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Cloud Config:Check for automatic primary/secondary failover on RDS instances

Last Updated:Oct 21, 2025

An RDS instance is considered compliant if automatic primary/secondary failover is enabled. This rule does not apply to general-purpose instances of the Basic Edition, non-high-availability read-only instances, or instances that do not use cloud disks.

Risk level

Default risk level: Medium.

You can change the risk level as needed.

Detection logic

  • An RDS instance is considered compliant if automatic primary/secondary failover is enabled. This rule does not apply to general-purpose instances of the Basic Edition, non-high-availability read-only instances, or instances that do not use cloud disks.

Rule details

Parameter

Description

Rule name

Check for automatic primary/secondary failover on RDS instances

Rule identifier

rds-haconfig-enabled

Tag

RDS

Automatic remediation

Supported

ACS-RDS-BulkyModifyHASwitchConfig

Rule trigger

Periodic

Trigger frequency

24 hours

Supported resource types

ACS::RDS::DBInstance

Input parameters

None

Remediation

To remediate a non-compliant resource, see Manage primary/secondary failover.