max user processes is set smit/system environments/ change show characteristics of operating system, not ulimit.
You should get with your DBA to find out what an estimate of the number of processes oracle may run at one time. (there is a parm for the database for processes. the max user processes on the AIX system should be higher than that number.)
You do not have to boot the box when you change max user processes (unlike on an HP).
Helpful Member!usige (TechnicalUser)
25 Sep 03 17:34
Normally there are three things we change for oracle. the system maxuproc and oracle's fsize and data segment size. These are the commands we use:
chdev -l sys0 -a maxuproc=512
chuser fsize=-1 data=-1 oracle