Can the TP1 power any hard disk?
No, the TP1 may not be able to provide enough power for some hard disks. In particular, Tableau has found that some older, 5.25″ full height SCSI hard disks draw too much power during spin-up and cannot be powered by the TP1. In these cases, Tableau recommends you power the hard disk from its existing power supply and use the TP1 to power the Tableau bridge separately.