You can call this operation to modify the name or description of a storage capacity unit (SCU).


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes ModifyStorageCapacityUnitAttribute

The operation that you want to perform. Set the value to ModifyStorageCapacityUnitAttribute.

RegionId String Yes cn-hangzhou

The region ID of the SCU. You can call the DescribeRegions operation to query the most recent region list.

StorageCapacityUnitId String Yes scu-bp67acfmxazb4p****

The ID of the SCU.

Name String No testNewScuName

The name of the SCU. It must be 2 to 128 characters in length and can contain letters, digits, colons (:), underscores (_), and hyphens (-). It must start with a letter but cannot start with http:// or https://.

Description String No testNewScuDescription

The description of the SCU. It must be 2 to 256 characters in length and cannot start with http:// or https://.

Response parameters

Parameter Type Example Description
RequestId String 473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E

The ID of the request.


Sample requests
&<Common request parameters>

Sample success responses

XML format


JSON format


Error codes

HTTP status code Error code Error message Description
400 MissingParameter.RegionId The specified RegionId should not be null. The error message returned because the RegionId parameter is not specified.
400 InvalidParameter.Name The specified Name is invalid. The error message returned because the specified Name parameter is invalid.

For a list of error codes, visit the API Error Center.