What is Proxmox?

For those who yet not familiar with, Proxmox VE is a great web front/system for underlaying virtualisation environment (KVM/qemu and OpenZV both supported). One of its nicest features is that it can work in a cluster mode. Add iSCSI storage to that and You end up with a nice cloud like solution for running virtual machines (VMs).

What is also great, not only Proxmox provides us with decent web GUI, but it also capable to use various storages and do online backup of VMs. It also can do live migration of VMs between cluster nodes which is superb when we talk about serious scenarios.