Handling sessions between servers?

Is it possible to handle sessions with PHP between separate web servers? We have 2 Apache servers and would like to share session data between them. If we keep the session data on an NFS mounted drive -- will this work? Would it be better to write custom session handlers to store session data in a database accessible from both servers? It seems like this should be possible, but I'm not quite sure how to go about doing it. Also, this is on 2 separate platforms. One is RedHat Linux 7.1 and the other server is on AIX 4.3.3. Thanks in advance for any replies, Mike ****************************************************************** This communication is for informational purposes only. It is not intended as an offer or solicitation for the purchase or sale of any financial instrument or as an official confirmation of any transaction, unless specifically agreed otherwise. All market prices, data and other information are not warranted as to completeness or accuracy and are subject to change without notice. Any comments or statements made herein do not necessarily reflect the views or opinions of Capital Institutional Services, Inc. Capital Institutional Services, Inc. accepts no liability for any errors or omissions arising as a result of transmission. Use of this communication by other than intended recipients is prohibited. ******************************************************************