| 摘要 |
Operation information to a DBMS issued from an application ( 3102 ) operating on a primary system ( 3100 ) to middleware ( 3103 ) is acquired by acquiring means ( 3105 ) and transmitted to a backup system ( 3200 ) through a communication channel ( 3300 ) by transmitting means ( 3108 ). In the backup system ( 3200 ), the received operation information is modified by modifying means ( 3206 ) so that the operation information is suitable for the DBMS ( 3222 ) of the backup system, reproduced by reproducing means ( 3205 ), and issued to the DBMS ( 3222 ) of the backup system. With this, similarly to the data in a storage ( 3123 ) of the primary system ( 3100 ), the data in a storage ( 3223 ) of the backup system ( 3200 ) is processed, thereby realizing data multiplexing.
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