Desktop Virtualization: Opportunities and challenges

Http://www.aliyun.com/zixun/aggregation/14402.html "> Desktop virtualization Deployment is difficult and not necessarily cost-saving. So before you start, it's important to understand the challenges of virtualization.

Now based on mirrored OS deployments, patches, and personalization, it is easy to implement with well-known Windows local profiles and is also very stable. On the other hand, desktop virtualization increases the complexity of providing Windows desktops and applications.

Fortunately, new technologies, such as virtual GPU (graphics 處理 units) and work area management, appear in the virtualization arena to help IT staff overcome some of the challenges.

Desktop Virtualization Complexity

Switching to non-permanent desktop mode increases the complexity of the virtual desktop while reducing overall cost of ownership. Desktop virtualization to achieve the desired results requires a lot of technical layers of synergy. In addition, attempts to simplify application delivery by applying virtualization can also have problems of its own, including performance degradation and communication and conflict between virtualized applications and non-virtual applications.

Because the virtual desktop does not meet user personalization requirements, it also leads to a refusal to switch to non-persistent desktop mode because it changes how they work in the physical desktop environment. The reasonable placement of personalized file data through ancillary products also increases the complexity and cost of virtual desktops.

For example, desktop virtualization can include the following technology stacks: storage, computers, hypervisor, virtual Desktop OS, virtual desktop applications, virtual desktop personalization, broker, remote protocols, terminal device OS, peripherals, terminal applications, and end-user personalization data. All of these components need to work smoothly together, and it is possible that each technology layer is held by different IT personnel, further adding to the complexity.

Desktop Virtualization Costs

Most desktop virtualization installations now migrate computing resources from terminal devices to data centers. Companies choose to replace Low-cost PC solutions with high-performance servers in data centers that are tightly controlled for power and temperature.

In many deployments, the enterprise also employs shared storage, and the cost of the component itself is very high. Typically, the cost of 40% of desktop virtualization systems is spent on storage. Many companies expect the overall cost of desktop virtualization to be comparable to the deployment of a traditional PC.

Vendors make a lot of promises about how desktop virtualization can save operational costs. These cost comparisons are usually based on non-persistent desktop delivery patterns, which is the most difficult approach to implement. Replacing lower-paid desktop support staff with experienced and working-age virtual Desktop administrators can offset some of the cost savings.

The user experience of desktop virtualization

In addition, it is difficult for IT departments to make predictions and metrics about the user experience. Migrating a desktop or application from a terminal device to a data center can affect the user experience. Poor LAN or WAN conditions can also harm the user experience of remote desktops and applications. Applications that used to be fully operational locally, with certain resources, may respond poorly when they are centralized in the datacenter. Applications that have offline access requirements also increase the complexity of the virtual desktop architecture design.