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. 13, 2017
Filed:
Oct. 30, 2015
Netapp, Inc., Sunnyvale, CA (US);
Brian Panasko, Pittsburgh, PA (US);
Tom Snyder, Pittsburgh, PA (US);
Chad Moore, Pittsburgh, PA (US);
NetApp, Inc., Sunnyvale, CA (US);
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 network interface of a node of multiple nodes of a storage cluster system to receive a command from another device to cause the node to become unavailable to remain within a quorum of the nodes; an update coordination component to enable one node at a time to have authority to update node status data, the node status data comprising indications of states of the multiple nodes; and a command evaluation component to cooperate with the update coordination component to obtain the authority, analyze the indications to determine a current status of the quorum when the node has the authority, and determine whether to accept the command based on whether unavailability of the node causes loss of the quorum.