I have not used it, but Nagios is open source, and is extensible. http://nagios.org/ And it has pretty pictures: http://nagios.org/about/screenshots.php A quick poke around indicates that it has various plugins for monitoring Oracle databases. -Mark -- Mark J. Bobak Senior Oracle Architect ProQuest/CSA "There are 10 types of people in the world: Those who understand binary, and those who don't." ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Wolfgang Breitling Sent: Friday, April 13, 2007 11:01 AM To: oracle-l@xxxxxxxxxxxxx Subject: Re: Oracle monitoring with visual eye candy or its open source "sibling" big sister http://bigsister.graeff.com/ At 07:42 AM 4/13/2007, Niall Litchfield wrote: check out big brother - might be useful for more than just Oracle.. http://www.bb4.com/ Regards Wolfgang Breitling Centrex Consulting Corporation www.centrexcc.com <http://www.centrexcc.com/> ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________