Expanding Capacity of an EVS Disk

Function

This API is used to expand the capacity of an EVS disk.

• If the status of the to-be-expanded disk is available, there are no restrictions.
• If the status of the to-be-expanded disk is in-use, the restrictions are as follows:
  • A shared disk cannot be expanded, that is, the value of parameter multiattach must be false.
  • The status of the server to which the disk attached must be ACTIVE, PAUSED, SUSPENDED, or SHUTOFF.

URI

• URI format

  POST /v3/{project_id}/volumes/{volume_id}/action

• Parameter description

  Parameter	Mandatory	Description
  project_id	Yes	Specifies the project ID.
  volume_id	Yes	Specifies the ID of a disk.

Request

• Request parameters

  Parameter	Type	Mandatory	Description
  os-extend	Object	Yes	The disk expansion marker. For details, see Parameter in the os-extend field.

• Parameter in the os-extend field

  Parameter	Type	Mandatory	Description
  new_size	Integer	Yes	The new disk size, in GB. The new disk size ranges from the original disk size to the maximum size (32768 for a data disk and 1024 for a system disk).

• Example request

  {
      "os-extend": {
          "new_size": 100
      }
  }

Response

• Response parameters

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

• 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

  None

  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.