Data Reduction for VDI
The basic principle of a Virtual Desktop deployment is to create a virtual image for each user’s environment which contains the operating system, settings, data files and applications that typically existed on physical machines. Assuming a typical desktop image of 10-20 GB per user, it is easy to see that the amount of total storage required can quickly increase with only a few hundred desktops. Virtual Desktop software vendors have overcome the space issue by implementing what are known as Linked Clones, but these come at a cost because they limit the end-user’s ability to customize their desktop, a feature that’s become more important in today’s BYOD world. Considering that large organizations may have thousands of deployed desktops and laptops, it is clear that a more efficient storage strategy is needed to reduce cost and better manage desktop deployments.
Data reduction technology is the solution for VDI storage bloat in both traditional (thick) and Linked-clone environments. By combining deduplication, compression and thin provisioning technologies, Permabit products can yield capacity optimization rates of up to 35:1 savings in thick VDI use-cases and up to 8:1 savings in Linked-clone environments, and they can deliver these reduction rates without requiring expensive-to-manage agents on VDI servers.
In VDI deployment scenarios additional savings can be realized when Permabit data reduction is applied across the settings, data files, emails, images, and other forms of unstructured information that belong to each individual client. In the typical office environment, group sharing applications such as email have resulted in an explosion of file copies among workers. In more collaborative desktop environments where repositories of data are “checked out” by desktop users (e.g., software development or architectural design), the level of redundancy can be even higher.