Patent ID: 9378767
Filing Date: 2016-06-28
CPC Classification: G06F,G07F,G11B

Claim Text:
1. A method for communication between a host and a plurality of tape drives of different types via a single physical control unit (CU), said method comprising: providing a plurality of model types L of tape drives, each said model type being of a different generation, and a number of tape drives Q issuing feature codes for a plurality N of logical control units (LCUs) for a customer for the single physical CU; entering the feature codes into the physical CU to enable configuration of N LCUs; configuring the physical CU to support N LCUs, each LCU supporting communication with a single model type and a maximum of M tape drives; based on the number of model types L and the number of tape drives for each model type Q assigning individual tape drives to the LCUs based on model type.