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Fault LED of PSU repeatedly turns on and off in 9.12.1 and 9.13.1

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Category:
ontap-9
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hw
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Applies to

  • ONTAP 
    • 9.13.1 
    • 9.12.1P4 

Issue

  • The fault LED of PSU repeatedly turned on and off for about an hour after PSU replacement.
  • Multiple PSUs show as having power supply error in EMS log

Chassis PSUs

[node-02: env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 2 is degraded: PSU2 VIN is Critical Low (0 mV)
[node-02: env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 2 is degraded: PSU2 PIN is Critical Low (0 mW)
[node-02: env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 2 is degraded: PSU2 VOUT is Critical Low (0 mV)
[node-02: env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 2 is degraded: PSU2 IOUT is Critical Low (0 mA)
[node-02: env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 2 is degraded: PSU2 POUT is Critical Low (0 mW)
[node-02: wafl_exempt00: wafl.vol.snap_create.done:info]: params: {'type': 'Aggregate', 'owner': '', 'vol': 'AGGR_ROOT_node02', 'app': '', 'volident': '', 'run_time': '32545'}
[node-02: env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 2 is degraded: PSU2 Curr IIN is Critical Low (0 mA)
[node-02: env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 2 is degraded: PSU2 Hot is Critical Low (0 C)
[node-02: env_mgr: monitor.chassisPowerSupply.degraded:notice]: Chassis power supply 2 is degraded: PSU2 FAN is Critical Low (0 RPM)
[node-02: env_mgr: monitor.chassisPowerSupply.off:notice]: Chassis power supply 2 off.
[node-02: env_mgr: callhome.chassis.ps.degraded:error]: Call home for CHASSIS POWER SUPPLY DEGRADED: PS 2
[node-02: env_mgr: callhome.chassis.ps.off:error]: Call home for CHASSIS POWER SUPPLY OFF: PS 2

Shelf PSUs

[node-02: dsa_worker5: ses.status.psError:alert]: DS224-12 (S/N XXXXXXXXXXXXXXXX) shelf 11 on channel 0d power error for Power supply 2: critical status; power supply error. This module is on the rear of the shelf at the bottom right.

[node-02: dsa_worker5: ses.status.psError:alert]: DS224-12 (S/N XXXXXXXXXXXXXXXX) shelf 12 on channel 0d power error for Power supply 2: critical status; power supply error. This module is on the rear of the shelf at the bottom right.
[node-02: dsa_worker5: callhome.shlf.power.intr:error]: Call home for SHELF POWER INTERRUPTED

  • Confirmed no issue with connected PDU (power distribution unit)
  • Power supply status from environment status may flip from good to  CRITICAL

::> node run -node <node_name> environment status

 Enclosure Status: unrecoverable
Channel: 0a
Shelf: 11
Shelf Type: DS224-12
Product Serial Number: XXXXXXXXXXXXX
Module Type: IOM12

Power Supplies:
Element Status         Status Bytes  Status Descriptions
1: OK                01,00,00,20   RQSTED ON
2: CRITICAL          02,00,00,F3   DC FAIL, AC FAIL, OFF, RQSTED ON, FAIL


Enclosure Status: unrecoverable
Channel: 0b
Shelf: 30
Shelf Type: DS224-12
Product Serial Number: XXXXXXXXXXXXX
Module Type: IOM12

Power Supplies:
Element Status         Status Bytes  Status Descriptions
1: OK                01,00,00,20   RQSTED ON
2: CRITICAL          02,00,00,F3   DC FAIL, AC FAIL, OFF, RQSTED ON, FAIL

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