Microsoft published an independent research entitled "Hyper-V vs. VMware ESC and vSphere: Operations & Management Cost Analysis" which examines which platform is less expensive in IT labour to operate on an on-going basis, and do the systems management products used to manage the environment impact the cost of managing either or both platforms (Hyper-V or VMware ESX). Here's a 'taster' of top-line results:
- Customers running Hyper-V spend 24% less on IT labour, than ESX or vSphere
- Customers using Microsoft system management products had 15.6% lower annual IT labour costs ($9,486) per VM than customers using vCenter ($11,238) and 36.7% lower costs than customers using management products from mix of vendors ($14,988)
- average customer would spend $6,828,142 in IT labour to run 501 Windows Server guests on VMware versus $5,189,233 in IT labour to run same 501 guests on Hyper-V - an annual labour savings of $1,638,909 when using Hyper-V
You can obtain a copy of the full report here (pdf).