Billing Overview
RDS is a stable, reliable, and scalable online database service that is built on top of the Apsara Distributed File System and high-performance SSDs. RDS supports the MySQL, SQL Server, and PostgreSQL database engines.
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The relationship between billing item and billing method is as below:
| Billing Item | Description | Billing Method |
|---|---|---|
| Main Instance Type | Charged based on the instance type. The instance type determines the number of vCPUs and the size of memory of the PostgreSQL main instance. | - Subscription - Pay-as-you-go |
| Read Only Instance Type | Charged based on the instance type. The instance type determines the number of vCPUs and the size of memory of the PostgreSQL read only instance. | - Subscription - Pay-as-you-go |
| Local SSD Storage | Charged based on the Storage capacity. The Storage capacity determines the size of Local SSD. | - Subscription - Pay-as-you-go |