when you say you are using FC ..FC drives or FC connectivity ? If you are talking about ip connectivity then you will be using NFS to present file system from Celerra to your ESX server.  Take a look at this paper

http://www.emc.com/collateral/software/technical-documentation/h5536-vmware-esx-srvr-using-emc-celerra-stor-sys-wp.pdf

Thank you for this. I am using FC for connectivity. I will look over this document. Thanks again.

Thanks dynamox, forgive me if this is just a dumb question. I currently have 3 cifs shares on the system. I need two of them. Can I delete the third and just present that space to be used to export nfs for esx?

Yes they do. I apologize, when I said share, I meant to refer to them as the file system behind it. The unneeded share is on an unneeded file system also.

do you know if each CIFS share represents a unique file system ?

sure, you can delete that share, delete the file system. Recreate the file system and export it via NFS to your ESX server(s).  When you create file system, make sure it gets mounted on the physical datamover (server_2) and not virtual data mover.