# S3OnDeviceServiceConfiguration
<a name="API_S3OnDeviceServiceConfiguration"></a>

**Note**  
 Amazon Snowball Edge is no longer available to new customers. New customers should explore [Amazon DataSync](https://aws.amazon.com/datasync/) for online transfers, [Amazon Data Transfer Terminal](https://aws.amazon.com/data-transfer-terminal/) for secure physical transfers, or Amazon Partner solutions. For edge computing, explore [Amazon Outposts](https://aws.amazon.com/outposts/).

Amazon S3 compatible storage on Snowball Edge devices configuration items.

## Contents
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 ** FaultTolerance **   <a name="Snowball-Type-S3OnDeviceServiceConfiguration-FaultTolerance"></a>
>Fault tolerance level of the cluster. This indicates the number of nodes that can go down without degrading the performance of the cluster. This additional input helps when the specified `StorageLimit` matches more than one Amazon S3 compatible storage on Snowball Edge devices service configuration.  
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 4.  
Required: No

 ** ServiceSize **   <a name="Snowball-Type-S3OnDeviceServiceConfiguration-ServiceSize"></a>
Applicable when creating a cluster. Specifies how many nodes are needed for Amazon S3 compatible storage on Snowball Edge devices. If specified, the other input can be omitted.  
Type: Integer  
Valid Range: Minimum value of 3. Maximum value of 16.  
Required: No

 ** StorageLimit **   <a name="Snowball-Type-S3OnDeviceServiceConfiguration-StorageLimit"></a>
If the specified storage limit value matches storage limit of one of the defined configurations, that configuration will be used. If the specified storage limit value does not match any defined configuration, the request will fail. If more than one configuration has the same storage limit as specified, the other input need to be provided.  
Type: Double  
Valid Range: Minimum value of 0.0.  
Required: No

 ** StorageUnit **   <a name="Snowball-Type-S3OnDeviceServiceConfiguration-StorageUnit"></a>
Storage unit. Currently the only supported unit is TB.  
Type: String  
Valid Values: `TB`   
Required: No

## See Also
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For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+  [Amazon SDK for C\$1\$1](https://docs.amazonaws.cn/goto/SdkForCpp/snowball-2016-06-30/S3OnDeviceServiceConfiguration) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/snowball-2016-06-30/S3OnDeviceServiceConfiguration) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/snowball-2016-06-30/S3OnDeviceServiceConfiguration)