| 摘要 |
PROBLEM TO BE SOLVED: To improve availability of an information system including a storage system that performs remote copy between two or more storage apparatuses and a host computer using such storage system. SOLUTION: A third storage apparatus including a third volume is coupled to a first storage apparatus, a fourth storage apparatus including a fourth volume is coupled to a second storage apparatus coupled to the first storage apparatus, the first and third storage apparatuses perform remote copy of data stored in a first volume to the third volume, the first and second storage apparatuses perform remote copy of data stored in the first volume to a second volume, and the third and fourth storage apparatuses perform remote copy of data stored in the third volume to the fourth volume. COPYRIGHT: (C)2008,JPO&INPIT
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