Overview

The dual-computer high-availability version adopts “One Master Node, One Backup Node” high-availability architecture to monitor faults in a real-time manner and realizes automated migration. It supports various types of product lines like proxy instance, read-only instance, cross-region hot active instance group, and data migration. Thus, it meets requirements, such as read/write Separation and remote disaster recovery.

Architecture Diagram

Dual-Computer High-Availability Version is composed of one master node and one backup node.

Applicable Scenarios

Dual-Computer High-Availability Version is applicable to databases of official service scenarios like Internet, game, and E-commerce, etc. Promised service availability is not lower than 99.95%, and data persistence is not lower than 99.9999%.

Supported Database Engine

• MySQL 5.5, 5.6 and 5.7
• SQL Server 2008R2, 2012 Enterprise Edition, and 2016 Enterprise Edition
• PostgreSQL 9.4, 9.5, and 10

Supported Regions

North China-Beijing, North China -Baoding, East China-Suzhou, South China-Guangzhou, Financial Central China-Wuhan, Hong Kong, Singapore.

Notes

Instructions on Dual-Computer High-Availability version master instance:

• The dual-Computer high-Availability version of the master instance supports both prepaid and postpaid modes.
• The dual-Computer high-Availability version of the master instance supports configuration change.

Getting Started

You can learn about the application of the RDS instance via Getting Started. For details, see Getting Started.