Invention Grant
- Patent Title: System and method for verification and enforcement of virtual interface failover within a cluster
- Patent Title (中): 集群内虚拟接口故障切换的验证和实施的系统和方法
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Application No.: US11741862Application Date: 2007-04-30
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Publication No.: US07958385B1Publication Date: 2011-06-07
- Inventor: Robert Frangioso , Ronald W. Kownacki
- Applicant: Robert Frangioso , Ronald W. Kownacki
- Applicant Address: US CA Sunnyvale
- Assignee: NetApp, Inc.
- Current Assignee: NetApp, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Cesari and McKenna, LLP
- Main IPC: G06F11/00
- IPC: G06F11/00

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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