FAS and V-Series Storage Systems Discussions
A light bulb with an icon is on the controller!Errors on the controller did not detect, executed the command sysconfig -A
How can I diagnose?
See The Solution
Actually, that's an "exclamation mark" symbol, which represents the "Fault" LED on the controller.
Use this troubleshooting workflow article in the Knowledge Base:
Troubleshooting Workflow: Procedure to troubleshoot fault LEDs on various platforms