# ClusterTieredStorageConfig


Defines the configuration for managed tier checkpointing in a HyperPod cluster. Managed tier checkpointing uses multiple storage tiers, including cluster CPU memory, to provide faster checkpoint operations and improved fault tolerance for large-scale model training. The system automatically saves checkpoints at high frequency to memory and periodically persists them to durable storage, like Amazon S3.

## Contents


 ** Mode **   <a name="sagemaker-Type-ClusterTieredStorageConfig-Mode"></a>
Specifies whether managed tier checkpointing is enabled or disabled for the HyperPod cluster. When set to `Enable`, the system installs a memory management daemon that provides disaggregated memory as a service for checkpoint storage. When set to `Disable`, the feature is turned off and the memory management daemon is removed from the cluster.  
Type: String  
Valid Values: `Enable | Disable`   
Required: Yes

 ** InstanceMemoryAllocationPercentage **   <a name="sagemaker-Type-ClusterTieredStorageConfig-InstanceMemoryAllocationPercentage"></a>
The percentage (int) of cluster memory to allocate for checkpointing.  
Type: Integer  
Valid Range: Minimum value of 0. Maximum value of 100.  
Required: No

## See Also


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/ClusterTieredStorageConfig) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/sagemaker-2017-07-24/ClusterTieredStorageConfig) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/sagemaker-2017-07-24/ClusterTieredStorageConfig)