Performance management is a key task for all system administrators. nmon is a very useful tool to reveal performance data to help make your job easier, and it now supports IBM AIX and Linux (Intel, POWER and mainframe). Join the discussion, bring your knowledge and imagination to the table to develop your understanding of what your machines are doing via monitoring with nmon and how they might be tuned. Information can also be found at the <a href="http://www.ibm.com/developerworks/wikis/display/WikiPtype/nmon">AIX wiki</a>.