AMBER light seen in front side of storage chassis

• FAS/AFF
• ONTAP 9

• Amber attention LED is turned ON on the controller. 
• No faults can be seen in the output of the 'system node environment sensors show' command from the BMC.
• Following warning is seen when we check 'system controller service-event show'.

cluster::> system controller service-event show

Warning: Unable to list entries on node clus02-01. The Service Processor on
                  node "clus02-01" is not reachable. Verify that the SP or BMC is
                  online, verify that api-service is enabled on the SP or BMC, verify
                  that the partner node is running, check if pings from SP or BMC to
                  partner node work, check if hw-assist keep-alives are normal, check
                  that network ports are configured correctly and are functional (up).
                  Then, try the command again.
                  Unable to list entries on node clus02-02. The Service Processor on
                  node "clus02-02" is not reachable. Verify that the SP or BMC is
                  online, verify that api-service is enabled on the SP or BMC, verify
                  that the partner node is running, check if pings from SP or BMC to
                  partner node work, check if hw-assist keep-alives are normal, check
                  that network ports are configured correctly and are functional (up).
                  Then, try the command again.

• API-services are disabled.

cluster::> system service-processor api-service show

 Service Processor API service configuration
           Enabled: false
              Port: 50000
      Limit Access: true
Server Certificate: -internal-
Client Certificate: -internal-
    CA Certificate: -internal-