scalability of hobbit/xymon ?

Hi,

In my company, we are currently monitoring ~7000 devices (unix, microsoft, network, firewall, storage) in 13 datacenters in different countries (Spain, Italy, Germany, Belgium, France, Amsterdam, Belgium, UK).

The architecture is simple: one hobbit cluster using Heartbeat in each datacenter (= 13 clusters) reporting to a central cluster by bbproxy and some custom scripts to concatenate/consolidate the bb-hosts files correctly.

My question is for the future, we need to support 20 000 devices and i would like to know if hobbit is able to do that. (scalability). Indeed, my company doesn’t trust that it’s possible, and they want to move to HP BSM or EMC Smarts .... :-(

Any experience about that is welcome.

Regards, Nico