Hi, I have 2 IBM x3650 and 2 HP DL 380 servers and SAN storage. I wanted to build private cloud for virtualization and VDI with open source solutions without spending money for licensing. I worked lot on vmware, but since its heavy cost I can not opt it. I am very new to open source softwares. Please help me to choose appropriate software/tool to build private cloud for virtualization and VDI Thanks