Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2011-06-07
2011-06-07
Wilson, Yolanda L (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C709S223000, C709S224000
Reexamination Certificate
active
07958385
ABSTRACT:
A cluster-wide published configuration system and method is provided for assigning host nodes to virtual interfaces (VIFs) in a cluster of data storage systems. A coordinating VIF manager publishes a set of failover rules in a VIF configuration table using a replication database. In the event of a VIF failure, the coordinating VIF manager publishes a reassignment of host nodes using a single read-write transaction of a replication database service. Secondary VIF managers in the cluster must perform VIF hosting in accordance to the reassignment or publish a new configuration table. Each VIF manager instance in a quorum reads the VIF configuration table upon each VIF failover to perform error checking event regardless of whether the VIF manager is affected by the VIF failover event.
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Frangioso Robert
Kownacki Ronald W.
Cesari and McKenna LLP
NetApp, Inc.
Wilson Yolanda L
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