# ProductionVariantCapacityReservationConfig
<a name="API_ProductionVariantCapacityReservationConfig"></a>

Settings for the capacity reservation for the compute instances that SageMaker AI reserves for an endpoint. 

## Contents
<a name="API_ProductionVariantCapacityReservationConfig_Contents"></a>

 ** CapacityReservationPreference **   <a name="sagemaker-Type-ProductionVariantCapacityReservationConfig-CapacityReservationPreference"></a>
Options that you can choose for the capacity reservation. SageMaker AI supports the following options:    
capacity-reservations-only  
SageMaker AI launches instances only into an ML capacity reservation. If no capacity is available, the instances fail to launch.
Type: String  
Valid Values: `capacity-reservations-only`   
Required: No

 ** MlReservationArn **   <a name="sagemaker-Type-ProductionVariantCapacityReservationConfig-MlReservationArn"></a>
The Amazon Resource Name (ARN) that uniquely identifies the ML capacity reservation that SageMaker AI applies when it deploys the endpoint.  
Type: String  
Length Constraints: Minimum length of 20. Maximum length of 258.  
Pattern: `arn:aws[a-z\-]*:sagemaker:[a-z0-9\-]*:[0-9]{12}:[a-z0-9\-]{1,14}/.*`   
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/sagemaker-2017-07-24/ProductionVariantCapacityReservationConfig) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/sagemaker-2017-07-24/ProductionVariantCapacityReservationConfig) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/sagemaker-2017-07-24/ProductionVariantCapacityReservationConfig)