def get_vlun(volume_name)
      begin
        @vlun.get_vlun(volume_name)
      rescue => ex
        Util.log_exception(ex, caller_locations(1, 1)[0].label)
        raise ex
      end
    end
def get_vlun(volume_name)
      begin
        @vlun.get_vlun(volume_name)
      rescue => ex
        Util.log_exception(ex, caller_locations(1, 1)[0].label)
        raise ex
      end
    end
Gets information about a VLUN.

 ==== Attributes

 * volume_name: The volume name of the VLUN to find
      type volume_name: String

 ==== Returns

 VLUN object

 ==== Raises

 * Hpe3parSdk::HTTPNotFound
        -  NON_EXISTENT_VLUN - VLUN doesn't exist