The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2011
Filed:
Apr. 30, 2007
Robert Frangioso, Sunnyvale, CA (US);
Ronald W. Kownacki, Sunnyvale, CA (US);
Robert Frangioso, Sunnyvale, CA (US);
Ronald W. Kownacki, Sunnyvale, CA (US);
NetApp, Inc., Sunnyvale, CA (US);
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.