Information system, data transfer method and data protection method
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United States of America Patent
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Apr 12, 2011
Grant Date -
Aug 12, 2010
app pub date -
Apr 26, 2010
filing date -
Oct 30, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
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 is improved. 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, the first and third storage apparatuses perform remote copy of copying data stored in a first volume to the third volume, the first and second storage apparatuses perform remote copy of copying data stored in the first volume to a second volume, and the third and fourth storage apparatuses perform remote copy of copying data stored in the third volume to the fourth volume.
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