Patch Manager consists of three server roles:
- Automation Server
- Application Server
- Management Server
By default, the server that hosts Patch Manager is the Primary Application Server. The remaining servers provide additional functionality for your deployment. All Patch Manager servers include the Automation Server role.
Based on your deployment needs, you can install a secondary application server (SAS). This server can independently download third-party packages from the SolarWinds third-party catalog and control separate Windows Server Update Services (WSUS) servers that are not configured to work with the PAS.