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When it comes to VDI implementation, organizations can choose between hosting virtual desktops on premises and hosting them on the public cloud.
Benefits of on-premises desktop hosting
Wider range of software choices. One of the benefits of on-premises hosting is that IT pros have the freedom to choose whichever software works best for their organization. Organizations can select from a range of vendors, including Citrix, VMware and Microsoft, for their virtualization software.
Some cloud-based virtual desktop providers force customers to use specific desktop image sizes or versions of different OSes. When an organization hosts its virtual desktops on premises, it remains in control of these factors.
Stronger control over back-end infrastructure. Another benefit of on-premises hosting is IT's access to all aspects of the back-end hosting infrastructure. IT professionals can use whatever management, monitoring and capacity planning tools they desire. They can also make low-level configuration changes to the infrastructure when necessary. In contrast, cloud providers often hide the underlying infrastructure from view and force subscribers to use proprietary management tools.
Minimizing latency. Perhaps the biggest benefit of on-premises hosting is the ability to minimize latency. When an organization hosts virtual desktops on premises, the users have direct, high-speed connectivity to their virtual desktops. Any existing latency should be negligible.
When an organization hosts virtual desktops in the cloud, users' traffic must compete for bandwidth on a WAN link that could be congested. There is also a much greater chance for network communications to encounter significant latency because the virtual desktops are located remotely.
More cost certainty. On-premises VDI deployment delivers predictable costs. Conversely, cloud providers bill subscribers based on the resources that they consume within a given month. This means that cloud-based desktop subscribers' costs can vary widely as user workloads fluctuate.
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