Power Fault Alert - Autosupport Message

Applies to

• Data ONTAP 7 and earlier
• ONTAP 8
• ONTAP 9

Event Summary

The messages below indicates one of the following conditions:

• Power supply has been turned off or unplugged.
• Power to the data center or to/from the Power Distribution Unit (PDU) either failed or fluctuated.
• Shelf power supply has malfunctioned.
• Faulty power cable
• Circuit breaker tripped and later power has been restored.

A syslog message indicates which one of the above conditions exist. Power Supply (2) is redundant in the shelves.

Shelf fault SHLFLT: System Notification from Filer1 (SHELF POWER INTERRUPTED) WARNING
AutoSupport PWRFLT:System Notification from Filer1 (SHELF POWER INTERRUPTED) WARNING 

[ses.status.psWarning:warning]: DS14-Mk2-AT shelf 1 on channel 2a power warning for Power supply 2: non-critical status; DC undervoltage fault. This module is on the rear side of the shelf, at the right.       
[ses.status.psError:CRITICAL]: DS14-Mk2-AT shelf 1 on channel 2a power error for Power supply 2: critical status; power supply failed. This module is on the rear side of the shelf, at the right.

AutoSupport message: Shelf Power Interrupted

You might also see the following AutoSupport messages:

  SHELF_FAULT
  SHELF COOLING UNIT FAILED
  FAN FAIL

Validate

Verify which shelf is reporting the error. The error message indicates the shelf ID and channel, but this might not be useful in locating the component with an error. To check the component(s) with an issue, run the  environment status command, which will print the complete status for every shelf.

NetApp-01::> system node run -node Netapp-01A -command environment status 
Channel: 2a
        Shelf: 1
        SES device path: local access: 2a.18
        Module type: AT-FCX; monitoring is active
        Shelf status: critical condition
        SES Configuration, via loop id 79 in shelf 5:
        logical identifier=0x50050cc00219fae3
        vendor identification=XYRATEX 
        product identification=DS14-Mk2-AT
        product revision level=3737
        Vendor-specific information:
        Product Serial Number: OPSxxxxxxxxxxxx
        Optional Settings: 0x00
        Status reads attempted: 1336282; failed: 0
        Control writes attempted: 9756; failed: 0
        Shelf bays with disk devices installed:
        13, 12, 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
        Power Supply information by element:
        [1] Serial number: PMCxxxxxxxxxxxx
        Type: 5c
        Firmware version: <N/A>
        [2] Serial number: PMCxxxxxxxxxxxx
        Type: 5c
        Firmware version: <N/A>
        Cooling Unit installed element list: 1, 2; with error: none
        Temperature Sensor installed element list: 1, 2, 3; with error: none
        Shelf temperatures by element:
        [1] 22 C (71 F) (ambient) Normal temperature range
        [2] 42 C (107 F) Normal temperature range
        [3] 38 C (100 F) Normal temperature range
        Temperature thresholds by element:
        [1] High critical: 50 C (122 F); high warning 40 C (104 F)
        Low critical: 0C (32 F); low warning 10 C (50 F)
        [2] High critical: 63 C (145 F); high warning 53 C (127 F)
        Low critical: 0C (32 F); low warning 10 C (50 F)
        [3] High critical: 63 C (145 F); high warning 53 C (127 F)
        Low critical: 0C (32 F); low warning 10 C (50 F)
        ES Electronics installed element list: 1, 2; with error: none
        ES Electronics reporting element: 1
        ES Electronics information by element:
        [1] Serial number: IMSxxxxxxxxxxxx
        CPLD version: 24
        [2] Serial number: IMSxxxxxxxxxxxx
        CPLD version: 24

Resolution

• Verify which shelf is reporting the error. The error message indicates the shelf ID and channel, but this might not be useful in locating the component with an error. To check the component(s) with an issue, run the  environment status command, which will print the complete status for every shelf.
• Check the site for power issues.
• Check power cable with a known working cable.
• Check that both fans are turning. If one fan is turning slower, it can signal a failing power supply.
• Check if the power supply is working; a red light should be ON. If the shelf power supply has malfunctioned, it might require a replacement. If you need a replacement shelf power supply, contact NetApp Technical Support or request a replacement using the NetApp Support site.