- About this release
- XenApp administrators
- XenDesktop administrators
- System requirements
- How do I...
- Get started
- Third party notices
A Site can have more than one Controller for high availability of components and services, as well as workload balancing for larger deployments. A Site is the name you give to a product deployment. It comprises the Controllers and the other core components and VDAs, Host connections (if used), plus the machine catalogs and Delivery Groups you create and manage. A Site does not necessarily correspond to geographical location, although it can.
The Controller communicates with the Site Configuration Database to obtain session and configuration information. By default, this Database is installed when you install the Controller and is configured when you create a Site. This Site Configuration Database stores configuration changes recorded by the Configuration Logging Service, plus trend and performance data that is used by the Monitoring Service and displayed by Citrix Director. Citrix recommends that you specify different locations for the Configuration Logging and Monitoring databases if you use these features and store more than seven days of data. You can configure different databases for each of these services after you have create a Site.
You can install the core components on the same server or on different servers. For example, to manage a smaller deployment remotely, you can install Studio on a different machine than the server where you installed the Controller. To accommodate future expansion, consider installing components on separate servers; for example, install the License Server and Director on different servers.
There are two general types of VDAs: one for Windows servers and another for Windows desktops. The VDA for Windows Desktop OS is used in full deployments and Remote PC Access deployments. The VDA for Windows Desktop OS also offers an HDX 3D Pro version that is optimized for applications and desktops that use a GPU for hardware acceleration.
When you install a VDA, Citrix Receiver is also installed by default. Citrix Receiver provides secure on-demand access to documents, applications, and desktops from any user device.
The Components in this release document illustrates a typical deployment.
You can install components using a wizard-based graphical interface or a command-line interface, which enables scripted installation. Both methods install prerequisites automatically.
After installing components and creating a Site, follow the guidance in Studio to create machine catalogs and Delivery Groups. Citrix also recommends you change the location of the Configuration Logging and the Monitoring Databases. See Change secondary database locations. If you chose during component installation to configure firewall port exceptions manually, do so now.