Sequel Data Systems – SMB Reference Implementation for Unidesk and VMware View Page 12
Pool Configuration
Virtual desktop pools in the TRWD environment were created to support both persistent and non-
persistent desktops using one of two VMware View pool configurations:
• Dedicated Pools. In this configuration, each user is assigned a persistent desktop that is created
by Unidesk layering technology and automatically added by Unidesk to VMware View dedicated
pools. Dedicated pools are used in cases where a user requires retention of desktop changes
and customizations. The user always returns to the same virtual desktop at each login. Users
can personalize their desktops, install applications, and store data, and all customizations are
retained in the Unidesk personalization layer. Unidesk automatically takes snapshots of this
layer so TRWD service desk staff can quickly undo (repair) any damage caused by user
customizations. Unidesk enables persistent desktops to be as storage-efficient as non-
persistent desktops by sharing a single layer of Windows and corporate applications across
many desktops.
• Floating Pools. In this configuration, the virtual desktop is non-persistent, meaning it is
refreshed after each use and all user customizations are destroyed. Users do not always login to
the same virtual machine each time. TRWD uses this for highly controlled use cases such as
computer labs and kiosks where IT has loaded each desktop with all of the necessary
applications, and folder redirection using the VMware User Data Disk (UDD) is used to access
data on mapped drives.
VMware View PCoIP
TRWD uses the display protocol that is now the most common way to access virtual desktops in VMware
View and Unidesk environments: VMware’s PC-over-IP (PCoIP) protocol. PCoIP delivers an end user
experience equal to that of a physical PC. As a starting point, to maximize use of available network
bandwidth and enhance each user’s experience, IT organizations should follow the recommendations in
the VMware View Windows 7 Deployment Guide.
Other VMware View Components
The TRWD VDI design leverages numerous VMware View components. Below is an overview of each of
the components used to support TRWD’s users:
• VMware View Connection Server: The View Connection Server is a full-featured connection
broker. It is the key element that directs traffic within the architecture as a whole. This is the
component that provides access to the desktop from the end user client device.
• VMware View Security Server: Outside the corporate firewall, in a DMZ, the View Connection
Server can be installed and configured as a security server. Security servers in the DMZ
communicate with View Connection Servers inside the corporate firewall. Security servers offer
a subset of functionality and are not required to be in an Active Directory domain.
• VMware View Administrator: This Web-based application allows administrators to configure
View Connection Server, control user authentication, and troubleshoot end user issues. When a
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