Method and apparatus for migrating data in a clustered computer system environment
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United States of America Patent
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Sep 28, 2010
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N/A
app pub date -
Apr 23, 2003
filing date -
Apr 23, 2003
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Abstract
Methods and apparatus for performing a data migration in a clustered computer system. In one aspect, the availability of the data being migrated is maintained during the migration. In another aspect, a data set is migrated by a transfer utility in one of the hosts in the cluster, and in response to a failure of the host, the migration is resumed without restarting from the beginning point of the data set. In a further embodiment, the hosts in the cluster have agents associated therewith to manage the data migration, and prior to taking at least one action associated with the data migration, the agents coordinate to ensure that the hosts in the cluster are prepared to have the at least one action taken.
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