Patent ID: 8666537

Claim:
A method for a robotic storage library possessing a single robot, said method comprising: a) receiving a first move instruction from a host computer directing said robot to move a first storage element from a shelf to a first drive, said robot is identified by said host computer; b) in reference to said first move instruction, responding to said host that said first drive is in possession of said first storage element in a minimal acceptable engaged relationship in anticipation of a second move instruction regardless of whether, in actuality, said first drive possesses said first storage element; c) receiving a second move instruction from said host computer said robot to move a second storage element from said shelf to a second drive; d) in reference to said second move instruction, responding to said host that said second drive is in possession of said second storage element in a minimal acceptable engaged relationship regardless of whether, in actuality, said second drive possesses said second storage element; e) queuing said first and said second move instructions; f) reorganizing said first and said second move instructions in a preferred order; and g) carrying out said preferred order via said robot contained within said robotic storage library.