Hi Miss Julia,   a couple of points in my view are like  a.  Memory Page sharing  is limited in comparison to VMWARE or RH.   Secondly, needs to improve in the Browser based management. 

Hi Sridhar,    This is Rajkumar Gera, VP IT  in one of the Telecom. Below are some of the points, may help you:  FEATURE RED HAT ENTERPRISE VIRTUALIZATION VMWARE VSPHERE Key differentiators Open source solution…