User Guide

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Announcement of the Commercial Charges of Tencent Cloud CBS Snapshot

Announcement of the Commercial Charges of Tencent Cloud CBS Snapshot Cross-Region Replication

Product Introduction

Overview

Strengths

Scenarios

Regions and AZs

Cloud Disk Instances

Cloud Disk Snapshots

Access Management

ApplySnapshot

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最終更新日: 2026-02-04 10:34:33

1. API Description

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

This API (ApplySnapshot) is used to roll back a snapshot to the original cloud disk.

The snapshot can only be rolled back to the original cloud disk. For data disk snapshots, if you need to copy the snapshot data to other cloud disks, use the API CreateDisks to create an elastic cloud disk and then copy the snapshot data to the created cloud disk.
The snapshot for rollback must be in NORMAL status. The snapshot status can be queried in the SnapshotState field in the output parameters through the API DescribeSnapshots.
For elastic cloud disks, the cloud disk must be in UNMOUNTED status. The cloud disk status can be queried in the Attached field returned by the API DescribeDisks. For non-elastic cloud disks purchased together with instances, the instance must be in SHUTDOWN status. The instance status can be queried through the API DescribeInstancesStatus.

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

We recommend you to use API Explorer

Try it

API Explorer provides a range of capabilities, including online call, signature authentication, SDK code generation, and API quick search. It enables you to view the request, response, and auto-generated examples.

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: ApplySnapshot.
Version	Yes	String	Common Params. The value used for this API: 2017-03-12.
Region	Yes	String	Common Params. For more information, please see the list of regions supported by the product. This API only supports: ap-bangkok, ap-beijing, ap-chengdu, ap-chongqing, ap-guangzhou, ap-hongkong, ap-jakarta, ap-nanjing, ap-seoul, ap-shanghai, ap-shanghai-fsi, ap-shenzhen-fsi, ap-singapore, ap-tokyo, eu-frankfurt, na-ashburn, na-siliconvalley, sa-saopaulo.
SnapshotId	Yes	String	Snapshot ID, which can be queried via DescribeSnapshots.
DiskId	Yes	String	ID of the original cloud disk corresponding to the snapshot, which can be queried via the API DescribeDisks.
AutoStopInstance	No	Boolean	Specifies whether to perform automatic shutdown before rolling back. only supports rolling back snapshots to mounted cbs. Specifies whether AutoStartInstance can be set to true when this parameter is true.
AutoStartInstance	No	Boolean	Specifies whether to automatically start after completion. only supports rolling back snapshots to mounted cbs. this parameter requires simultaneous parameter passing of AutoStopInstance.

3. Output Parameters

Parameter Name	Type	Description
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 Rolling back a snapshot

This example shows you how to roll back a cloud disk to the specified snapshot point in time.

Input Example

https://cbs.intl.tencentcloudapi.com/?Action=ApplySnapshot
&DiskId=disk-lzrg2pwi
&SnapshotId=snap-gybrif0z
&<common request parameters>

Output Example

{
    "Response": {
        "RequestId": "cc96242e-566c-ae6a-b74a-5a1f823683b2"
    }
}

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

Tencent Cloud CLI 3.0

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
InvalidDisk.Busy	The cloud disk is busy. Try again later.
InvalidDisk.NotSupported	Indicates that the operation is not supported for the cloud disk.
InvalidDisk.SnapshotCreating	A snapshot is being created for the cloud disk. Try again later.
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.
InvalidParameter.DiskSizeNotMatch	The size of the cloud disk does not match the snapshot size.
InvalidParameter.ShouldConvertSnapshotToImage	You need to convert the snapshot into an image first.
InvalidParameterValue	Invalid parameter value.
InvalidSnapshot.NotSupported	Indicates that the operation is not supported for the snapshot.
InvalidSnapshotId.NotFound	The ‘SnapshotId’ entered does not exist.
MissingParameter	Missing parameter.
ResourceBusy	The resource is busy. Try again later.
ResourceInUse.DiskRollbacking	The cloud disk is being rolled back. Please try again later.
ResourceInsufficient	Insufficient resources.
ResourceNotFound.NotFound	The resource is not found.
ResourceUnavailable.NotSupported	The resource does not support this operation.
ResourceUnavailable.SnapshotCreating	Unable to use: the snapshot is being created
UnauthorizedOperation.MFAExpired	Multi-factor authentication (MFA) has expired. Please try again.

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