I havn't seen anything that jumps out at me in SMIT. You're right, Unix seems to spread the load out evenly with what is available. I don't actually think this is an AIX issue but an application issue somewhere. Some developers came to me last minute testing an Oracle install and hardware upgrade I did this past weekend and then they reconfigured the environment. I ran topas and noticed the paging space was a bit high and ran some reports in TeamQuest and noticed one CPU which seemed to get utilized much more than the rest. It seemed odd and wanted to pin down the process(es) they were testing. I actually think this is a problem with the way they setup their JVM's but I don't want to point fingers without more evidence.