Cluster join fails - nodes are on a different version of ONTAP
Applies to
ONTAP 9
Issue
When attempting to add new nodes to an existing cluster, the following error is received:
System checks ...........
Error: Cluster join operation cannot be performed at this time: Cannot join node to the cluster because it is not running the same software version as the nodes in the cluster. To attempt the join anyway, use the "-allow-mixed-version-join" parameter.