A system for performing storage operations using hierarchically configured storage operation cells. The system includes a first storage manager component and a first storage operation cell. The first storage operation cell has a second storage manager component directed to performing storage operations...http://www.google.de/patents/US20090077317?utm_source=gb-gplus-sharePatent US20090077317 - HIERARCHICAL SYSTEMS AND METHODS FOR PERFORMING STORAGE OPERATIONS IN A COMPUTER NETWORK
