Does anyone have some pointers in terms of writing a very simple management pack that will do a discovery using SNMP looking at a specific OID then alert when that value is above a certain level?

We have a old UPS and we can access all sorts of monitor values via SNMP one of witch is the current load of the UPS – I would like to write a MP or construct a monitor that will alert if the UPS load value goes above 75%

jaspervd answered