Path Failover Feature Activation Key for Dell Tape Libraries.
If you are attempting to use an iSCSI Bridge, then you will never need the Path Failover key.
The Path Failover key enables a windows system to multipath over SAS and not iSCSI.
Tape drives do not support multipathing over iSCSI at all.
A screenshot of the Failover Feature Activation Key field is attached to this KBA.
The Path Failover Feature Activation Key should be supplied with your tape library (if you have ordered it).
Please check the following link for phone number and email contact details to request the Path Failover Feature activation key: