Applies to ONTAP 9 MetroCluster IP Controller upgrade using switchover/switchback Issue After a controller replacement a node doesn't boot properly and reports an error: /var boot directory is missing...Applies to ONTAP 9 MetroCluster IP Controller upgrade using switchover/switchback Issue After a controller replacement a node doesn't boot properly and reports an error: /var boot directory is missing Host name of the node is reported just as localhost, even after using (6) Update flash from backup config