How many devices can support monitoring my machine?

[Jessuzz94]

With nagios 4.0.8 installed on one machine with Centos 7 minimal, with no GUI, 1GB RAM and 160 GB Disk, how many routers, switches, servers can monitor with no problems?, and each switch with 5 services maximum, (bandwidth ports),

it can support 100 devices?

[tmcdonald]

100 should be no problem, but there are many, many factors that affect this such as:

• CPU/core count
• Type of checks being run
• Frequency of checks
• % of hosts/services in a non-OK state
• # of notifications going out per problem

My advice has always been to build for more than you are expecting to monitor, and then add servers in groups while watching the utilization.

[Jessuzz94]

checks should be the ping, and for switches badnwidth for some ports, frecuency of checks the default, 5 minutes, the % of the states is often up

[hsmith]

checks should be the ping, and for switches badnwidth for some ports, frecuency of checks the default, 5 minutes, the % of the states is often up

That shouldn't be too bad, is this a VM where you can expand at will?