Rolling Back a Snapshot to an EVS Disk

Function

This API is used to roll back a snapshot to an EVS disk.

Constraints

• When you roll back a snapshot to a disk, you can only roll back the snapshot to the source disk. Rollback to a specified disk is not supported.
• You can roll back a disk from a snapshot only when the disk is in the available or error_rollbacking state.
• Snapshots whose names started with prefix autobk_snapshot_ are automatically created by the system during backup creations. Do not use these snapshots to roll back the disk data.

URI

• URI format

  POST /v2/{project_id}/os-vendor-snapshots/{snapshot_id}/rollback

• Parameter description

  Parameter	Mandatory	Description
  project_id	Yes	The project ID. For details about how to obtain the project ID, see Obtaining a Project ID.
  snapshot_id	Yes	The snapshot ID.

Request

• Request parameters

  Parameter	Type	Mandatory	Description
  rollback	Object	Yes	The snapshot rollback information. For details, see Parameters in the rollback field.

• Parameters in the rollback field

  Parameter	Type	Mandatory	Description
  volume_id	String	Yes	The ID of the target disk.
  name	String	No	The name of the target disk. The value can contain a maximum of 255 bytes. NOTE: Parameter name cannot be used independently. When name is going to be used, volume_id must also be specified.

• Example request

  {
      "rollback": {
          "name": "test-001",
          "volume_id": "5aa119a8-d25b-45a7-8d1b-88e127885635"
      }
  }

Response

• Response parameters

  Parameter	Type	Description
  rollback	Object	The snapshot rollback information. For details, see Parameter in the rollback field.
  error	Object	The error message returned if an error occurs. For details, see Parameters in the error field.

• Parameter in the rollback field

  Parameter	Type	Description
  volume_id	String	The ID of the target disk that the snapshot data rolled back to.

• Parameters in the error field

  Parameter	Type	Description
  message	String	The error message returned if an error occurs.
  code	String	The error code returned if an error occurs. For details about the error code, see Error Codes.

• Example response

  {
      "rollback": {
          "volume_id": "5aa119a8-d25b-45a7-8d1b-88e127885635"
      }
  }

  or

  {
      "error": {
          "message": "XXXX", 
          "code": "XXX"
      }
  }

  In the preceding example, error indicates a general error, for example, badRequest or itemNotFound. An example is provided as follows:

  {
      "badRequest": {
          "message": "XXXX", 
          "code": "XXX"
      }
  }

Status Codes

• Normal

  202

Error Codes

For details, see Error Codes.