NetBackup provides a special target mode driver for the QLogic Fibre Channel host bus adapter (HBA) ports that connect to the NetBackup SAN clients. The target mode driver replaces the default, initiator mode driver. Target mode applies only to QLogic HBAs; the target mode configuration process affects only QLogic HBA ports.

The target mode driver (a NetBackup FT device) appears as two ARCHIVE Python tape devices during SCSI inquiry. However, they are not tape devices and do not appear as tape devices in NetBackup device discovery.

The target mode driver appears as two tape devices because operating systems allow only one data stream per port. Two pseudo tape devices for each port increases throughput.