Thunderbolt host can support up to 128 volumes and USB 3.0 host only one. Only the SCSI Ch/Id/Lun=0/0/0 volume bonds both Thunderbolt and USB 3.0 connection. You can swap other volumes SCSI Channel/SCSI ID/SCSI Lun with SCSI Ch/Id/
Lun=0/0/0 if you need to access it from USB 3.0 port.
Tags: ARC-5026, partition, Q80011312, Thunderbolt, USB 3.0