For a few years, the main rationale for virtualization has been consolidation of poorly used server resources.
Take a bunch of applications that are barely using the servers they're running on, pop them into virtual machines, and have them share a single physical machine.
It took a little longer for people to get their head wrapped around using VMware for larger, enterprise-style applications. I mean, if you weren't going after massive consolidation, what was the point?
There was still a strong rationale for virtualizing, but it pointed more to fast provisioning, being able to relocate running applications, exploiting things like DRS, HA and SRM, and so on.
Still a good thing to do, but for a different set of reasons.
And now, over the last few weeks, evidence has begun to emerge that -- well -- maybe it IS the case that there's a consolidation benefit as well for these enterprise-style applications.
And the results are eye-opening to some of us ...
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