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Virtualization and Business Critical Apps

virtualizationVirtualization has been, in many ways, a great boon to many businesses and organizations. Virtualization allows companies to be able to get the most bang for their hardware buck, reduce their data center footprint and even cut costs for things like power and cooling.

However, one of the biggest, and perhaps the most important, issues has been the issue of trying to insure that business critical applications will perform the way they need to perform in a virtualized environment. Indeed, it is this issue that has kept some organizations from being 100 percent virtualized.

This challenge, which has not truly been addressed fully, presents some very specific requirements from virtualization. Specifically, in order to virtualize business critical apps, here are some of the things that need to be in place:

•    The system must be able to track response time, along with allowed variations, for the application, in order to ensure appropriate service levels.

•    A virtualized environment for business critical applications has to understand relative priorities. For example, two applications might have the same service level requirements in terms of response time, but that doesn’t mean that one isn’t more important – perhaps significantly so – to the business.

•    The environment has to be measured in such a way that you can determine how constraining the system might be in terms of response time.

•    Resources that could potentially create a bottleneck should be made to be put to their best use. The application that’s more important should get the resources that will most greatly impact performance.

•    Service levels must not be hindered by configuration events or by config mismatches in the process of being moved into the virtualized environment.

•    The planning team should be able to effectively track and manage capacity not only for the existing applications in the virtualized environment, but also accurately predict what impact adding the business critical application might have on the system.
Until organizations are better equipped to meet these specific kinds of needs for business critical applications in a virtualized environment, it’s likely that there will always be some need to cordon off business-critical apps in order to preserve necessary service levels.

-The Modern Virtualized Data Center

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Unitiv, Inc., is a professional provider of enterprise IT solutions. Unitiv delivers its services from its headquarters in Alpharetta, Georgia, USA, and its regional office in Iselin, New Jersey, USA. Unitiv provides a strategic approach to its service delivery, focusing on three core components: People, Products, and Processes. The People to advise and support customers. The Products to design and build solutions. The Processes to govern and manage post-implementation operations.