Hello Jon: Thank you for the information, I guess the snmp option is the quick and dirty way to go. I have never worked with WMI before, however I it is never late to start. Is it possible to access the MSCluster namespace using NSClient++? We use NSClient++ for accessing performance counters at the moment but we have not experimented with WMI yet. Regards Marco <div class="gmail_quote">On Fri, Aug 14, 2009 at 6:51 AM, Jon Angliss <<a href="mailto:jon@netdork.net">jon@netdork.net</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="im">On Wed, 12 Aug 2009 15:08:56 +0200, Marco Tirado <<a href="mailto:marco.tirado@gmail.com">marco.tirado@gmail.com</a>> wrote: >Hello users: > >I would like to know what is the easiest way to detect when a failover >occurs in an MSSQL cluster. I need a simple check that tells me when our >database cluster fails from physical node "X" to node physical node "Y" > >Has anybody done this? Maybe with a passive check? </div>I used to do a quick and dirty way and use the SNMP sysName, and look for a specific value. If it changed from one name to another, it had failed over... ./check_snmp -H host -v 1 -c public -o .1.3.6.1.2.1.1.5.0 -s "expectedname" Or, if you've had experience with WMI, you can hit the MSCluster namespace... <a href="http://technet.microsoft.com/en-us/library/cc780572%28WS.10%29.aspx" target="_blank">http://technet.microsoft.com/en-us/library/cc780572(WS.10).aspx</a> Enjoy :) -- Jonathan Angliss <<a href="mailto:jon@netdork.net">jon@netdork.net</a>> ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. <a href="http://p.sf.net/sfu/bobj-july" target="_blank">http://p.sf.net/sfu/bobj-july</a> _______________________________________________ Nagios-users mailing list <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null </blockquote></div>