I just set up a debian server for websites but now I need to install a windows server on the same machine because I need to run a game server (windows-only). Virtualbox is already installed on my machine, I already set up a ubuntu-desktop on the server for personal-use (rarly powered on).
My question is: Is it okay to install the windows server in a virtualbox-machine or will that kill the performance? The other way is to install Xen as a hypervisor and 2 (or 3) guests: debian server, windows server, (and ubuntu desktop). But then I guess I have to do all the configuration on the debian server again.
The windows server should have fixed ram and the debian server should be able to use the rest. The ubuntu-desktop should only block it's assigned ram as long as it is powered on, because it'll be powered off most of the time. As far as i know with Xen every machine has fixed ram, so the ram assigned to the ubuntu machine will be unusable if it's powered off.
Can someone tell me if I should stick to VirtualBox or is VBox not suitable for servers?