| 摘要 |
A host computer HA1 or the like is provided with a target program 3 that receives the provision of logical volumes 212 , a volume interface program 12 A that provides an interface for the e logical volumes 212 to the target program 3 , and a volume filter program 12 B that selects one logical volume from the copying source volume 212 A and copying destination volume 212 B, and provides the selected logical volume to the target program 3 via the volume interface program 12 A.
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