Running Nagios on Vmware

[Victor Lanza]

I run 2 Nagios with MRTG on 2 separate VMs on separate sites myself and have
been for over year. Since we have 2 sites, to circumvent the issue with
monitoring the ESXi server I leave that to the other site. 

Site A monitors the ESXi server in Site B and vice versa. This also helps in
monitoring network resources of each site.

If there is indeed an issue with the virtualization server, I would still
get notified. 

-----Original Message-----
From: Kent Saunders [mailto:kgs at uvm.edu] 
Sent: Thursday, July 08, 2010 10:26 AM
To: Nagios Users List
Subject: Re: [Nagios-users] Running Nagios on Vmware

# Is anyone aware of documentation or test cases showing whether or not 
running Nagios on VMware is a good idea? I realize the common opinion is 
that it is a bad idea due to I/O but I am looking for something a bit 
more in depth.

We run a large part of our environment on VMware, however there are 
certain things that we deem worthy of hardware, Nagios being one of 
them.  Since we rely on Nagios to inform us of problems across our 
environment, we need it to be highly reliable, with performance being a 
lesser consideration.  We've experience issues with VMware that cause 
large numbers of guests to lock up, and if this happened to Nagios we 
wouldn't know, or have as deep a level of alerting.

However, if you really like the idea of running it in a vm, I'd suggest 
putting a simple "is Nagios alive" type test outside VMware somewhere, 
to give you an extra layer of protection should the guest have troubles.

I've not compared performance between hardware and a guest, so can't 
comment there.

-kent

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_______________________________________________
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::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null