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View File Name : increase-replication-factor.rst

**To increase the replication factor for a DAX cluster**

The following ``increase-replication-factor`` example increases the specified DAX cluster's replication factor to 3. ::

    aws dax increase-replication-factor \
        --cluster-name daxcluster \
        --new-replication-factor 3

Output::

    {
        "Cluster": {
            "ClusterName": "daxcluster",
            "ClusterArn": "arn:aws:dax:us-west-2:123456789012:cache/daxcluster",
            "TotalNodes": 3,
            "ActiveNodes": 1,
            "NodeType": "dax.r4.large",
            "Status": "modifying",
            "ClusterDiscoveryEndpoint": {
                "Address": "daxcluster.ey3o9d.clustercfg.dax.usw2.cache.amazonaws.com",
                "Port": 8111
            },
            "Nodes": [
                {
                    "NodeId": "daxcluster-a",
                    "Endpoint": {
                        "Address": "daxcluster-a.ey3o9d.0001.dax.usw2.cache.amazonaws.com",
                        "Port": 8111
                    },
                    "NodeCreateTime": 1576625059.509,
                    "AvailabilityZone": "us-west-2c",
                    "NodeStatus": "available",
                    "ParameterGroupStatus": "in-sync"
                },
                {
                    "NodeId": "daxcluster-b",
                    "NodeStatus": "creating"
                },
                {
                    "NodeId": "daxcluster-c",
                    "NodeStatus": "creating"
                }
            ],
            "PreferredMaintenanceWindow": "thu:13:00-thu:14:00",
            "SubnetGroup": "default",
            "SecurityGroups": [
                {
                    "SecurityGroupIdentifier": "sg-1af6e36e",
                    "Status": "active"
                }
            ],
            "IamRoleArn": "arn:aws:iam::123456789012:role/DAXServiceRoleForDynamoDBAccess",
            "ParameterGroup": {
                "ParameterGroupName": "default.dax1.0",
                "ParameterApplyStatus": "in-sync",
                "NodeIdsToReboot": []
            },
            "SSEDescription": {
                "Status": "ENABLED"
            }
        }
    }

For more information, see `Managing DAX Clusters <https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DAX.cluster-management.html#DAX.cluster-management.custom-settings>`__ in the *Amazon DynamoDB Developer Guide*.