Solution : https://service.sap.com/sap/support/notes/1138549 (SAP Service marketplace login required)
Key words : 
/usr/sap/<sid>/sys/global/db6/<os>/db6_clidriver/, ~db2<dbsid>/db2_v9_fp1/instance/db2iupdt db2<dbsid>important, <dbsw>/das/bin/db2admin stop iii, db2 command /usr/local/bin/db2ls, single centrally installed db2 software instance, db2 v9 ga todb2 v9, newer sap installation tools install, 5 luw cli/jdbc driver dvd, remaining shared memory segments, linux power pc 64-bit
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