Function

This API is used to roll back ECS specifications modification.

Constraints

After the rollback, the data modified during migration will be lost.

Before calling this API, ensure that the ECS status (which can be queried using the API for querying details about the ECS) meets the following requirements:

OS-EXT-STS:vm_state=resized

OS-EXT-STS:task_state=""

status=VERIFY_RESIZE

URI

POST /v2.1/{project_id}/servers/{server_id}/action

POST /v2/{project_id}/servers/{server_id}/action

Table 1 describes the parameters in the URI.

**Table 1** Parameter description
Parameter	Mandatory	Description
project_id	Yes	Specifies the project ID.
server_id	Yes	Specifies the ECS ID.

Request

Table 2 describes the request parameters.

**Table 2** Request parameters
Parameter	Mandatory	Type	Description
revertResize	Yes	Null	Confirms the rollback of the ECS specification modification.

Response

None

Example Request

Roll back modifications to the specifications of a specified ECS.

POST https://{endpoint}/v2/{project_id}/servers/{server_id}/action
POST https://{endpoint}/v2.1/{project_id}/servers/{server_id}/action

{
    "revertResize" : null
}

Example Response