> The best virtualisation of a cow is a cow itself.
Thanks for your great analogy! I've heard that the european milk is economically viable for the first time in post-war history. That must be the reason for the big interest in vitualisation
> There are no problems with moodle inside a vps except for performance. A virtualizised cow can't give that milk a real cow can.
If we stay with your anlogy I would say one can't see any differnce between "real" milk and the "virtual" milk. The formula one should keep in mind that the total amount of all the cattle, virtual and real, will never be more that that of the mother cow. ;-}
By the same token, VMware and similar tools a great for test environments (except when you are testing performance, of course). Virtualisation is amazing for development, testing and QA purposes. On the same HW you can have a few dozen VMs, each with a different flavour of Windows and IE. You might have pay a lot for the licenses, but if you have an ISV account with MS you can probably get a special deal for that.
We run our production Moodle install under win2k3/IIS under VMWARE - the biggest thing to be careful with is to make sure that it has enough resources that aren't consumed by other services on the box. We have noticed a performance hit though like Martín mentions..
I have made and released moodle 1.8.4 running in a vmware server.
Gnome 2.x (for those who need a gui)
webmin(lightweight web admin interface)
If you would like more details please message me via the boards.