Systems, methods, apparatus and software can provide the capability of grouping related files together so as to optimize placement of the files on the physical media. Consequently, certain system operations (e.g., backup, defragmentation and the like) can be performed on the group of files, as opposed...http://www.google.se/patents/US7533137?utm_source=gb-gplus-sharePatent US7533137 - System and method for grouping files