public static function saveInstance($name)
  {
    $adapter = self::getDataAdapter();
    if (!is_null($adapter)) {
      $config = self::getInstance($name);
      $key = self::_instanceKey($name);
      
      $result = $adapter->save($key, $config);
    } else {
      $result = false;
    }
    
    return $result;
  }