Invention Grant
- Patent Title: Techniques for maintaining device coordination in a storage cluster system
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Application No.: US14928282Application Date: 2015-10-30
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Publication No.: US09804940B2Publication Date: 2017-10-31
- Inventor: Brian Panasko , Tom Snyder , Chad Moore
- Applicant: NETAPP, INC.
- Applicant Address: US CA Sunnyvale
- Assignee: NetApp, Inc.
- Current Assignee: NetApp, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: LeClairRyan, a Professional Corporation
- Main IPC: G06F11/20
- IPC: G06F11/20 ; G06F3/06

Abstract:
Various embodiments are generally directed to techniques for maintaining and using a quorum of nodes within a cluster of a storage cluster system to perform coordinated operations. An apparatus includes a node of multiple nodes of a storage cluster system, each node to oversee a copy of client data and a first node to serve as a tie breaker node in determinations of whether there is a quorum; a quorum coordination component to determine a current status of the quorum, and coordinate performance of a coordinated operation among the multiple nodes to alter the copies of the client data based on the current status of the quorum; and a tie breaker reassignment component to analyze the indications to determine whether the first node has failed and reassign the tie breaker node from the first node to a second node in response to a determination that the first node has failed.
Public/Granted literature
- US20170123945A1 TECHNIQUES FOR MAINTAINING DEVICE COORDINATION IN A STORAGE CLUSTER SYSTEM Public/Granted day:2017-05-04
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