Get info about host, mode and level for specified server

        :param argin: server name
        :type: tango.DevString
        :return: server info
        :rtype: tango.DevVarStringArray

def DbGetServerInfo(self, argin):
        """ Get info about host, mode and level for specified server

        :param argin: server name
        :type: tango.DevString
        :return: server info
        :rtype: tango.DevVarStringArray """
        self._log.debug("In DbGetServerInfo()")
        return self.db.get_server_info(argin)