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Unexpected Node Reboot and HA Interconnect Loss on ASA-A90

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asa-r2
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hw
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Applies to

  • NetApp ASA-A90 systems
  • ONTAP 9.17.1P3

Issue

A node in an ASA-A90 cluster (example: Node b) unexpectedly rebooted, resulting in an automatic takeover by its HA partner (Node-a). This triggered the following alert:

CLTFLT: HAGroupNotification from Node-a (CONTROLLER TAKEOVER COMPLETE AUTOMATIC - Communication Error)

Additional log excerpts:

[Node-a:vifmgr.clus.linkdown:EMERGENCY]: The cluster port e1a on Node-a has gone down unexpectedly.
[Node-a:vifmgr.clus.linkdown:EMERGENCY]: The cluster port e7a on Node-a has gone down unexpectedly.
[Node-a:callhome.clam.node.ooq:EMERGENCY]: Callhome for NODE(S) OUT OF CLUSTER QUORUM.
[Node-a:monitor.globalStatus.critical:EMERGENCY]: This node has taken over Node-b.

The affected node was unavailable for approximately 125 seconds before returning to service through a fresh boot sequence. No controller panic, watchdog timeout, power supply failure, thermal shutdown, or explicit hardware fault was logged.

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