Basically we looked at server costs of two big boy servers and a SANS versus the cost of purchasing new physical boxes for replacing what we had and adding in new servers. Truthfully, the money by itself was not a major selling point. So we added in some real things and some intangibles. For example, virtualization would provide better use of hard disk space, memory and CPU power, thus allowing each dollar spent to be better utilized. Less servers means less power usage over time as well as less heat generated which translated to less cooling. Two virtual servers with a RAIDed SANS looks good for disaster recovery for everything except major things that would wipe the building. A second phase would be to buy a second SANS and move the second machine to a co-lo; but we're not there yet.
Another positive is the ability to adapt rapidly to server needs. We always have enough licenses in place so the major hold up to any new server roll-out or testing that we need to do is the physical box. WIth virtualization, we just create a new server and we're off and running.
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by: ryder0707Posted on 2009-11-03 at 17:01:05ID: 25735537
There are a lot of case studies available from vmware actual customers
Go to http://www.vmware.com/a/cu
Hope that helps...