Supporting web portlets on multi-web server setup

We are in the process of setting up a system that will have 2 web servers plus a system for the portal and its backend DB. (ie, the 2 web servers will have a load balancer in front of them to spread the work.)
My question is: how do I support our web portlets that allow the users to customize them? These portlets use the File Customization Manager and so the customization settings are manintained in files on the web server.
Since the load balancer may send a user to either of the web servers, how do you suggest I best maintain the customization settings? Use a shared file system? Don't use a shared file sys, but sync up the customization dat files some other way? Re-write all of the web portlets to use the DB to maintain the customization data?
Thanks for any suggestions or help for this!
Brian Downs

The best way to handle this would be to use the DB Customization Manager and store the customizations in the database. You could also explore the NFS/shared file system route, but we have run into significant performance issues with NFS in the past.

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