3 years ago

Desktop Virtualization and Evolving Strategies for IT ... - Eddie Jackson

Desktop Virtualization and Evolving Strategies for IT ... - Eddie Jackson


Desktop Virtualization and Evolving Strategies for IT Service DeliveryJaime HalscottChapter 3: Integrating Legacy andEmerging Technologies into IT ServiceDeliveryAny business will have some holdover legacy technology to support even in a completelyrevamped service delivery‐based virtual infrastructure. Integrating the legacy componentsin as complete a way as possible will help limit the costs associated with the project overall.Businesses must be sensitive to carrying forward only the right items and understandingwhere the infrastructure will have to be overhauled to support desktop virtualization.Trying to integrate technologies and solutions just for the sake of reuse can lead to greatlyincreased costs, particularly in terms of support, which is what desktop virtualization ismeant to reduce. Embracing the end user service delivery goal will require a thoroughunderstanding of how these legacy and emerging technologies fit to allow the most costeffectivemeans for building evolving service delivery models.The first chapter looked at the goal of end user service delivery and how desktopvirtualization helped to meet that goal. To do so required a step back in thinking toevaluate how users interact with their desktops and then apply this knowledge toeffectively leverage desktop virtualization. As part of that journey, we were able todetermine where desktop virtualization didn’t fit particularly well. This critical recognitionthen shaped the conversation surrounding desktop virtualization. Instead of looking atdesktop virtualization as a destination in service delivery, we were able to see it as a pieceof an evolving service delivery strategy.The second chapter reviewed the legacy components that are already a part of mostnetwork infrastructures and explored where to place them in a desktop virtualizationmodel. This important step made sure that any new infrastructure met the goals withoutunnecessarily making new purchases or attempting to fit components into a VDI build outthat weren’t right for the project. The emergence of the cloud, with all of the buzzsurrounding it, as a possible part of the desktop virtualization and service deliverydiscussion meant that we had to take into account this new paradigm and the possibilitiesof hosted VDI.Along the way, we saw that some of the promises of hosted VDI need technologies thatdon’t yet exist. This chapter will take a forward look so that you can see where solutionslike hosted VDI will make sense. Additionally, we are going to see what critical technologiesare needed in order for desktop virtualization to become a larger part of a service deliverystrategy.29

Desktop Virtualization and Evolving Strategies for IT Service DeliveryJaime HalscottThis chapter will build upon the lessons learned in the first two chapters to determine howto build a successful VDI that meets the goals of end user service delivery withoutoverreaching as a solution. We are going to apply the lessons learned earlier to allow us tobest leverage desktop virtualization as part of a continually developing series of servicedelivery methods.One of the keys to desktop virtualization is to understand the limits of technology nowwhile anticipating what is coming in the near future. The market is constantly changing asvendors see how businesses want to leverage desktop virtualization and then help adaptthe technologies to work where they haven’t quite been a good fit yet. This chapter willexplore where natural progressions in technologies will enable greater use of desktopvirtualization.This chapter will conclude with a solid explanation of what can be done now to maximizean investment in desktop virtualization and what to expect in the near future. Thisunderstanding will provide a means to determine whether desktop virtualization is theright service delivery technology for your organization—or will be as the technologiesunderpinning it mature.Lesson 1: Finding the Right Ingredients to Make It WorkAt this point, you have been able to review existing solutions in both virtual and physicalinfrastructures. When we began this journey, we started with a comparison of servervirtualization and desktop virtualization. This seemed natural because the lessons learnedwith server virtualization were thought to translate to desktop virtualization in the sameways. We found out quickly that such wasn’t the case. The end user experience that meansso much to the success of desktop virtualization was the critical difference.We next looked at how virtual desktops and physical desktops fit into service delivery andwhat this meant for your organization. Transitioning from physical desktops to virtual oneshad a theoretical payoff in terms of reduced total cost of ownership and support. However,depending on the means in which the transition occurred (that is, virtual desktop accessfrom a physical desktop, thin clients, and so on), the returns on investment and how well anorganization could meet the reduced support costs goals varied wildly.Towards the end of the second chapter, we investigated how physical desktops fit into theequation. What do you do with all of the legacy desktops that you have? This questioncreates a big problem for IT architects when trying to determine what solutions from thephysical infrastructure can be used to support the virtual infrastructure.30

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