Do you use proxmox, is anyone in using OpenStack ? I am looking for a solution that allows me to utilize 4x 1u dual quad core as an internal lab for development work. I currently have 2 quad cores running headless virtualbox and they both run like a champ however getting a new instance up does take a bit of time. I have looked at all sort of solutions of the last few weeks and have come to Proxmox or OpenStack. I have looked at CloudStack but I have yet to talk to anyone who has a working install.