PowerScale OneFS: Event Notification: Power Supply Failure Detected in Switch xxxx on Int-x Fabric Event ID 200020009

Summary: OneFS: Event notification: Power supply failure detected in switch xxxx on int-xxx fabric (Event ID 200020009)

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Symptoms

Event

The following event notification (Event ID 200020009) is received. This event is generated when an internal Ethernet network switch for a cluster has detected a loss of power from one of the power supplies. 
Power supply failure detected in switch xxxx on int-xxx fabric

Cause

Details

This event notification is issued when one of the following conditions exists:
  • One of the power supplies in an internal network switch which is not providing power.
  • The power provided from the electrical outlet to the power supply is insufficient.

Resolution

Response

Before you begin troubleshooting the issue, confirm that the event is not related to maintenance on the cluster. After confirming that no maintenance is in progress, proceed with the following troubleshooting.

  1. Determine if the electrical outlet is functioning properly by plugging the power cable into a different electrical outlet.
  2. If the issue is not resolved by using a different outlet, try a replacement power cable.
  3. If power is not restored to the switch, contact Isilon Technical Support for assistance.

Troubleshooting steps:

  1. Check for the switch details to connect to it with commands:
# isi_dump_fabric int-a
# isi_dump_fabric int-b
# python -c "import isi.net.backendmon.util as u; print (u.intuit_switch_addr(\"int-a\")); print (u.intuit_switch_addr(\"int-b\"))"
  1. Connect to the switch and check Power Supply Unit (PSU) status (Make a support case if assistance is required connecting to the switch)
  2. Dell switches are used for backend connection, Check the PSU status using the following command:
# show system

example -
OS10# show system

Node Id              : 1
MAC                  : e8:b5:d0:b8:f6:e9
Number of MACs       : 640
Up Time              : 63 weeks 4 days 22:00:02

...snip 
hit enter for more until you see the PSU

-- Power Supplies --
PSU-ID Status      Type    AirFlow   Fan  Speed(rpm)  Status
----------------------------------------------------------------
1       up          AC      REVERSE   1    13770       up

2       fail
  1. Open a Service Request on Switch Serial Number and send out a new PSU if the above output shows an issue.

Affected Products

Isilon Switches
Article Properties
Article Number: 000168299
Article Type: Solution
Last Modified: 17 Sept 2025
Version:  12
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