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To Virtualize, or Not

October 2, 2008
by Xcentric

The hot topic in technology these days is virtualization, but there are several different types and meanings. What does all this virtualization hype mean to your CPA firm and how will it affect you? Virtualization is a broad topic, so let’s review only a few of the primary types and their possible impact on your firm.

The most common virtualization technologies are:

Server virtualization — a mature technology that continues to gain momentum. A single host server can run multiple other servers on the same hardware without conflict. The host machine may or may not have its own operating system installed.

Application virtualization — technology designed to reduce application conflicts and improve manageability.

a. Some sources consider Citrix as a form of application virtualization since it allows fully functional applications to be delivered to users almost anywhere. Citrix is more commonly referred to as Presentation Virtualization.

b. Software streaming is the most recent and most popular method, which allows applications to run without being physically installed on the host operating system by being “streamed” to the workstation or server. Similar to how video streaming works on the internet, an app is delivered to a user over a network on demand. The workstation treats the application as if it was installed locally.

Desktop virtualization — also known as VDI, or Virtual Desktop Infrastructure, runs desktop operating systems inside virtual machines. Users access the desktops remotely from a PC or thin client. Users benefit from the ability to remotely access their familiar corporate desktop from any location.

Storage virtualization — allows different types of storage devices, possibly in different locations, to be pooled together into what appears as a single storage device.
One of the strongest benefits of virtualization is business continuity and disaster recovery. Virtualization allows for easier migrations both with systems and software. Other possible benefits of virtualization include reduced downtime for maintenance, whether planned or unplanned, on both physical systems and software, lower capital expense, and more efficient use of hardware resources. Most of the challenges stem from having a more intricate IT infrastructure that requires more elaborate IT management. Virtualization adds complexity and new challenges like support issues, configuration, licensing assurance, backups, and/or security. One thing is for sure, virtualization technology is not plug-and-play. If implemented properly, virtualization will greatly enhance an organization’s business agility. The key to success is gaining a complete understanding of the environment, the need, and the goals, and then matching a virtualization solution to solve those issues.

In conclusion, virtualization is definitely something to consider. Virtualization is not going away, and it’s only becoming more and more prevalent. If you weren’t familiar with any of the virtualization types mentioned above, you’ll certainly hear more about them in the future and can expect subsequent articles with a more in-depth look into each one. Currently, server virtualization is the most prevalent type. It will be a few more years before the other types are quite as popular in the accounting industry. It’s possible for almost any of the virtualization technologies to cooperate well with Citrix, especially because Citrix is offering unique solutions for server, application and desktop virtualization right now like XenApp, XenDesktop, and XenServer.

If you have any questions about the different virtualization technologies and how they may help your organization, please contact Xcentric at info@xcentricgroup.com or (678) 297-0066.

2 Comments leave one →
  1. Michael Lynton permalink*
    October 3, 2008 5:53 pm

    Great article by Mike W.

  2. October 4, 2008 11:36 pm

    Good work. Look forward to more info on Virtual Servers in the future.

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