For anyone looking to build a clustered virtualization solution, I recommend checking out Googles Ganeti: <a href="http:&#x2F;&#x2F;www.ganeti.org" rel="nofollow">http:&#x2F;&#x2F;www.ganeti.org</a><p>It doesn&#x27;t look like much, but is rock solid and supports everything Proxmox does and more, save for the lack of a built-in web UI (but there are several 3rd party ones, as Ganeti is 100% API driven).<p>No affiliation, but have successfully deployed it at multiple sites (and would love to do so again, wink wink).