Invention Grant
- Patent Title: Servicing of network software components of nodes of a cluster storage system
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Application No.: US16448063Application Date: 2019-06-21
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Publication No.: US11546337B2Publication Date: 2023-01-03
- Inventor: Nam Le , Paul Yuedong Mu , John Russell Boyles , John Eric Hoffman
- Applicant: NetApp Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: NetApp Inc.
- Current Assignee: NetApp Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Cooper Legal Group, LLC
- Main IPC: G06F15/16
- IPC: G06F15/16 ; H04L9/40 ; H04L67/1097 ; H04L67/10 ; G06F16/10 ; G06F3/06 ; G06F11/20 ; G06F12/14 ; G06F21/62

Abstract:
Described herein are method and apparatus for servicing software components of nodes of a cluster storage system. During data-access sessions with clients, client IDs and file handles for accessing files are produced and stored to clients and stored (as session data) to each node. A serviced node is taken offline, whereby network connections to clients are disconnected. Each disconnected client is configured to retain its client ID and file handles and attempt reconnections. Session data of the serviced node is made available to a partner node (by transferring session data to the partner node). After clients have reconnected to the partner node, the clients may use the retained client IDs and file handles to continue a data-access session with the partner node since the partner node has access to the session data of the serviced node and thus will recognize and accept the retained client ID and file handles.
Public/Granted literature
- US20190327241A1 SERVICING OF NETWORK SOFTWARE COMPONENTS OF NODES OF A CLUSTER STORAGE SYSTEM Public/Granted day:2019-10-24
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