The invention is a method and system for copying backup data to a virtual tape library (VTL), where data written to the VTL can optionally be stored on removable disk media for offsite storage. The invention minimizes dependency on tape media without taxing the resources of any of the servers and without...http://www.google.com/patents/US7567993?utm_source=gb-gplus-sharePatent US7567993 - Method and system for creating and using removable disk based copies of backup data
