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MAUSO Did Not Trigger Due to Missing HTTPS Service on Mediator Firewall

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Category:
metrocluster
Specialty:
MetroCluster
Last Updated:

Applies to

  • MetroCluster IP
  • ONTAP Mediator
  • ONTAP 9

Issue

Automatic Unplanned Switchover (MAUSO) did not occur during a site power loss. The surviving site did not activate mirrored aggregates, and the mediator did not trigger the expected failover.
Mediator host:
iscsi-scst: ***ERROR***: Connection ... unexpectedly closed!
iscsi-scst: ***ERROR***: Timeout 30 sec sending data/waiting for reply to/from initiator ... closing connection ...
Firewall configuration on mediator host (output of firewall-cmd --list-all):
services: cockpit dhcpv6-client ssh
ports: 31784/tcp 3260/tcp
Event logs:
cf_worker:cf.mccip.med.auso.stDisabled:error: Automatic switchover disabled: Mediator mailbox disk not healthy.
DR_heartbeat_thread:mcc.auso.trigFailed:EMERGENCY: A trigger for Automatic Unplanned Switchover failed ... Reason: Automatic Unplanned Switchover disabled by local node

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