# AwsMskClusterClusterInfoEncryptionInfoEncryptionAtRestDetails
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 The data-volume encryption details. You can't update encryption at rest settings for existing clusters.

## Contents
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 ** DataVolumeKMSKeyId **   <a name="securityhub-Type-AwsMskClusterClusterInfoEncryptionInfoEncryptionAtRestDetails-DataVolumeKMSKeyId"></a>
 The Amazon Resource Name (ARN) of the AWS KMS key for encrypting data at rest. If you don't specify a KMS key, MSK creates one for you and uses it.  
Type: String  
Pattern: `.*\S.*`   
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/securityhub-2018-10-26/AwsMskClusterClusterInfoEncryptionInfoEncryptionAtRestDetails) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/securityhub-2018-10-26/AwsMskClusterClusterInfoEncryptionInfoEncryptionAtRestDetails) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/securityhub-2018-10-26/AwsMskClusterClusterInfoEncryptionInfoEncryptionAtRestDetails)