question about running Nagios on Solaris LDom and Zone servers

[Litwin, Matthew]

I just pacakged up NRPE and it conveniently installs on all the zones.  
Today I get it going on SMF.

Sent from my iPhone

On Jan 13, 2010, at 2:01 AM, "Scott, Ewan"  
<EWScott at scotborders.gov.uk> wrote:

> Matthew
> Thanks for this. I am going to have to give consideration to exactly  
> the same things you already have, so what you've written will be  
> helpful.
> Regards
> Ewan
>
> -----Original Message-----
> From: Litwin, Matthew [mailto:mlitwin at stubhub.com]
> Sent: 12 January 2010 19:01
> To: Scott, Ewan
> Cc: Morris, Patrick; Nagios Mailinglist
> Subject: Re: [Nagios-users] question about running Nagios on Solaris  
> LDom and Zone servers
>
> I am looking at the same situation myself and have decided that I am  
> going to have to run NRPE on each zone lest I rewrite all my  
> plugins. Now I am deciding which checks should run on the LDom and  
> which on the zones. It seems that disk checks are are good first  
> choice to run on the LDom only, especially since there are already  
> plugins on Nagios Exchange to do this (check_zpools.sh and such). I  
> am trying to figure out what would be the best way to just use the  
> LDom for CPU and load checking, but I don't see any plugins that  
> would be able to give zone specific results.
>
> Aside from performance concerns, the main concern I am having is  
> about how Nagios runs the checks and therefore how it organizes it.  
> The whole LDom model breaks the Nagios host model of organazing  
> things by host and in order to preserve this you pretty much have to  
> make a new set of entries in command.cfg that can map your host  
> names to zone names so that while you are running the commands  
> against the LDom Nagios organizes the resultant data by the proper  
> virtual host name and not just dump everything under the LDom host.  
> This will be some work and will add yet another layer of complexity  
> to an already complex system.
>
> I am not sure if any of this will be helpful, but it sounds like are  
> trying to do the same thing.
>
> Here are some other resources that I stumbled upon so far which  
> should be helpful as well:
> https://s23.org/wiki/Nagios/checks/solaris_zones
> http://stig.prod.dbs.melbourneit.com/
>
> On Jan 12, 2010, at 2:41 AM, Scott, Ewan wrote:
>
>> 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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>
> Thanks,
> Matthew Litwin
> mlitwin at stubhub.com
> 415.222.8475
>
>
> **********************************************************************
> This email and any files transmitted with it are privileged,  
> confidential and subject to copyright. Any unauthorised use or  
> disclosure of any part of this email is prohibited. If you are not  
> the intended recipient please inform the sender immediately; you  
> should then delete the email and remove any copies from your system.
> The views or opinions expressed in this communication may not  
> necessarily be those of Scottish Borders Council.
> Please be advised that Scottish Borders Council's incoming and  
> outgoing email is subject to regular monitoring and any email may  
> require to be disclosed by the Council under the provisions of the  
> Freedom of Information (Scotland) Act 2002.
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