# ResetCache
<a name="API_ResetCache"></a>

Resets all cache disks that have encountered an error and makes the disks available for reconfiguration as cache storage. If your cache disk encounters an error, the gateway prevents read and write operations on virtual tapes in the gateway. For example, an error can occur when a disk is corrupted or removed from the gateway. When a cache is reset, the gateway loses its cache storage. At this point, you can reconfigure the disks as cache disks. This operation is only supported in the cached volume and tape types.

**Important**  
If the cache disk you are resetting contains data that has not been uploaded to Amazon S3 yet, that data can be lost. After you reset cache disks, there will be no configured cache disks left in the gateway, so you must configure at least one new cache disk for your gateway to function properly.

## Request Syntax
<a name="API_ResetCache_RequestSyntax"></a>

```
{
   "GatewayARN": "{{string}}"
}
```

## Request Parameters
<a name="API_ResetCache_RequestParameters"></a>

For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

The request accepts the following data in JSON format.

 ** [GatewayARN](#API_ResetCache_RequestSyntax) **   <a name="StorageGateway-ResetCache-request-GatewayARN"></a>
The Amazon Resource Name (ARN) of the gateway. Use the [ListGateways](API_ListGateways.md) operation to return a list of gateways for your account and Amazon Web Services Region.  
Type: String  
Length Constraints: Minimum length of 50. Maximum length of 500.  
Required: Yes

## Response Syntax
<a name="API_ResetCache_ResponseSyntax"></a>

```
{
   "GatewayARN": "string"
}
```

## Response Elements
<a name="API_ResetCache_ResponseElements"></a>

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

 ** [GatewayARN](#API_ResetCache_ResponseSyntax) **   <a name="StorageGateway-ResetCache-response-GatewayARN"></a>
The Amazon Resource Name (ARN) of the gateway. Use the [ListGateways](API_ListGateways.md) operation to return a list of gateways for your account and Amazon Web Services Region.  
Type: String  
Length Constraints: Minimum length of 50. Maximum length of 500.

## Errors
<a name="API_ResetCache_Errors"></a>

For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** InternalServerError **   
An internal server error has occurred during the request. For more information, see the error and message fields.    
 ** error **   
A [StorageGatewayError](API_StorageGatewayError.md) that provides more information about the cause of the error.  
 ** message **   
A human-readable message describing the error that occurred.
HTTP Status Code: 400

 ** InvalidGatewayRequestException **   
An exception occurred because an invalid gateway request was issued to the service. For more information, see the error and message fields.    
 ** error **   
A [StorageGatewayError](API_StorageGatewayError.md) that provides more detail about the cause of the error.  
 ** message **   
A human-readable message describing the error that occurred.
HTTP Status Code: 400

## See Also
<a name="API_ResetCache_SeeAlso"></a>

For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+  [Amazon Command Line Interface V2](https://docs.amazonaws.cn/goto/cli2/storagegateway-2013-06-30/ResetCache) 
+  [Amazon SDK for .NET V4](https://docs.amazonaws.cn/goto/DotNetSDKV4/storagegateway-2013-06-30/ResetCache) 
+  [Amazon SDK for C\+\+](https://docs.amazonaws.cn/goto/SdkForCpp/storagegateway-2013-06-30/ResetCache) 
+  [Amazon SDK for Go v2](https://docs.amazonaws.cn/goto/SdkForGoV2/storagegateway-2013-06-30/ResetCache) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/storagegateway-2013-06-30/ResetCache) 
+  [Amazon SDK for JavaScript V3](https://docs.amazonaws.cn/goto/SdkForJavaScriptV3/storagegateway-2013-06-30/ResetCache) 
+  [Amazon SDK for Kotlin](https://docs.amazonaws.cn/goto/SdkForKotlin/storagegateway-2013-06-30/ResetCache) 
+  [Amazon SDK for PHP V3](https://docs.amazonaws.cn/goto/SdkForPHPV3/storagegateway-2013-06-30/ResetCache) 
+  [Amazon SDK for Python](https://docs.amazonaws.cn/goto/boto3/storagegateway-2013-06-30/ResetCache) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/storagegateway-2013-06-30/ResetCache)