Patent ID: 7941597

Claim:
A controller for controlling access to media libraries, said controller comprising: a first interface connect to a first transport medium; a second interface to connect to a second transport medium; a computer processor; a computer memory coupled to the computer processor, the computer memory storing a set of computer instructions executable by the computer processor to: associate hosts connected to the first transport medium with virtual media libraries that map to media library components at physically separate media libraries connected to the second transport medium; receive commands from hosts referencing virtual media slots and virtual media drives of associated virtual media libraries; forward commands to the appropriate physically separate media libraries based on the mapping, wherein if the virtual media slot and virtual drive referenced in a command map to a corresponding physical media slot and corresponding physical drive at different of the physically separate media libraries, forwarding the command comprises forwarding a first portion of the command to a physical robot at a first of the physically separate media libraries that contains the corresponding physical slot and forwarding a second portion of the command to a selected physical drive at the first of the physically separate media libraries.