# Adding a scaling policy
<a name="AutoScaling-Adding-Policy-Replicas"></a>

You can add a scaling policy using the AWS Management Console. 

**Adding a scaling policy using the AWS Management Console**

To add an auto scaling policy to ElastiCache for Valkey and Redis OSS

1. Sign in to the AWS Management Console and open the Amazon ElastiCache console at [https://console.aws.amazon.com/elasticache/](https://console.aws.amazon.com/elasticache/).

1. In the navigation pane, choose **Valkey** or **Redis OSS**. 

1. Choose the cluster that you want to add a policy to (choose the cluster name and not the button to its left). 

1. Choose the **Auto Scaling policies** tab. 

1. Choose **add dynamic scaling**. 

1. Under **Scaling policies**, choose **Add dynamic scaling**.

1. For **Policy Name**, enter the policy name. 

1. For **Scalable Dimension**, select **Replicas** from dialog box. 

1. For the target value, type the Avg percentage of CPU utilization that you want to maintain on ElastiCache Replicas. This value must be >=35 and <=70. Cluster replicas are added or removed to keep the metric close to the specified value.

1. (Optional) scale-in or scale-out cooldown periods are not supported from the Console. Use the AWS CLI to modify the cool down values. 

1. For **Minimum capacity**, type the minimum number of replicas that the ElastiCache Auto Scaling policy is required to maintain. 

1. For **Maximum capacity**, type the maximum number of replicas the ElastiCache Auto Scaling policy is required to maintain. This value must be >=5. 

1. Choose **Create**.