Replication of a consistency group of data storage objects from servers in a data network
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United States of America Patent
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Jul 27, 2010
Grant Date -
Jun 14, 2007
app pub date -
Nov 29, 2005
filing date -
Nov 29, 2005
priority date (Note) -
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Abstract
Consistency errors may arise during replication of diverse data storage objects from servers in a data network. For preventing consistency errors, a server is programmed for responding to a request for a report of whether or not the server can replicate the dataset without causing a consistency error. Such a report is useful for replicating a consistency group of objects from more than one server. Preparation for replication can be begun at each of the servers, and if any of the servers fail to report that replication can be done without causing a consistency error, the preparation can be aborted so that write access by applications will not be disrupted while the potential problem is diagnosed and eliminated.
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