1. You can roll back all or part of the disks in the snapshot group.
1. If the disks to be rolled back contain mounted disks, these disks must be mounted to the same instance, and the instance must be shut down before rollback can proceed.
1. Rollback is an asynchronous operation. A successful API return does not mean the rollback is successful. You can query the result of the asynchronous rollback task through the DescribeSnapshotGroups API.

Default interface request rate limit: 20 times per second.

Interface update time: 2021-12-04 04:04:15.

The interface only verifies the signature but does not authenticate.

2. Input Parameters

The following list of request parameters only lists interface request parameters and some public parameters, For a complete list of public parameters see public request parameters.

Parameter name	Required	Allow NULL	Type	Description
Action	Yes	No	String	Public parameter, The value of this interface: ApplySnapshotGroup
Version	Yes	No	String	Public parameter, The value of this interface: 2017-03-12
Region	No	No	String	Public parameter,Regional information A list of supported geographies is available through the DescribeRegions interface
SnapshotGroupId	Yes	No	String	ID of Snapshot Group Rolled Back Example: csnap-csoplz7u
ApplyDisks	Yes	No	Array of ApplyDisk	ID of Snapshot Rolled Back, Cloud Disk ID List Example:View

3. Output Parameters

Parameter name	Type	Description
RequestId	String	Unique request id, Each request will return. The RequestId of the request needs to be provided when locating the problem.

4. Error Code

The following lists only the error codes related to the interface business logic, For other error codes, see public ErrorCode.

Error Code	Description
InvalidParameterValue	Invalid parameter value. The format of the parameter value is incorrect or the parameter value is not supported.
MissingParameter	Missing parameter. The request does not include the mandatory parameter.
UnsupportedOperation.SnapshotGroupDiskAttachMultiInstance	The original disk of the snapshot in the snapshot group is not mounted to the same instance.