Protection of former primary volumes in a synchronous replication relationship
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United States of America Patent
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Jun 9, 2015
Grant Date -
Sep 11, 2014
app pub date -
Mar 11, 2013
filing date -
Mar 11, 2013
priority date (Note) -
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Abstract
An aspect includes protecting a former primary volume in a synchronous replication relationship. A swap between a primary volume at a first site and a secondary volume at a second site is initiated such that the secondary volume becomes a new primary volume and the primary volume becomes the former primary volume. A fenced state is set as active for the former primary volume. The former primary volume is configured as a fenced volume based on the fenced state being active. Read and write access to the fenced volume is blocked while the fenced state is active.
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