Server Virtualization Gut Check
Quickly creating virtual machines to support a new application or run a test is relatively simple independent of the flavor of server virtualization. A couple clicks of the mouse and you are on your way. Time is also greatly reduced if you use a “golden image” which will save you from going through the OS install (which is like watching paint dry). So, server virtualization is easy…right?
While creating new virtual machines once the architecture has been deployed IS relatively easy, implementing the new architecture is NOT as straightforward. If I was still an IT Director, these are the kind of questions I would want answered:
- Which server virtualization solution am I going to choose? Can I choose more than one? While VMware still remains the leader, what about the others? Microsoft Hyper-V, Citrix XenServer, Oracle VM, Sun xVM, Virtual Iron, Parallels Virtuozzo, Xen…… the list is getting lengthy!
- Besides the physical servers, what other pieces of infrastructure do I need to consider? Can I repurpose equipment and leverage existing investments or do we need to procure new equipment? I see IT shops all too often jump into server virtualization and forget about the other pieces of infrastructure like network and storage until they run into a problem.
- Can my current IT team design, test, implement and manage the new infrastructure or do I need to hire new resources or re-train my staff? Virtualization enables mobility, flexibility and agility, but there is no hiding the fact that it adds an additional layer of complexity. The up front work will require some level of training and /or external consulting depending on the size of the project. Remember what they say: “Without a plan, plan to fail.”
There are no easy one-line answers to the above questions, but it is important that IT organizations are aware of the choices available and have a clear understanding of the impact server virtualization will have across the data center. The one thing that is very clear is that server virtualization is here to stay and it is now a major initiative in nearly every data center.


