# ReplicationSpecification
<a name="API_ReplicationSpecification"></a>

 The replication specification of the keyspace includes:
+  `regionList` - the AWS Regions where the keyspace is replicated in.
+  `replicationStrategy` - the required value is `SINGLE_REGION` or `MULTI_REGION`.

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

 ** replicationStrategy **   <a name="keyspaces-Type-ReplicationSpecification-replicationStrategy"></a>
 The `replicationStrategy` of a keyspace, the required value is `SINGLE_REGION` or `MULTI_REGION`.   
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 20.  
Valid Values: `SINGLE_REGION | MULTI_REGION`   
Required: Yes

 ** regionList **   <a name="keyspaces-Type-ReplicationSpecification-regionList"></a>
 The `regionList` contains the AWS Regions where the keyspace is replicated in.   
Type: Array of strings  
Array Members: Minimum number of 2 items.  
Length Constraints: Minimum length of 2. Maximum length of 25.  
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/keyspaces-2022-02-10/ReplicationSpecification) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/keyspaces-2022-02-10/ReplicationSpecification) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/keyspaces-2022-02-10/ReplicationSpecification)