances? What is the quota of the bandwidth plan that is provided for an RDS instance?

    You are not charged for the inbound or outbound Internet traffic that you consume for your pay-as-you-go RDS instances and subscription RDS instances. The bandwidth of an RDS instance is not limited.