http://blog.tanelpoder.com/2007/08/27/advanced-oracle-troubleshooting-guide- part-2-no-magic-is-needed-systematic-approach-will-do/ -- Regards, Tanel Poder http://blog.tanelpoder.com <http://blog.tanelpoder.com/> I just don't think everybody gets it. Please try to think outside the box just for a moment. This was not your common, everyday run of the mill problem which revealed itself in the alert log. I did everything a DBA could do: set events, ran traces, ran Statspack reports, iostat, vmstat.