Server roles used by ConfigMgr can be divided into three groups--default, mandatory, and optional roles. Default mandatory roles are ones that are deployed by the installer and cannot be uninstalled or added manually. Optional ones are the ones that the administrator installs on a chosen server system or, sometimes, client, to implement a certain functionality. Good examples of such optional features are a Software Update point and an Application Catalog.
While installing ConfigMgr server or any of its particular roles, the default roles--mandatory for the environment--are installed. This is the list of default ConfigMgr server roles:
- Site server: This provides fundamental functionalities for the ConfigMgr server.
- Site system: This is the server that provides specific ConfigMgr functionalities. The role is automatically installed while installing some of the optional roles or when installing the ConfigMgr role.
- Component system: This is the server that...