vSphere - the only infrastructure you would need...

Over the past couple of years, I've contacted vSphere support services and the service was admirable, fast, and thorough.

When managed via vCenter, distributing virtual machines amongst distributed resources is the most powerful aspect of this product. It allows administrators to maximize value from hardware purchases and create internal redundancies and high availability.

The primary reason why we're leveraging vSphere is to consolidate our workloads and realize the other benefits that virtualization provides. For example, create HA or VM-level HA to facilitate DR. Essentially, we use vSphere for all of the reasons that people use a virtualization layer. Apart from having HA/DR capabilities - been able to vMotion servers (in real-time) to multiple other hosts (including different clusters/sites) which would act as easy management for backup and security.