Does Virtualization Equal ‘Bullet Proof’?
Virtualization has been available to the IT world for more than four decades, yet it has still not really taken off in the multi system environment. Many vendors are pushing this approach to deploying ‘flexible technology’, yet it still has not emerged beyond the ‘glass house’ of the data centers or server closets. IBM invented this technology 40 years ago and Microsoft is pushing this ‘old wine in new bottles’ with their ‘Dynamic IT’ moniker. The Microsoft approach is laid out in “Harnessing the Power of Virtualization for Dynamic IT”, January 21, 2008 by Bob Muglia, Senior Vice President, Server and Tools Business, Microsoft Corporation at http://www.microsoft.com/mscorp/execmail/2008/01-21virtualization.mspx. Still this technology has not taken off for the enterprise. What are the reasons for this deployment stalemate? Some of the reasons and aspects of deploying these virtual technologies are:
- Complexity: This technology is too complex for IT architects, development or operations professionals to understand. They are used to developing systems that provide tangible functionality in a tangible way in environments that can be measured and managed. There are not many adequate tools to manage virtual and physical environments together.
- Security: Whenever anyone says the environments are very flexible and unconstrained, I know there is going to be a security and control problems. Today, it is so difficult to keep the ‘hatches batten down’ against security, compliance or confidentiality breaches in tightly controlled rigid environments. All the senior IT executives that I work with are under the ‘Sword of Damocles’ to keep their organizations safe and sound. Why would they want to move to this still to be proven technology that can potentially move their computing from the mainframes and servers to across their networks to all the desktops in their organization? Don’t you think there will be some ramifications if a major chunk of confidential client data gets mixed into some ones instant messaging or email stream?
- Unified Communications: A large part of this technology relies on unified communication systems. These are most often managed by telecoms without the full integration, and bandwidth and hardening required for industrial strength IT operations and consolidation of all the virtual resources across the organization. This represents a huge loss of control for IT.
While is true that there is great promise for virtualization, its’ time is still not quite here, except for data centre rationalization, storage farms and server consolidation. The dream of running all resources in a ‘big basket’ is not ready for prime time.
Again there is much promise in this technology that will make IT more cost efficient, responsive and flexible… More work is required to assure the IT buyer that this technology is very robust and secure. The underlying complexity and security management issues require better unified management, security and control technologies systems to make virtualization ‘bullet proof’. Enterprise customers really need something that can be taken for granted to make it feasible to run across their large operations.