PSU on FAS or AFF shows DC undervoltage

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Category:: aff-series

Specialty:: HW

Last Updated:

Applies to

FAS / AFF
ONTAP 9

Issue

Single PSU shows dc-undervoltage:

::> storage shelf show -power

Power Supply Units:

Crest Power Reset PSU Operational

ID Type Part#        Serial#       Power Rating   Factor Drawn   Capable Enabled Firmware Status           PSU Location

--- ---- ------------ --------------- -------------- ------ ------- ------- ------- -------- ---------------- ------------------------

1 00 XXX-XXXXXX-XX X XXXXXXXXXXXXXX 1600         -      472     false   true    XX.XX.XX normal           rear of the shelf at the top left

2 00 XXX-XXXXXX-XX X XXXXXXXXXXXXXX 1600         -      9       false   true    XX.XX.XX dc-under-voltage rear of the shelf at the bottom left

EMS log:

Mon Jan 01 XX:XX:XX +XXXX [cluster-01: statd: monitor.shelf.fault:alert]: Critical fault reported on disk storage shelf attached to channel 0x. Check fans, power supplies, disks, and temperature sensors.

Mon Jan 01 XX:XX:XX +XXXX [cluster-01: notifyd: asup.throttle.drop:notice]: Too many AutoSupport messages in too short a time, throttling AutoSupport: HA Group Notification from cluster-01 (SHELF POWER SUPPLY WARNING) ERROR

Mon Jan 01 XX:XX:XX +XXXX [cluster-01: dsa_workerX: ses.status.psWarning:error]: XXXXXXXXX (S/N SHFHUXXXXXXXXXX) shelf 0 on channel 0x power warning for Power supply 2: warning status; DC undervoltage. This element is on the unknown location.

Mon Jan 01 XX:XX:XX +XXXX [cluster-01: dsa_workerX: callhome.shlf.ps.fault:error]: Call home for SHELF POWER SUPPLY WARNING

Trap message:

2024/8/18 21:01:38 cluster cluster-01 sesShelfPowerSupplyWarn 2024/8/18 21:01:38 cluster cluster-01 sesShelfPowerSupplyWarn

ENVIRONMENT log:

Channel: ** Shelf: ** SES device path: local access: Module type: IOM12; monitoring is active Shelf status: unrecoverable condition SES Configuration, shelf 10: logical identifier=** vendor identification=NETAPP product identification=DS212-12 product revision level=0311 Vendor-specific information: Product Serial Number: Status reads attempted: 1155061; failed: 0 Control writes attempted: 0; failed: 0 Shelf bays with disk devices installed: 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 with error: none Power Supply installed element list: 1, 2; with error: 2