Virtual Storage Console for VMware vSphere automatically supports vFiler and Storage Virtual Machine (SVM, formerly known as Vserver) tunneling for the storage systems. You do not need to manually add these vFiler units and SVMs.
When you enter information for a cluster administrative LIF or vfiler0, VSC discovers all the subordinate vFiler units and SVMs.
If you are using VSC's backup and restore features, there are certain environments where these features can only access the physical storage system, not the vFiler unit, for communication on a storage network. You need to have vFiler tunneling enabled in order to use the backup and restore features to create Snapshot copies.