Seeding Netbackup Puredisk locally to USB?

Hello,

I am running a Netbackup Puredisk 6.6.0.3 server and have to begin backups of a large amount of data over a very small link.

Is there any funcionally within puredisk to allow me backup to USB on the server i am backing up and then Plug the USB hard drive into my Puredisk server to add to my disk pool to save potentally weeks of performing a Full Backup over a network link?

Many thanks in advance..

Matt.