topic About the fault LED on one of the HDD and controller in ONTAP Discussions

About the fault LED on one of the HDD and controller

Terry_Lui — Wed, 04 Jun 2025 10:08:01 GMT

Yesterday, FAS2750 one of the HDD fault LDE was on. I was check all the disk status was nothing to find, status was normal, no broken disk, environment was healthy. Today i check again, LED light was off. Seems everything back to normal. May I know what reason cause by fail LED light turn on and no any warning in NetApp console. thanks.

Re: About the fault LED on one of the HDD and controller

Ontapforrum — Thu, 02 Dec 2021 15:12:29 GMT

hmm...interesting.

Any EMS events on the Cluster ? Also, any hardware events from the SP console? If it's just one-off event, you can ignore but if there is a pattern then it needs to be accessed.

Have a look at this KB, it includes your Platform FAS2750
https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Systems/FAS_Systems/Fault_LED_is_lit_for_no_apparent_reason_on_a_FAS22xx_or_FAS25xx_HA_storage_system_with_internal-only_storage
https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Systems/FAS_Systems/Fault_LED_is_lighted_without_hardware_failure
https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Systems/FAS_Systems/AFF_and_FAS_series_Disk_amber_LED_ON_with_no_fault_observed
https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Systems/FAS_Systems/System_fault_LED_light_on_and_%22Overcurrent_Protection_Fault%22

Re: About the fault LED on one of the HDD and controller

pedro_rocha — Thu, 02 Dec 2021 15:13:07 GMT

Hi... as you notice, it was a false positive event. The drive never failed per ONTAP understanding.

The best to do it to open a case with NetApp support. It is possible that this drive LED is not working as intended and maybe they could replace the drive in order to eliminate those false alerts.

If you do not have a support contract, I would suggest to you to put this drive as a spare, unassign it and physically remove it from the shelf. Then re-insert it, assign it and observe if the event occurs again.

Re: About the fault LED on one of the HDD and controller

Terry_Lui — Thu, 02 Dec 2021 15:28:43 GMT

on event log was did show about the alert, no alert show on ontap web consoles also