# `AWSConfigRemediation-EnableMultiAZOnRDSInstance`
<a name="automation-aws-multi-az-rds"></a>

 **Description** 

 The `AWSConfigRemediation-EnableMultiAZOnRDSInstance` runbook changes your Amazon Relational Database Service (Amazon RDS) database (DB) instance to a Multi-AZ deployment. Changing this setting doesn't result in an outage. The change is applied during the next maintenance window unless you set the `ApplyImmediately` parameter to `true` . 

 [Run this Automation (console)](https://console.aws.amazon.com/systems-manager/automation/execute/AWSConfigRemediation-EnableMultiAZOnRDSInstance) 

**Document type**

Automation

**Owner**

Amazon

**Platforms**

Linux, macOS, Windows

**Parameters**
+ ApplyImmediately

  Type: Boolean

  Default: false

   Description: (Optional) If you specify `true` for this parameter, the modifications in this request and any pending modifications are asynchronously applied as soon as possible, regardless of the `PreferredMaintenanceWindow` setting for the DB instance. 
+ AutomationAssumeRole

  Type: String

  Description: (Required) The Amazon Resource Name (ARN) of the AWS Identity and Access Management (IAM) role that allows Systems Manager Automation to perform the actions on your behalf.
+ DbiResourceId

  Type: String

   Description: (Required) The AWS Region-unique, immutable identifier for the DB instance to enable the `MultiAZ` setting. 

**Required IAM permissions**

The `AutomationAssumeRole` parameter requires the following actions to use the runbook successfully.
+  `rds:DescribeDBInstances` 
+  `rds:ModifyDBInstance` 
+  `ssm:StartAutomationExecution` 
+  `ssm:GetAutomationExecution` 

 **Document Steps** 
+  `aws:executeAwsApi` - Retrieves the DB instance name using the value provided in the `DBInstanceId` parameter. 
+  `aws:executeAwsApi` - Verifies the `DBInstanceStatus` is `available` . 
+  `aws:branch` - Checks whether the `MultiAZ` is already set to `true` on the DB instance you specify in the `DbiResourceId` parameter. 
+  `aws:executeAwsApi` - Changes the `MultiAZ` setting to `true` on the DB instance you specify in the `DbiResourceId` parameter. 
+  `aws:assertAwsResourceProperty` - Verifies the `MultiAZ` is set to `true` on the DB instance you specify in the `DbiResourceId` parameter.