Drive image providers of a virtualization system for an automated data storage library provide an image of a fixed plurality of virtual data storage drives with fixed identifications to a host application. A drive resource provider, at any one time, assigns any number "m" of a pool of "n" drives to the...http://www.google.de/patents/US6519678?utm_source=gb-gplus-sharePatent US6519678 - Virtualization of data storage drives of an automated data storage library
