Virtual desktop infrastructure deployments: The pros and cons of VDI

With VDI technology, desktops can be virtualized in a data center, making desktop management much easier, but be aware of the cons of VDI.

For storage managers, virtualizing desktops should be a real concern because all of the operating systems, applications

and data currently residing on desktop and laptop PCs will need to find a new home in the data center storage environment. The required storage resources, as well as their ongoing management and administration, could be staggering.

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Virtual desktop infrastructure (VDI) has the potential to cure this ongoing IT ailment by moving desktops into the data center. Instead of booting a local client-side operating system, users connect via a browser or thin client to a virtual desktop that runs as a virtual machine (VM) on a server in the data center. Consequently, ownership of the desktop transfers from the user to IT and, by centralizing desktops, the long list of daunting desktop management tasks is greatly reduced.

However, as with any technology, deploying virtual desktop infrastructure has its pros and cons. The following is a list of VDI the pros and cons of deploying VDI.

Any virtual desktop infrastructure deployment consideration needs to start with a thorough return on investment (ROI) analysis that weighs desktop management and compliance benefits against the cost of deploying and maintaining a VDI infrastructure.

Because IT is more likely considered a necessity rather than an asset at small- and medium-sized businesses (SMBs), virtual desktop infrastructure may not be an option for these types of firms with their limited IT teams and modest data centers. As VDI service providers mature, outsourced virtual desktop infrastructure and VDI in the cloud will become viable options for smaller firms.

When evaluating a virtual desktop infrastructure platform, focus on advanced features, such as offline support, linked clone-type capabilities for efficient use of storage and simplified management, as well as application virtualization capabilities. These are the areas where you get the biggest bang, but it's also where products differ the most.

Keep your mind open to mixing hypervisors and VDI products. While there's a small benefit to having all components from a single vendor, mixing and matching different vendors to get best-of-breed products or the most cost-efficient combinations is a valid and prudent option.

Start with a small number of desktops and grow your virtual desktop infrastructure footprint from there. Because it's such a radical change, a gradual rollout that includes frequently reassessing the project and making adjustments will increase your likelihood of success.

This article originally appeared in Storage magazine.

About this author: Jacob Gsoedl is a frequent contributor to "Storage" magazine.


 

This was first published in September 2009

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