Stephen Cartwright wrote: >I am looking at both Ganglia and Nagios... any comments on how they compare? > > You're comparing apples and oranges.
Nagios is an active system monitor, it's along the lines of HP Openview or OpenNMS. It doesn't do any graphing, it is focused on service and host uptime monitoring. Ganglia is better used as a data collector and trending tool, along the lines of cricket, cacti, mrtg, or any other SNMP monitoring tool that generates graphs based on collected data. We run both (in fact, three of the above, Nagios, Cricket, and Ganglia); as they all give you different views into the system. Nagios is what pages me in the middle of the night. Cricket is where we go for long-term trending and data collection for non-Linux boxen (routers, air handlers, etc.). And Ganglia gives us high precision system statistics. Most SNMP monitors only run every 5 minutes, whereas Ganglia gives you statistics much more frequently. -- Dan Rich <[EMAIL PROTECTED]> | http://www.employees.org/~drich/ | "Step up to red alert!" "Are you sure, sir? | It means changing the bulb in the sign..." | - Red Dwarf (BBC)
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