Last updated: 2020-10-16 18:49:02

1. API Description

Domain name for API request:

This API (AttachDisks) is used to mount cloud disks.

  • Batch operations are supported. Multiple cloud disks can be mounted to a CVM. If there is a cloud disk that does not allow this operation, the operation is not performed and a specific error code is returned.
  • This API is an asynchronous API. If the request for mounting the cloud disk successfully returns results, the operation of mounting cloud disk has been initiated at the background. You can use the API DescribeDisks to query the cloud disk status. If the status changes from "ATTACHING" to "ATTACHED", the cloud disk is mounted.

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

Note: This API supports Finance regions. If the common parameter Region is a Finance region, a domain name with the Finance region needs to be specified, for example:

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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 parameter. The value used for this API: AttachDisks.
Version Yes String Common parameter. The value used for this API: 2017-03-12.
Region Yes String Common parameter. For more information, please see the list of regions supported by the product.
DiskIds.N Yes Array of String ID of the elastic cloud disk to be mounted, which can be queried through the API DescribeDisks. A maximum of 10 elastic cloud disks can be mounted in a single request.
InstanceId Yes String ID of the CVM instance on which the cloud disk will be mounted. It can be queried via the API DescribeInstances.
DeleteWithInstance No Boolean Optional parameter. If this is not passed only the mount operation is executed. If True is passed, the cloud disk will be configured to be terminated when the server it is mounted to is terminated. This is only valid for pay-as-you-go cloud disks.

3. Output Parameters

Parameter Name Type Description
RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Example

Example1 Mounting Cloud Disks

Input Example
&<common request parameters>

Output Example

  "Response": {
    "RequestId": "e0f140e5-14d6-c4a1-91e0-5a1f7f05a68a"

5. Developer Resources

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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
InternalError.ResourceOpFailed The operation performed on the resource failed. For error message, see the "Message" field in error description. Try again later or contact customer service.
InvalidDisk.Attached Cloud disk is already mounted.
InvalidDisk.NotPortable Non-elastic cloud disks are not supported.
InvalidDisk.NotSupported Indicates that the operation is not supported for the cloud disk.
InvalidDisk.TypeError Invalid cloud disk type.
InvalidDiskId.NotFound The ‘DiskId’ entered does not exist.
InvalidInstance.NotSupported Cloud Virtual Machine does not support mounting cloud disk.
InvalidInstanceId.NotFound The ‘InstanceId’ entered does not exist.
InvalidParameterValue Invalid parameter value.
InvalidParameterValue.LimitExceeded Number of parameter values exceeds the limit.
LimitExceeded.InstanceAttachedDisk Number of instances mounted to cloud disk exceeds the limit.
MissingParameter Missing parameter.
ResourceBusy The resource is busy. Try again later.
ZoneNotMatch The cloud disk and the instance are not in the same availability zone.

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