The exhibit shows a non-IBM tape library setup, where Fabric A, in addition to controlling tape
drives 1 through 3, also controls the tape library controller. In the event of Fabric A loss, all control
between host and library would be lost and all drives become inaccessible.

With an equivalent IBM library, in the event of Fabric A failure, which drives would be affected?

A.
All drives would be inaccessible, as the only path to the controller is lost

B.
All drives would be accessible as IBM provides control paths via the tape devices meaning
multiple control paths exist

C.
All drives would be accessible due to the redundant control path on Fabric B (all IBM libraries
provide dual-path controllers as standard)

D.
Drives 1 through 3 would be inaccessible, but drives 4-6 would continue to function due to the
redundant control path on Fabric B (all IBM libraries provide dual-path controllers as standard)

Explanation: