RDS Server - TCP Availability service
The RDS Server TCP Availability service, formerly Terminal Server service, monitors the availability of the Microsoft Windows Terminal Services, which allows remote login to a server using the Microsoft Remote Desktop client.
During the monitoring process, the service uses the Windows probe to track the terminal server's key activities. The results are then displayed on the status dashboard for the service.
When adding your RDS server as a device, ensure that you select Server - Windows as the Class. The Operating System must be a server.
| Service Type | WMI |
| Instances on a Device | 1 |
| Supported Systems/Applications | Microsoft Windows Terminal Services |
| Device Class | Server - Windows |
| Monitored By | Windows probe, N-able N-central server |
| Scan Interval | 15 minutes |
| WMI Class | The default value for WMI Class is Win32_PerfRawData_TermService_TerminalServices which should be used for most Server - Windowss. For servers using Windows 2008 or Windows Vista SP1, however, the WMI Class should be set to Win32_PerfRawData_LocalSessionManager_TerminalServices. |
Properties queried and calculations performed
| Namespace | root\cimv2 |
| WMI Class | Win32_PerfRawData_TermService_TerminalServices |
| WMI Property 0 | ActiveSessions |
| WMI Property 1 | InactiveSessions |
| WMI Property 2 | TotalSessions |
Status details
| Threshold | Description |
|---|---|
| Active sessions | Counts the sessions that are currently connected and have users logged on. |
| Inactive sessions | Counts the sessions that are:
For more information, refer to the table below. |
| Total sessions | The sum of the active and inactive sessions. |
Examples of active and inactive session counts
| Example | Session Count |
|---|---|
| Terminal Server Shutting Down | Active Session Count = 0 Inactive Session Count = 0 Total Sessions = 0 |
| Terminal Server Freshly Started | Active Session Count = 0 Inactive Session Count = 1 Total Sessions = 1 |
| Session Connected But Not Logged On | Active Session Count = 0 Inactive Session Count = 2 Total Sessions = 2 |
| Session Connected AND Logged On | Active Session Count = 1 Inactive Session Count = 1 Total Sessions = 2 |
| Session Disconnected BUT Logged On | Active Session Count = 0 Inactive Session Count = 2 Total Sessions = 2 |