The utility model discloses an industry disaster -tolerant backup all -in -one, including the central processing unit unit, the central processing unit unit through the electric conductor be connected with communication unit, duplicate the unit, storage unit and first disk array unit, the central processing unit unit still has local network element through wireless connectivity, local network element is connected with through the electric conductor and prevents the hot wall device, prevent that the hot wall device is connected with through the electric conductor respectively and hold calamity data host computer and disaster -tolerant backup host computer, appearance calamity data host computer and disaster -tolerant backup host computer all be connected with sharing storage device through the electric conductor. The utility model discloses to backup data storage and in first disk array unit and second disk array unit, save and realize in storage unit that the storage is spare, arbitrary physics magnetic disc damages, can not influence the use of other physics magnetic discs, and the safety of calamity data is held in the effective protection of ability, provides effectual data backup and storage, is convenient for hold the collection and the use of calamity data.