Gabi asked me to help her in configuring Oracle 11g new RAC servers, she was getting errors on kernel parameters configuration in Solaris 10. According to my own written RAC pre installation guide on Solaris 10, i was deceived by ORACLE's official documentation they didn't mentioned about "projadd" so when she was trying to execute projmod command to set kernel parameters, she was getting error "group.dba does not exist".
after realizing that there is of course some steps messing i consult uncle google ;) and found a post , where i found the missing block i.e. projadd command, in fact we need to first add a project only then after we can projmod (modify) it. here is the command:
#projadd -U oracle -K "project.max-shm-memory=(priv,10G,deny)" group.dba