Abstract: The present invention provides a centralized management mode backup disaster recovery system, which comprises: a control console (104) for performing centralized control on a data container (105), a backup process module (103), storage medium (101), and a standby machine (102) through respective control operations; a production server (108) responsible for controlling and managing data circulation between the production server and the storage medium in unit of data blocks; a backup process module (103) for backing up data to storage space allocated for the production server (180) by the storage medium (101) through an mirror technique and a synchronous or asynchronous technique or any other backup methods; the storage medium (101) for storing data and allocating a logic unit (200) to the production server (108) for data storage; the standby machine (102) for storing system data of the production server (108) and completing automatic running and setting of the standby machine (102) through the control console

Abstract: The present invention provides a remote online backup method based on stager fragmented transmission, comprising: defining a journal storage system as a journal relay system, i.e., a Journal Stager; dividing the Journal Stager into a Local Journal Stager and a Remote Journal Stager to optimize backup transmission performance of the whole online backup system; setting between the Local Journal Stager and the Remote Journal Stager a transmitter, by which a journal is transmitted from one stager to another stager; applying the journal to a backup storage device through a Journal Replayer at a backup destination site.

Abstract: The present invention provides a remote online backup method based on stager fragmented transmission, comprising: defining a journal storage system as a journal relay system, i.e., a Journal Stager; dividing the Journal Stager into a Local Journal Stager and a Remote Journal Stager to optimize backup transmission performance of the whole online backup system; setting between the Local Journal Stager and the Remote Journal Stager a transmitter, by which a journal is transmitted from one stager to another stager; applying the journal to a backup storage device through a Journal Replayer at a backup destination site.