perfsonar development work

[Jochen Reinwand <>]

Hi Nicolas,

regarding HELL:
We had the (simple) idea to build a Linux live system based on e.g. Knoppix 
containing at least our measurement tools and perfSONAR services. That means 
that you get a CD or DVD you put into your Computer and it comes up with all 
measurement tools (e.g. BWCTL, OWAMP, Hades) installed and useable and all 
perfSONAR services running. Doing this for the complete perfSONAR framework 
is really a good idea!
A "perfSONAR live system" should be modular and distinguish between MP and 
MA. 
A MP can easily be set up on some machine out there and provide at least 
simple services. Further features mainly depend on the hardware (e.g. special 
interface cards and GPS synchronisation). A MA on the other hand has a 
completely different scope. You normally need only a view machines running 
MAs, but the MA needs (lot of) permanent diskspace for the data.


Some notes regarding VMWare: The main problem using VMWare are the hardware 
requirements of especially the MP services. GPS, special NICs and so on have 
to be accessable reliable enough and the emulation most likely has a 
performace impact on e.g. one-way delay measurements.


Another simple way of quickly deploying services would be some sort of 
embedded system. A small and cheap box fully configured (software and 
hardware). That would most likely be the most "powerful" solution since you 
can guaranty that the hardware (NIC, GPS, RTC and so on) perfectly fits the 
needs of the perfSONAR services. But it might not be easy to find this sort 
of "perfect" hardware for perfSONAR services in the embedded world...


greetings,
Jochen

On Wednesday 30 May 2007 17:43, Nicolas Simar wrote:
> Hi,
>
> several users have asked to have something really simple for installing
> perfsonar web-services.
> As way of facilitating means, I have heard of HELL (DFN plan) and VMWare.
>
> Could someone explain me:
> a) what is HELL
> b) what is its difference with VMWare
> c) are there other system that could allow someone to deploy quickly and
> easily some tools.
>
> Thanks a lot in advance.
>
> Best regards,

-- 
Jochen Reinwand                                 Tel: +49 9131 852-8689
DFN Labor

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