Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2006-07-18
2006-07-18
Chace, Christian P. (Department: 2189)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C711S162000, C711S165000, C707S793000, C707S793000, C707S793000, C707S793000, C714S006130
Reexamination Certificate
active
07080221
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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Bell, II John Philip
Blumenau Steven M.
Buckley Donagh
Cakeljic Zoran
Fox Conor
Chace Christian P.
EMC Corporation
Wolf Greenfield & Sacks P.C.
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