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PSU reports DC FAIL, AC FAIL, OFF

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Category:
disk-shelves
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hw
Last Updated:

Applies to

  • AFF and FAS systems
  • ONTAP 9
  • Power supply unit (PSU)

Issue

  • EMS reports Critical fault reported on disk storage shelf attached to channel xx. Check fans, power supplies, disks, and temperature sensors.
  • storage show fault shows PSU is CRITICAL.

Power Supplies:
Element Status         Status Bytes  Status Descriptions
  1: CRITICAL          02,00,00,F1   DC FAIL, OFF, RQSTED ON, FAIL
  2: OK                01,00,00,20   RQSTED ON

OR

Element Status         Status Bytes  Status Descriptions
  1: CRITICAL          02,00,00,F3   DC FAIL, AC FAIL, OFF, RQSTED ON, FAIL
  2: OK                01,00,00,20   RQSTED ON
 
Fans:
Element Status         Status Bytes  Status Descriptions
  1: CRITICAL          02,00,00,F0   OFF, FAIL
  2: CRITICAL          02,00,00,F0   OFF, FAIL
  3: OK                01,01,2C,21
  4: OK                01,01,29,21

Enclosure:
Element Status         Status Bytes  Status Descriptions
  1: OK                01,00,02,00   FAIL

Voltage Sensors:
Element Status         Status Bytes  Status Descriptions
  1: UNRECOVERABLE     04,00,00,00
  2: UNRECOVERABLE     04,00,00,00
  3: OK                01,00,01,FB
  4: OK                01,00,04,C6

  • The affected PSU lights amber LED.

 

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