| 摘要 |
A primary storage system receives, from a host computer, indivisible data which is a group of data indivisible for maintaining consistency and generated in the host computer by executing an application, stores the received indivisible data, transmits a plurality of journals each including a plurality of data pieces generated by dividing the indivisible data into predetermined sizes, to a secondary storage system, and transmits, to a management computer, journal information representing that each of the plurality of journals has been transmitted. The management computer receives the journal information from the primary storage system, determines, based on the journal information, whether all the journals corresponding to the indivisible data have been transmitted to the secondary storage system, and, if a determination result is true, stores a time point when all the journals corresponding to the indivisible data have been transmitted as a data recoverable time point indicating a time point when recoverable data of the indivisible data is stored. |
