we are running now an FAS3220 in ClusterMode - with 2 shelfs.
Now - we see this orange warning in front of the netapp and at every head.
But we did not find any "errors" in logs etc.
Any ideas where we can find information why this orange light is on ?
We are new in clustered ontap
Under rare circumstances, the FRU Fault LED may not be cleared and either flash or remain solid.
I think this could help you resolve the issue.
Jus to add to what VOJTECH_TAUCHMAN mentioned, there is a BUG (ID 472202) associated with this symptom.