We have a NetApp Filer, and want to access it via Samba/CIFS, and have it use the username/password/uid available in our OpenLDAP server. We already do this successfully with Samba 3 against OpenLDAP, so we have all the appropriate posix attributes as well as NT/LanManager password attributes.
The goal is that a user can mount their directory in Windows with the same username/password as their Linux login, and files created there will have the correct uid so it just works when they go back to Linux.
Again, we have all this working with Samba/OpenLDAP/Linux, so the question is not about that configuration. It's about configuring a NetApp against such a system.