Today, by accident, I stumbled upon a new feature of VCB: LAN Backup with VCB. Even if your VCB proxy has no SAN...
or iSCSI visibility, you can still use VCB. There is a new “LAN Copier” which allows you backup. Of course, this kind of negates the whole point of VCB to some degree, offloading the backup from the network to the SAN/iSCSI system. The new switch -m “nbd” allows you to enable this mode. Interestingly, if you get an error in this config the error tells you to use ndb, not nbd. The command-line help does say clearly to use -m “nbd”
Read more about new features in VCB in the What’s New guide from VMware