And yet again, I answer my own questions. Sorry for clogging up the list. I have to supply the -f switch and all is well, it's dumps the performance output as expected. <div class="gmail_quote">On Fri, Jun 27, 2008 at 3:13 PM, Stephen Valdinger <<a href="mailto:stephen.valdinger@gmail.com">stephen.valdinger@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hey list, I'm having a time with check_snmp_win.pl from <a href="http://nagios.manubulon.com/snmp_windows.html" target="_blank">http://nagios.manubulon.com/snmp_windows.html</a>. I'm running Nagios 2.10 with 1.4.11 plugins. I just recently go PNP up and running, and I must say I am rather pleased with the results thus far. What I am wanting to do is graph the performance data of this plugin. It says on the site that it writes the data, and I see this in the web interface: D:\ Label:Data Serial Number e02aaef0: 83%used(85227MB/102399MB) (<85%) : OK . However, when PNP tries to create the RRD files for this check it shows this in the perfdata.log file: No Performance Data for DOVFS00 / Check D:\ Usage Data. I am wondering if anyone has run into an issue with plugin and could help me debug my situation. Thanks a lot Stephen -- Husband: "Make me a sandwich Wife: "What? Make it yourself" Husband: "Sudo make me a sandwich" Wife: "Okay" </blockquote></div> -- Husband: "Make me a sandwich Wife: "What? Make it yourself" Husband: "Sudo make me a sandwich" Wife: "Okay"