If you work with virtual machines, I suggest to you to give a watch to Proxmox is a debian based distro

Features:

• Complete operating system (Debian Lenny 64)
  
• Partition the hard drive with LVM2
  
• Proxmox VE Kernel with OpenVZ and KVM support
  
• Backup/restore/migration tools
  
• Web based management interface
  
• Runs on bare metal systems, i.e. without any requirements as to previously installed software or operating system.
  
• Uses hardware and OS virtualization on the same host
  
• Replaces more costly solutions

pve.proxmox.com/wiki/Main_Page
en.wikipedia.org/wiki/Proxmox_Virtual_Environment
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