Proxmox is one of the best shells in the form of a web interface for openvz and kvm (as I would like to see a good analogue for centos, they say it will be opennode).
Conveniently, it can do different things for authorization, for example, ldap, setting up various roles for users. Also proxmox can work in a HighAvailability cluster, by the way, who uses proxmox? Is it possible to distribute the load across the proxmox nodes automatically? I switched to proxmox after redhat stopped supporting xen.
The new release is based on Debian 7, and says uefi is supported (thank God I haven’t met it on servers).
It seems that the virtual machine cloning mechanism has appeared, it seems to be a convenient and trivial thing, but so far there has not been.
You can upgrade from 2.3 to 3.0
pve.proxmox.com/wiki/Upgrade_from_2.3_to_3.0Can be put on pure Debian 7 (Wheezy)
pve.proxmox.com/wiki/Install_Proxmox_VE_on_Debian_WheezyDownload iso (references to the third version at the very bottom)
www.proxmox.com/downloadsChangelog
pve.proxmox.com/wiki/Roadmap#Proxmox_VE_3.0In the week I will start trying to upgrade my servers with proxmox and try to write more about the changes already from real experience.