# `AWSConfigRemediation-ModifyRedshiftClusterNodeType`


 **Description** 

 The `AWSConfigRemediation-ModifyRedshiftClusterNodeType` runbook modifies the node type and number of nodes for the Amazon Redshift cluster you specify. 

 [Run this Automation (console)](https://console.amazonaws.cn/systems-manager/automation/execute/AWSConfigRemediation-ModifyRedshiftClusterNodeType) 

**Document type**

Automation

**Owner**

Amazon

**Platforms**

Databases

**Parameters**
+ AutomationAssumeRole

  Type: String

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

  Type: Boolean

   Description: (Optional) If set to `true` , the resize operation uses the classic resize process. 
+ ClusterIdentifier

  Type: String

  Description: (Required) The unique identifier of the cluster whose node type you want to modify.
+ ClusterType

  Type: String

  Valid values: single-node \$1 multi-node

  Description: (Required) The type of cluster you want to assign to your cluster.
+ NodeType

  Type: String

  Valid values: ds2.xlarge \$1 ds2.8xlarge \$1 dc1.large \$1 dc1.8xlarge \$1 dc2.large \$1 dc2.8xlarge \$1 ra3.4xlarge \$1 ra3.16xlarge

  Description: (Required) The type of node you want to assign to your cluster.
+ NumberOfNodes

  Type: Integer

  Valid values: 2-100

   Description: (Optional) The number of nodes you want to assign to your cluster. If your cluster is a `single-node` type, do not specify a value for this parameter. 

**Required IAM permissions**

The `AutomationAssumeRole` parameter requires the following actions to use the runbook successfully.
+  `ssm:StartAutomationExecution` 
+  `ssm:GetAutomationExecution` 
+  `redshift:DescribeClusters` 
+  `redshift:ResizeCluster` 

 **Document Steps** 
+  `aws:executeScript` - Modifies the node type and number of nodes for the cluster specified in the `ClusterIdentifier` parameter.