question about running Nagios on Solaris LDom and Zone servers

[Scott, Ewan]

Thanks for this. I have not decided on exactly what I'll monitor as I'm still installing the clients and making sure the the basic infrastucture works. However in outline:

1. I intend to use nrpe for the checks. 
2. I would envisage 5-6 basic checks on the host primary LDom servers (4) and primary Zone servers (2).
3. I would expect to run up to 10 nrpe checks on each of the guest LDoms and Zones (25 systems).

I would see that as a small system with lightweight checking but would appreciate comments if anyone thinks otherwise. 

Further down the line I'd like to add in 80+ Windows VM systems at which point it would become a very differnet  beast. Currently I'm running the Nagios server on Ubuntu on an old Dell PowerEdge 1850 but had thought of moving it over to a VMware virtual box as it grows. From what you are saying you think I'd run into problems with Nagios on a VM like this and I'd be better keeping it on an - adequately powered - standalone physical box?

Regards
Ewan

Version info:
Nagios core: 3.2
Nagios plugins: 1.4.14
Nagios nrpe: 2.12







-----Original Message-----
From: Morris, Patrick [mailto:patrick.morris at hp.com] 
Sent: 11 January 2010 18:25
To: Scott, Ewan
Cc: Nagios Mailinglist
Subject: Re: [Nagios-users] question about running Nagios on Solaris LDom and Zone servers

Scott, Ewan wrote:
>
> I am about to put Nagios on both the primary LDom physical servers and 
> all the virtual guest systems which run on them. Similarly I intend to 
> run it on the primary host zone servers and the guest zones running on 
> them.  Is anyone aware of any problems - performance issues? - which 
> can result from this blanket approach?
>

Not enough information to say, but generally, yes, there are a lot of 
issues that *could* result from doing things this way, but you haven't 
provided enough information to guess whether that'll be an issue for you 
or not.

Nagios can be resource intensive, but it's all dependent on what you're 
doing with it (how many hosts, how many services, which version you're 
running, etc.). There have also been a lot of timing issues reported 
with running Nagios in a VM, though I don't know whether those apply to 
Solaris guest zones.

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