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ApsaraDB RDS:Billing overview

Last Updated:Apr 08, 2024

This topic provides an overview of the billing methods and billable items of ApsaraDB RDS.

Billing rules

Subscription

Pay-as-you-go

Serverless

  • Definition: A serverless RDS instance is not billed based on instance types, but based on the actual amount of resources used each hour. Resources are measured in RDS Capacity Units (RCUs). For more information, see Overview of serverless ApsaraDB RDS for MySQL instances, Overview of serverless ApsaraDB RDS for SQL Server instances, and Overview of serverless ApsaraDB RDS for PostgreSQL instances.

  • Scenarios: You have intermittent or unpredictable workloads.

  • Billing method change: You cannot change the billing method of a serverless RDS instance.

  • Specification changes: The specifications of a serverless RDS instance cannot be manually changed. During the use of the instance, the system automatically scales the RCUs to suit your workloads.

  • If your Alibaba Cloud account has overdue payments, RDS instances that do not use the subscription billing method and belong to your Alibaba Cloud account become overdue. For more information, see Overdue payments.

Basic billable items

The basic fee of an RDS instance consists of the fee for computing resources and the fee for storage resources.

Billing of computing resources

Billable item

Description

Billing method

Instance type

You are charged based on the instance type. The instance type determines the number of CPU cores and the memory capacity that are provisioned.

  • Subscription

  • Pay-as-you-go

RCU

RCUs are the computing resources of serverless RDS instances. The performance of an RCU is equivalent to that of an RDS instance that runs RDS Basic Edition and has 2 GB of memory.

Serverless

Billing of storage resources

Billable item

Description

Billing method

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 price varies based on the storage type that you select. For more information, visit the ApsaraDB RDS buy page.

  • Subscription

  • Pay-as-you-go

Note
  • In addition to the preceding types of billable items, ApsaraDB RDS also provides value-added options. For more information, see Billable items, billing methods, and pricing.

  • Price inquiry: Go to the ApsaraDB RDS buy page. Configure the basic parameters, and then check the price and applied discounts in the lower-right corner of the page.

    If you set the Billing Method parameter to Subscription, you must configure the Subscription Duration parameter. Longer subscription durations provide more savings.

Billing details

If you want to view the billing details of an RDS instance, follow the instructions provided in View your bills. The details describe the costs categorized by different billable items, such as instance type, performance monitoring, and SQL audit.