'Get a system handle, needed to perform operations on the given host
:param host: Host name
:return: Tuple (system, system_handle)'

def get_system_handle(self, host):

    try:
        system = self.server.find_system({'name': host.hostname})[0]
    except IndexError as detail:
        logging.error('Error    finding    %s:    %s', host.hostname, detail)
        raise ValueError(('No    system    %s    registered    on    install    server' % host.hostname))
    system_handle = self.server.get_system_handle(system, self.token)
    return (system, system_handle)
