def Size(self):
    """Return the actual disk size in bytes.

    @rtype: int
    @return: The file size in bytes.

    """
    self.Exists(assert_exists=True)
    try:
      return os.stat(self.path).st_size
    except __HOLE__ as err:
      base.ThrowError("%s: can't stat: %s", self.path, err)
dataset/ETHPy150Open ganeti/ganeti/lib/storage/filestorage.py/FileDeviceHelper.Size