Library Control Card failover

The TS4500 tape library allows for automatic Library Control Card (LCC) failover.

The main control center of the TS4500 tape library is the LCC. In addition to the base L-frame, each D-frame with a Frame Control Assembly has an LCC. For libraries with multiple LCCs, the library firmware performs automatic LCC failover.

When the TS4500 tape library powers up, one LCC is chosen to be the primary control card. Any other LCCs that are present in the library are used as cache LCCs. Should the primary LCC becomes degraded, the library firmware will automatically choose one of the cache LCCs to assume the primary role without interrupting library operations.