A protected method of fast writing of information for at least one mass memory apparatus (DMM.sub.1) belonging to an information processing system including at least one central host (H.sub.1, H.sub.2), two control units (UC.sub.1, UC.sub.2) with independent electrical power supplies (ALIM.sub.1, ALIM.sub.2,...http://www.google.de/patents/US5283879?utm_source=gb-gplus-sharePatent US5283879 - Protected method for fast writing of data for mass memory apparatus
