Solution : https://service.sap.com/sap/support/notes/304702 (SAP Service marketplace login required)
Key words : 
terms r3setup db2foros/390 os/390 mvs installation windowsnt aix reason, 1 pre-installation2 r3setup - instance installation3 post-installation4 installation documentation -, dbs/db2/ssid_standby = d6z0                     dbs/db2/hosttcp_standby = ihsapgc, daemon class facility read access profile bpx, superuser class facility read access profile bpx, progctl class facility read access profile bpx, <sid><rel>                            os/390 unix system services, installing db2 pm capi dll, rsdb_db2hoststandby=ihsapge                     rsdb_db2portstandby=4511                     runstats problems, read access profile bpx
Related Notes : 
       
| 450949 | DB2/390: SAP BW 2.1C Installation Asia | 
| 399419 | DB2/390: MCOD installation | 
| 320489 | |
| 192930 | |
| 81737 | DB2-z/OS: APAR List |