| 摘要 |
PROBLEM TO BE SOLVED: To detect abnormality of back-up data transmitted from a HOST system.SOLUTION: A synchronization method for back-up data in a back-up system 3 that performs back-up of a HOST system 1 comprises: a master data synchronization process for storing back-up data received from the HOST system 1 through first data communication means 32, which is high-capacity, in a database 5 of the backup system 3; and a transaction synchronization process for storing back-up data received through second data communication means 31, which is on a real-time basis and maintains a sequence, in the database 5. |
