Solution : https://service.sap.com/sap/support/notes/149379 (SAP Service marketplace login required)
Key words :
r3<sid>400/r3_<instanz-nr>, dbms = db2/400tp 'connect <sid>', data area r3_<instance-, additional key words r3inlpgm, library r3<sid>400, system id <sid>, instance number <instance-, <sid> specifies, message connect, instance number
Related Notes :
| 67213 | iSeries: Transports between two SAP Systems |