ROI Analysis: Virtualization

摘要

ClOs are always skeptical of ROI-driven initiatives that don't have hard cost savings associated-productivity gains that never materialize can haunt you for years. Virtualization does have measurable savings in power, space, and cooling, but it's difficult to pinpoint an exact tipping point where hardware and software costs are offset. So we asked Brad Krick, manager of technical support configurations at GreenPages, to provide some cost analysis. Krick's assumptions: A company must replace 10 aging servers and their associated data storage. We specified standard Hewlett-Packard servers and VMware ESX enterprise licensing. We didn't add in the common components of all three: tape backup, Microsoft licenses, or installation. You would probably see tower initial installation costs to convert 10 physical servers to virtual versus migrating apps to new physical boxes.