Way back some of our company employees had configured User Profile Sync Service on both App and WEF servers. Now we are in a situation where we have to stop User Profile sync service stopped on the Web Front Server. But i am unware of what is difference it makes 'User Profile Sync service running on App server only and running on both App and Web servers' What will be the difference on actual sync functionality. What will be difference performance, maintenance. Any other difference.
Thanks