/**
  * get Accounts storage data
  *
  * @return array
  */
 protected function _getAccountsStorageData()
 {
     $result = Tinebase_User::getBackendConfigurationWithDefaults(Setup_Core::get(Setup_Core::CHECKDB));
     $result['backend'] = Setup_Core::get(Setup_Core::CHECKDB) ? Tinebase_User::getConfiguredBackend() : Tinebase_User::SQL;
     return $result;
 }