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    ApsaraDB RDS:DescribeSupportOnlineResizeDisk

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    ApsaraDB RDS:DescribeSupportOnlineResizeDisk

    Last Updated:Aug 28, 2026

    Checks whether the disk of an ApsaraDB RDS for SQL Server instance can be resized online.

    Operation description

    Supported database engine

    SQL Server

    Debugging

    You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

    Authorization information

    The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

    • Operation: the value that you can use in the Action element to specify the operation on a resource.
    • Access level: the access level of each operation. The levels are read, write, and list.
    • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
      • For mandatory resource types, indicate with a prefix of * .
      • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
    • Condition Key: the condition key that is defined by the cloud service.
    • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
    Operation Access level Resource type Condition key Associated operation
    rds:DescribeSupportOnlineResizeDisk get
    *DBInstance
    acs:rds:{#regionId}:{#accountId}:dbinstance/{#DbInstanceId}
      none
    		 none

    Request parameters

    Parameter Type Required Description Example
    DBInstanceId string Yes

    The instance ID. You can call the DescribeDBInstances operation to query the instance ID.

    		 rm-uf6wjk5xxxxxxx

    Response parameters

    Parameter Type Description Example
    object

    The response parameters.
    RequestId string

    The ID of the request.

    		 8B993DA9-5272-5414-94E3-4CA8BA0146C2
    Success boolean

    Indicates whether the request was successful.

    		 true
    Code string

    The response code returned.

    		 NotExists.InstanceId
    Data string

    The response result set.

    		 {"SupportOnlineResizeDisk":true,"DBInstanceName":"rm-uf6wjk5xxxxxxx"}
    Message string

    The response code.

    		 successful

    Examples

    Sample success responses

    JSONformat

    {
  "RequestId": "8B993DA9-5272-5414-94E3-4CA8BA0146C2",
  "Success": true,
  "Code": "NotExists.InstanceId",
  "Data": {
    "SupportOnlineResizeDisk": true,
    "DBInstanceName": "rm-uf6wjk5xxxxxxx"
  },
  "Message": "successful"
}

    Error codes

    HTTP status code Error code Error message Description
    400 InvalidDBInstanceEngineType.Format the DB instance engine type does not support this operation. This operation is not supported for the database engine of the instance.
    404 InvalidDBInstanceName.NotFound The database instance does not exist. The name of the RDS instance cannot be found. Check the name of the RDS instance.

    For a list of error codes, visit the Service error codes.

    Change history

    Change time Summary of changes Operation
    No change history