The real Slim Shady
The subtlety that gets lost regarding server virtualization is that a virtualization cluster is based on [near] identical hardware. The first machines that were virtualized where the ones who’s computer and storage requirements could be met by the hardware that the cluster was based on. These tended to be the applications that were not vertically scaled. The business-critical vertically scaled applications continued to demand special treatment, driving the overall infrastructure deployment model used by the enterprise.