tencent cloud

APIs

AttachDisks

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最后更新时间: 2026-10-10 14:59:21

1. API Description

Domain name for API request: emr.intl.tencentcloudapi.com.

This API is used to mount a cloud disk.

A maximum of 20 requests can be initiated per second for this API.

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2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter Name Required Type Description
Action Yes String Common Params. The value used for this API: AttachDisks.
Version Yes String Common Params. The value used for this API: 2019-01-03.
Region Yes String Common Params. For more information, please see the list of regions supported by the product.
InstanceId Yes String ID of the EMR cluster.
DiskIds.N No Array of String ID of the cloud disk to be mounted.
AlignType No String Mounting mode. Valid values:
AUTO_RENEW: auto-renewal
ALIGN_DEADLINE: automatic alignment with the expiration time
CvmInstanceIds.N No Array of String ID list of the CVM instances to which disks are to be mounted.
CreateDisk No Boolean Whether to mount newly purchased cloud disks.
DiskSpec No NodeSpecDiskV2 Specifications of newly purchased cloud disks.
DeleteWithInstance No Boolean Optional parameter. If this parameter is not passed, only the mounting operation is performed. If True is passed, the cloud disk is set to be terminated with the CVM upon successful mounting. This parameter is applicable only to pay-as-you-go cloud disks.
SelectiveConfServices.N No Array of String Name list of services that can be configured when a new disk is mounted.
ChargeType No Integer Disk billing type. Valid values: 1 (monthly subscription) and 3 (committed use).
UnderWriteDuration No Integer Disk committed use and purchase duration. Valid values: 12, 24, 36, 48, and 60.

3. Output Parameters

Parameter Name Type Description
FlowId Integer Flow ID.
RequestId String The unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem.

4. Example

Example1 Mounting a Cloud Disk

Input Example

POST / HTTP/1.1
Host: emr.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: AttachDisks
<Common request parameters>

{
    "InstanceId": "emr-xxxx",
    "DiskIds": [
        "disk-xxx1",
        "disk-xxx2"
    ]
}

Output Example

{
    "Response": {
        "RequestId": "95eb9120-0883-407c-aa5a-43b4e2c250d1"
    }
}

5. Developer Resources

SDK

TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

Command Line Interface

6. Error Code

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

Error Code Description
InvalidParameter.InvalidClusterId Invalid parameter: ClusterId.
ResourceInUse.InstanceInProcess The instance is in process.

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