Only one PolicyServer can perform the database upgrade at a time.
- 
                Stop the services "TMEEservice" and "PolicyServerWindowsService" on
                    all PolicyServer instances except the one to upgrade.
                - Go to Start > Administrative Tools > Services.
- Right-click PolicyServer Windows Service and then select Stop.
 
- Perform the upgrade on the active server.
- After the upgrade completes and the database replicates, run the upgrade on the remaining PolicyServer instances.
Parent topic: Upgrading PolicyServer
 
		