Creating your first architecture
Now that you have conducted an assessment of all the relevant components in your existing environment, it is time to create your first architecture design. This will be composed of Citrix XenApp, StoreFront, Provisioning Services, XenServer, and NetScaler, and it will attempt to resemble real-world scenarios as closely as possible. Some components, such as NetScaler, are optional, albeit strongly recommended and will be marked as such throughout the book. So let's start with creating a description of the specifications of the environment. You can skip the next subsection on physical hardware if you already have a hypervisor in place.
The host hardware
To host hypervisors, you can use any enterprise servers that are certified by your hypervisor vendor. Citrix, VMware, and Microsoft have a Ready program that thoroughly tests and certifies hardware (visit http://www.citrix.com/, http://www.vmware.com/, or http://www.microsoft.com/ for more information)....