Remote copy system and remote copy control method in which a copy pair is changed from a first consistency group to a second consistency group (STG)
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United States of America Patent
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Apr 30, 2013
Grant Date -
Jul 7, 2011
app pub date -
Oct 23, 2009
filing date -
Oct 23, 2009
priority date (Note) -
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Abstract
To provide a remote copy system and the control method for the same capable of performing the setting of volume pairs in the consistency group and changing the setting by the simple operation without depending on the pair definition processing. A copy pair configured of a primary volume and a secondary volume is suspended, and the suspended primary volume and the secondary volume are set to another consistency group different from the original consistency group, and then the primary volume and the secondary volume are resynchronized.
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