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Controller failover of node is not possible, unsynchronized log
https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/Controller_failover_of_node_is_not_possible_unsynchronized_log
Applies to ONTAP 9 FAS/AFF Issue EMS Emergency message: [nodeB:monitor.globalStatus.critical:EMERGENCY]: Controller failover of nodeA is not possible:unsynchronized log.

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