Nagios Support Forum

Hi

What is the better solutions to implement nagios with about 1000 hosts and 20000 services, physical or virtual?
Tell me pro and cons about technical and logical notes.

Thank you in advance for your considerations.

Ǫrvar

You will definitely want a physical server for that number of hosts and services. The performance penalty for going virtual is pretty high.

Virtual:
+ easier to manage
+ possibly more cost-efficient
- high performance penalty

Physical:
+ better system performance
- requires purchasing/managing actual hardware

If you do insist on a virtual environment for whatever reason, make sure your disk I/O is fast enough. The new Nagios Core version 4 that is coming out will drastically reduce system load, but if you are doing any processing with your check results (i.e. graphs) the disk I/O will always be pretty high.