| 摘要 |
A remote copy system in which duplex by means of remote copy of a table can be managed from a database management system is provided, wherein a host computer defines a pair formation between a first storage device serving as a copying source and a second storage device serving as a copying destination, generates a conversion table for performing address conversion from a table and a log of a database to a storage data area corresponding to the table and the log in the first storage device and then instructs the first storage device to perform the defined pair formation using the conversion table. The first storage device generates in a pair status management table the pair relation between the copying source and the copying destination and then performs remote copy of data of copying target into the second storage device serving as a copying destination.
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