Solution : https://service.sap.com/sap/support/notes/153134 (SAP Service marketplace login required)
Key words : 
sapservx directory general/r3server/abap/note, profile parameter dbs/db2/use_set_data_type = 1, icls1316e rrs resignon failed, db2 apar pq2 installed, sap<putpath>\data\r34xos0, os/390 database administration guide 4, individual upgrade phases               phase, <upgrade directory>/exe, sap<putpath>\port, <putpath>\cofiles\k34xos0
Related Notes : 
       
| 175676 | Additions upgrading to 4.6A FCS | 
| 155674 | Additions upgrade to Release 4.6A |