Method, system and program for forming a consistency group
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United States of America Patent
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Jun 8, 2010
Issued Date -
N/A
app pub date -
Sep 6, 2006
filing date -
Sep 29, 2003
priority date (Note) -
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Abstract
Provided are a method, system, and program for forming a consistency group of data. Information is provided on a consistency group relationship indicating a plurality of slave controllers and, for each indicated slave controller, a slave storage unit managed by the slave controller. A command is transmitted to each slave controller in the consistency group relationship to cause each slave controller to transmit data in the slave storage unit to a remote storage in a manner that forms the consistency group. A determination is made as to whether all the slave controllers successfully transmitted the data in the slave storage units that is part of the consistency group to the remote storage.
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