perf2rrd is a free and open source utility that will automate the extraction of performance data from Nagios plug-ins into round robin database files (.rrd's).
Here are some key features of "perf2rrd":
· Once installed and running, will NOT require further configuration.
· RRD files will be stored in a single location, one file for each host + service + item of performance data.
· The RRD files created can be easily used by DRRAW for all your display needs
· Nagios plugins