A system, apparatus and method for maintaining information related to a write operation is described. In one embodiment of the invention, a write journal is provided that contains a list of entries that store information related to active write operations so that a particular write may be restarted in...http://www.google.com.tw/patents/US7533298?utm_source=gb-gplus-share專利 US7533298 - Write journaling using battery backed cache
