RDS Instance Multi-AZ Deployment

ID: rule:aliyun:rds-multi-az-support
Severity: medium
IaC Types: ROS, Terraform

Description

RDS instances should be deployed in multi-AZ configuration for high availability and automatic failover.

Reason for Violation

The RDS instance is not deployed in multi-AZ configuration, which may affect availability during zone failures.

Recommendation

Enable multi-AZ deployment by setting MultiAZ to true when creating the instance.

Resource Types

• ROS: ALIYUN::RDS::DBInstance
• Terraform: alicloud_db_instance