Jonathan Hutchins wrote:
What kind of load does Nagios place on a machine? Most of the systems I want to monitor are somewhat marginal - which is why they need monitoring - and on at least one of them external monitoring might not be possible.
The amount of load that Nagios incurs depends on the number of "service" entries you have defined. We have ~100 services defined for ~20 hosts, and the load is minimal, currently wavering between 0.08 and 0.15 on our server (a P3/1000).