110 Key Differences Between Desktop and Server Virtualization Deployments
by Chris Preimesberger
2Predictable vs. Unpredictable Workloads
The load on a virtualized back end is quite predictable. While it’s important to be able to move a server application from one hardware platform to another while running—through vMotion, for instance-desktops can be moved when the user is signed off and the desktop is idle.
3Storage Is Handled Differently
Tier 1 storage for server applications often requires a high-speed SAN infrastructure to access data across disparate data stores. Tier 1 storage for virtual desktops can be simple DAS configured in server-based RAID, a less costly proposition.
4GUIs Have Different Needs
Getting the GUI right is critical for a virtualized desktop user. Virtualized servers often have no direct interaction with the end-user community. The use of the SysAd command line is fine in the former, but an anathema in the latter. Ideally, end users would not need to know or care where the computing resource actually is.
5Workload Differences
A virtualized server adds no appreciable networking load to the data center. A virtualized desktop operates entirely over the network. Getting the networking right is critical.
6Integration Differences
A VDI must integrate seamlessly with the existing physical desktop infrastructure. Security, networking and authentication devices have all been optimized within budgetary, regulatory and compliance constraints. By contrast, server virtualization is a consolidation effort confined to the data center.
7Organization Changes Differ
Desktop virtualization requires organizational change. The end-user support organization must function within the data center. Server virtualization requires an upgraded skill set, but the organizational structure is unchanged.
8VDI Requires Changes to More IT Resources
Virtualized server performance varies depending on factors that are largely controlled within the data center. Virtual desktop performance can be affected by the data center, network and transmission protocol. In addition, diverse user requirements can also affect performance.
9VDI Requires Changes to More IT Resources
Virtualized server performance varies depending on factors that are largely controlled within the data center. Virtual desktop performance can be affected by the data center, network and transmission protocol. In addition, diverse user requirements can also affect performance.
10VDI Requires Changes to More IT Resources
Virtualized server performance varies depending on factors that are largely controlled within the data center. Virtual desktop performance can be affected by the data center, network and transmission protocol. In addition, diverse user requirements can also affect performance.
11VDI Requires Changes to More IT Resources
Virtualized server performance varies depending on factors that are largely controlled within the data center. Virtual desktop performance can be affected by the data center, network and transmission protocol. In addition, diverse user requirements can also affect performance.
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