Mirroring multiple writeable storage arrays
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United States of America Patent
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Apr 5, 2016
Grant Date -
Feb 19, 2015
app pub date -
Sep 26, 2014
filing date -
Jan 28, 2010
priority date (Note) -
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Abstract
Systems, methods, and computer program products for mirroring dual writeable storage arrays are provided. Various embodiments provide configurations including two or more mirrored storage arrays that are each capable of being written to by different hosts. When commands to write data to corresponding mirrored data blocks within the respective storage arrays are received from different hosts at substantially the same time, write priority for writing data to the mirrored data blocks is given to one of the storage arrays based on a predetermined criterion or multiple predetermined criteria.
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