You should look at Shinken too, it’s a enhanced Nagios reimplementation in Python that allow you to have a quick and easy distributed and high availability monitoring environment, and of course with Nagios configuration and plugins compatibility.

It’s available (Open Source with a AGPL licence) at http://www.shinken-monitoring.org with even a demo virtual machine to test it in 5minutes.

Jean Gabes, Shinken developper

why pay for a solution which is closed source if you can do it yourself for free and have the source.

There’s a product called LogicMonitor, which automates a lot of work to setup Netapp monitoring, and also can monitor other devices in a datacenter (servers, load balancers, databases, networking gear, etc).
Check out http://www.logicmonitor.com/monitoring/monitoring-netapp-filers/

Thanks for this statement ;-)

If you have problems and/or ideas please contact me! I would be happy to integreate new features in the plugin.

bye

Sven