Invention Grant
- Patent Title: SVC cluster configuration node failover
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Application No.: US13925102Application Date: 2013-06-24
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Publication No.: US08868966B2Publication Date: 2014-10-21
- Inventor: Hao He , Ling Sun , Jun Wei Zhang
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Griffiths & Seaton PLLC
- Priority: CN200910174128 20090930
- Main IPC: G06F11/00
- IPC: G06F11/00 ; H04L29/08 ; H04L29/14 ; H04L12/24 ; G06F11/20

Abstract:
Methods, systems, and computer programs are provided for failover responses to configuration node failures in SVC clusters. An SVC cluster manages a plurality of storage devices and includes a plurality of SVCs interconnected via a network, each SVC acting as a separate node. A storage device event log is saved, with an original configuration node. An entry is made in the storage device event log each time the original configuration node receives storage device events and setting the entry to a negative value indicating a storage device event has not been handled. The entry is set to a positive value indicating the storage device event has been handled after the original configuration node notifies respective subscribed clients about those of the storage device events the original configuration node receives. A new configuration node is activated in response to configuration node failures.
Public/Granted literature
- US20130290774A1 SVC CLUSTER CONFIGURATION NODE FAILOVER Public/Granted day:2013-10-31
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