Xymon plugin for Netgear ReadyNAS

This plugin uses snmp. Since snmp is an "enterprise" feature on
ReadyNAS, the snmpon add-on must be installed on the NAS.

The following instructions are for Ubuntu Linux.

Put the file readynas.sh in /usr/lib/hobbit/server/ext/
Put the file hobbitgraph.d/readynas.cfg in /etc/hobbit/hobbitgraph.d/
Put the file hobbitlaunch.d/readynas.cfg in /etc/hobbit/hobbitlaunch.d/

Mark the nas in /etc/hobbit/bb-hosts with the tag readynas so the script
will pick it up.

Restart Xymon:

service hobbit restart

And that's it. You should get a number of dots, hopefully green,
and pretty graphs like those in the screenshot.