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LUN connectivity lost during upgrade of ONTAP to 9.9.1

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Applies to

  • ONTAP 9.9.1
  • 2-node MetroCluster

Issue

  • After performing switchover/switchback during ONTAP upgrade LUN connectivity is lost.
  • On the sync-destination vserver, missing igroups and lun mappings are identified by running ONTAP CLI commands igroup show or lun show.
  • LUN connectivity is restored after the final switchback.

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