I don't know how deep you dug on this but OMG . . .  Hawt!!!

ProtecTIER now supports Common Internet File System (CIFS) for backup to disk, in addition to its Virtual Tape Library (VTL) and Symantec OpenStorage (OST) interfaces. CIFS allows customers to deploy backup to disk solutions through IP networks, eliminating the need for expensive Fibre Channel infrastructure and removing the complexity associated with handling and managing physical and virtual tapes. CIFS, usually used in Windows environments, facilitates the integration with Tivoli Storage Manager – and is especially relevant to VMware environments.