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Heterogeneous Virtualization Trends at Gartner Data Center

Heterogeneous virtualization has been a hot topic among clients and last week at the Gartner Data Center conference in Las Vegas I presented a session on the subject. During the session, I polled the audience on their heterogeneous virtualization plans. Fifty participants responded to each polling question. The first question I asked was about the current hypervisors that were deployed (note that the values are the number of respondents and not a percentage).                 As you can see, most participants used VMware vSphere as expected, and there was a good mix of Hyper-V, XenServer, and some RHEV and Oracle VM. It’s one thing to have multiple hypervisors, but not everyone is using multiple hypervisors to run production server applications in their data centers. That’s why I asked attendees which hypervisors they were using to run production server applications.                   Notice that the drop was pretty significant. In the first poll, 44 non-VMware hypervisors were used. In the second poll, that number dropped to 25. The drop is consistent with an important but often unreported multi-hypervisor trend – while most organizations are using multiple hypervisors, most are not using multiple hypervisors for their production server applications (Oracle VM is a common exception). The second or third hypervisors deployed within an organization are often used to support branch office or departmental deployments. The fact that the additional hypervisors are being used is important, but so is understanding the use cases. With that in mind, I also asked attendees about their plans for a single hypervisor.                   Most (57%) planned to use a single hypervisor for production server workloads that required DR, with DR simplicity being the primary driver behind that decision. Clients frequently tell me that they fear that multiple hypervisors will recreate some of the same DR challenges that they initially solved with server virtualization. In addition, the OPEX concerns are real. Clients doing heterogeneous virtualization today almost always have a separate management silo for each hypervisor. When political or geographical issues preserve IT silos, the per-hypervisor silos might not be too big of a deal. However, organizations looking to be more centralized and efficient should aim for higher degrees of standardization. Does this data mean that VMware wins? Not necessarily. I’ve had many calls with clients that are considering to switching to Hyper-V as their standard virtualization offering. That switch will take place over a 3-5 year period, with the end goal of having a homogeneous virtualization layer. If VMware is smart, it will focus on the OPEX and DR benefits...

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Desktop Virtualization Trends at Gartner Data Center

          At the Gartner Data Center conference in Las Vegas last week I asked several polling questions regarding desktop virtualization adoption plans and trends, and thought that they were worth sharing. Note that the poll was taken in my session on “Desktop Virtualization: Tales from the Trenches,” so the audience was already at least considering the technology. The first question I asked was regarding business drivers.                 As you can see above, the majority of respondents wanted to use the technology to reduce TCO, while giving users a “Follow-me desktop” was a close second. We have multiple clients that have been able to reduce TCO 10% or higher, so the expectations are legitimate. The next polling question looked at virtual desktop adoption goals.                 Note that 11-30% seemed to be the sweet spot, while other organizations had more aggressive targets, and some had less. We talk to many clients that are using virtual desktops for a variety of use cases, so the range of answers was expected. Some healthcare organizations see the technology reaching the majority of their doctors and clinicians. Other verticals are using virtual desktops for remote worker and remote office support. In fact, I spoke to several clients at the conference who were expanding to Eastern Europe and the Asia Pacific regions. They didn’t want to hire any IT staff to manage the remote offices, so the virtual desktop was a sound investment for them. I often get asked about virtual desktop vendor preferences and the survey respondents pointed to a near even split between Citrix and VMware, along with growing interest in Microsoft.                 We still see Citrix having a slight edge among Gartner clients that we speak with each day; however, Citrix should take note of the poll response that several organizations see VMware as a capable alternative. Note that the poll sample was from 105 conference attendees. The last question that I had asked was about storage preferences. This question was a little more involved and about half of the poll participants responded to this one.                         Attendees could select multiple options, and while the enterprise storage array features were expected, the interest in the native hypervisor features such as IntelliCache and View Accelerator was a bit of a surprise. However, virtual desktops are capex-sensitive and when native platform technologies can be used, it’s a logical first option. Still, oftentimes specialized storage is closely evaluated by organizations looking to reduce their storage...

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