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One of the power supplies(PSU) of ATTO 7500N/7600N FibreBridge is not online

Last Updated:

Applies to

  • ATTO 7500N FibreBridge
  • ATTO 7600N FibreBridge


  • Not all of the power supplies of the ATTO 7500N/7600N FibreBridge are online
  • There is no power maintenance currently on-going
  • No issue with the power source - error remains with different outlet/PDU:

WARNING: Do not re-seat the power supplies for troubleshooting purposes.

  • Power cable is checked and properly seated
  • Event log reporting power supply failed: 

    Tue Jul 11 15:02:12 +0200 [NodeA_1: dsbridge_admin: fc.bridge.power.alert:alert]: Fibre Channel FibreBridge7600N Bridge ATTO_200000xxxxxx S/N: FB7600Nxxxxxx WWN: 200000xxxxxx Power Supply A has failed.
  • ONTAP reports an error for a failed power supply:

::>system health alert show -alert-id StorageBridgePowerSupplyFailed_Alert

Node: node01
           Resource: Power Supply
           Severity: Major
    Indication Time: Wed Nov 17 21:25:25 2021
           Suppress: false
        Acknowledge: false
     Probable Cause: Power Supply B of "ATTO_10.x.x.x" has failed.
    Possible Effect: If the remaining power supply fails,
                     "ATTO_10.x.x.x" will go offline, causing a loss of path redundancy to storage.
 Corrective Actions: 1) Check the power source for the bridge, the power cords and fuses.
                     2) If the problem cannot be corrected, replace the failed power supply. 



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