Method and apparatus for copying, transferring, backing up and restoring data are disclosed. The data can be copied, backed up or restored in segments sizes larger than the data blocks which comprise a logical object. In some embodiments, the segment can correspond to a track of a primary storage device...http://www.google.de/patents/US6487561?utm_source=gb-gplus-sharePatent US6487561 - Apparatus and methods for copying, backing up, and restoring data using a backup segment size larger than the storage block size
