Solution : https://service.sap.com/sap/support/notes/858969 (SAP Service marketplace login required)
Key words : 
>dbs/db2/hosttcp=<database host>rsdb/max_blocking_factor=10rsdb/max_in_blocking_factor=10rsdb/min_blocking_factor=3rsdb/min_in_blocking_factor=3rsdb/prefer_fix_blocking=0rsdb/prefer_union_all=1rsdb/prefer_in_itab_opt=1 3, db2 catalog tcpip node <ssid> remote <db hostname> server <ddf port>        db2 catalog database <ssid>, isolation ur blocking unambig release commit        sqlerror continue encoding unicode dynamicrules runafter, isolation ur        blocking unambig release commit sqlerror continue        encoding unicode dynamicrules run, dbms/type=db2dbs/db2/schema=<abap schema>dbs/db2/use_drda=1dbs/db2/ssid=<database, node <ssid> authentication server        db2 catalog dcs database <ssid>, ------------------------------------------------package  object             type  action  status-------------------------------------------------sapappl0  testdatrnrpart0~0  pkey  create------------------------------------------------- 2, db2 bind <instance directory>/sqllib/bnd/@ddcsmvs, operation system users <sid>adm andsapservice<sid>, <dvd>/im_<platform>/nw04s/webas/ind
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