An object-based storage may employ a transactional interface and a copy on write protocol. The inode for the file (which is identified by the I-number and indicates one or more blocks storing the file data) may be copied to a working copy of the inode, and the working copy may be updated to indicate...http://www.google.com.au/patents/US20020078244?utm_source=gb-gplus-sharePatent US20020078244 - Object-based storage device with improved reliability and fast crash recovery
