HP StoreEver TapeAssure Software - Manual (Page 100)

Check that the LTT Service is running
Use the Windows Computer Management application to verify that the LTT Service is running.
The LTT Service should be configured to start automatically.
NOTE: If the service is not shown at all re-install the LTT Service and reboot the server.
Open Windows Task Manager to check that the process hp_taserv.exe is running. If it is not
running, start or restart the service..
100 Troubleshooting