Dell DVS Simplified Appliance Tower Reference Guide - Page 13

Delivery controllers: These servers manage and broker the end-user connections to the virtual desktops. Typically, a minimum of two delivery controllers/connection brokers is required for high-availability. Virtual desktop hosts: These are the servers that run the virtual desktop workload and the number of these depends on their capacity and the sizing guidelines of the VDI solution. Load balancers: A minimum of two load balancers are typically placed in front of the delivery controllers to evenly distribute the desktop workload. Shared storage SAN: Shared storage is required to create a centralized storage resource pool for the running virtual desktops, so that in the event of a server failure, a different VM host can pick up the desktop state from the SAN and run the desktops. High-speed interconnects: Typically, for performance reasons, high-speed interconnects are used among these components. While this DVS Enterprise VDI architecture is cost-effective for large deployments, it requires a sizable investment that may not be efficient for smaller deployments. Dell configures the solution for customers and provides a thoroughly-tested, well-integrated appliance. Figure 1: Enterprise VDI While a DVS Enterprise VDI architecture is cost-effective for large deployments, it requires a sizable investment that may not be efficient or ideal for smaller deployments. Either way however, we configure the solution for you and provide a thoroughly-tested, wellintegrated appliance that will fit your needs. Figure 2 below references a Citrix "VDI-in-a-Box" deployment using a grid architecture that makes expansion easy and delivers high-availability (HA) without requiring externally attached shared storage (such as a SAN). This results in a significant cost savings. To expand a VDI-in-a-Box deployment, simply load the Citrix software on additional Dell 10 Dell DVS Simplified Appliance Reference Architecture