Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2006-06-08
2009-02-03
Iqbal, Nadeem (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
Reexamination Certificate
active
07487390
ABSTRACT:
Provided is a method causing a node of a local site or of a remote site to take over a file server when a failure occurs to a node of the local site. The method includes the steps of: setting a priority of the failover to the respective nodes of the local site; setting a failover destination of the respective nodes of the local site to a node of the remote site or the local site based on correspondences between the priority and an extent of the failover destination set in advance; backing up data to respective nodes of the determined failover destination; causing the failover destinations and nodes to mutually detect a failure; and causing a node of the failover destination to take over a task if the node of the failover destination detects a failure.
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patent: 2003/0172093 (2003-09-01), Nagoya
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patent: 2005-301560 (2005-10-01), None
Hitachi , Ltd.
Iqbal Nadeem
Mattingly, Stanger Malur & Brundidge PC
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