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PolarDB Cluster Multi-Zone Deployment

ID: rule:aliyun:polardb-cluster-multi-zone
Severity: medium
IaC Types: ROS, Terraform

Description​

PolarDB clusters should be deployed across multiple availability zones for high availability.

Reason for Violation​

The PolarDB cluster is not configured with a multi-zone deployment (zone_id does not indicate MAZ).

Recommendation​

Set zone_id to a Multi-AZ zone ID (containing 'MAZ') to enable multi-zone deployment.

Resource Types​

  • ROS: ALIYUN::POLARDB::DBCluster
  • Terraform: alicloud_polardb_cluster