ApsaraDB for RDS offers four editions: Basic Edition, High-availability Edition, Cluster Edition, and Enterprise Edition. This topic describes how to view the edition of an RDS instance and provides a comparison between various editions.

For more information about the instance families that are supported by each edition, see Instance families.

View the edition of an RDS instance

Log on to the ApsaraDB for RDS console, find the target RDS instance, and navigate to the Basic Information page. Then, you can view the edition of the RDS instance.

Comparison between various editions

Edition Description Scenario
Basic Edition Your database system consists of only one primary instance, and computing is separated from storage. This edition is cost-effective.

For more information, see Basic Edition.

  • Personal learning
  • Small-sized websites
  • Development and test environments for small- and medium-sized enterprises
High-availability Edition Your database system consists of one primary instance and one secondary instance. These instances work in the high-availability architecture. This edition is suitable for more than 80% of the actual business scenarios.
  • Production databases for large- and medium-sized enterprises
  • Databases in industries such as the Internet, Internet of Things (IoT), online retail, logistics, and gaming
Cluster Edition Your database system consists of one primary instance, one secondary instance, and up to seven read-only instances that are used to increase the read capability. This edition is developed based on the AlwaysOn technology. It is supported only for SQL Server. By default, when you purchase the Cluster Edition, your database system consists of only a primary instance and a secondary instance. You must purchase read-only instances later based on your business requirements.

For more information, see Cluster Edition (AlwaysOn Edition).

Production databases for large- and medium-sized enterprises, such as online retailers, automobile companies, and ERP providers
Enterprise Edition Your database system consists of one primary instance and two secondary instances. Data is synchronously replicated from the primary instance to the secondary instances. This allows you to ensure data consistency and finance-level reliability.

For more information, see Enterprise Edition.

  • Important databases in the finance, securities, and insurance industries that require high data security
  • Important production databases for large-sized enterprises

Features supported by various editions

Features