Linux Box monitoring solution

[Arthur H. Johnson II]

On Tue, 2009-12-29 at 22:36 +0530, Jatin wrote:
> Hi all
> 
> I am a performance test engineer. I am into performance testing of 
> network management products. I am looking out for an open source product 
> that can monitor all my linux boxes. I basically need the following:
> 
> 1. To monitor all the linux boxes in my lab using a single UI remotely
> 2. Would require all the system level resource utilization parameter as 
> well process level resource utilization parameters.
> 3. Tool should allow me to configure the intervals at which the required 
> data should be sampled from the linux boxes.
> 4. Parameters such as CPU , Memory , Network , Disk I/O and process 
> utilization are the most important things that i am looking for.
> 
> Please suggest me some useful open source tools that can do all these 
> things.
> 
> Thanks
> Jatin
> 

I've done all this and more with Nagios, but it requires some serious
hacking to get it to do things like load monitoring, diskio, etc.