Analyse the line of peer nodes of ``drbdadm status``

def _add_peernode(line):
    '''
    Analyse the line of peer nodes of ``drbdadm status``
    '''
    global lastpnodevolumes

    fields = line.strip().split()

    peernode = {}
    peernode["peernode name"] = fields[0]
    #Could be role or connection:
    peernode[fields[1].split(":")[0]] = fields[1].split(":")[1]
    peernode["peer volumes"] = []
    resource["peer nodes"].append(peernode)
    lastpnodevolumes = peernode["peer volumes"]