Nagios does do some rrd based logging/graphing of data but a more refined tool for is Cacti. Cacti also does some rudimentary alerting akin to nagios through the threshold plugin. So they compliment each other nicely. Also you can add in graphs to nagios from cacti data. -----Original Message----- From: gregrwm <tclug1 at whitleymott.net> Sender: tclug-list-bounces at mn-linux.org Date: Thu, 15 Mar 2012 12:26:45 To: <tclug-list at mn-linux.org> Reply-To: TCLUG Mailing List <tclug-list at mn-linux.org> Subject: [tclug-list] data collection _______________________________________________ TCLUG Mailing List - Minneapolis/St. Paul, Minnesota tclug-list at mn-linux.org http://mailman.mn-linux.org/mailman/listinfo/tclug-list