Can session.save_path data be saved to a database instead of a file system?

I have 2 servers fail-over/load-balanced behind an F5 bigIP. I want session data to be maintained in the event one server takes a dive. In this scenario, if a user is in the middle of doing something while logged in, they will not have to lose all work and log back into the server to continue working. Can that be done without rewriting an application? I saw a link here: http://www.phpfreaks.com/quickcode/DB_eSession_class_securely_stores_PHP_sessions_in_a_MySQL_DB/286.php but this seems to be something that would have to be written into the application and I didn't write it and do not want to take on the responsibility to do so from here. Any thoughts would be much appreciated. Thank You, Caleb