Solution : https://service.sap.com/sap/support/notes/179136 (SAP Service marketplace login required)
Key words : 
generated profile named <sapsystemname>_<instance>_<host> located, directory /general/r3server/patches/<release>/<os>/<proc>/<database>, eval $sapstart pf=$profile_dir/$start_profile  >> $logfile 2>&1new version, eval sh /usr/sap/$sapsystemname/$instance/work/kill, eval /usr/sap/$sapsystemname/$instance/work/kill, $sapstart pf=$profile_dir/$start_profile  >> $logfile 2>&1-------------------------<c5014427, /usr/sap/<sapsid>/sys/exe/run $home, ram + swap space >= 4gb10/aug/01   3      nfs mounts, /3 instance installation4      post installation 1  pre installation usage, /usr/sap/<sapsid>/sys/exe/run
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