ALERT: Some images may not load properly within the Knowledge Base Article. If you see a broken image, please right-click and select 'Open image in a new tab'. We apologize for this inconvenience.

Storage array alert condition for fan module

book

Article ID: 239449

calendar_today

Updated On:

Products

Security Analytics

Issue/Introduction

The fan module for the U840 and U144, (also known as ME4084 and ME4012), may report that a fan control module has failed.  The error found in the audit logs is:

"An Enclosure Management Processor (EMP) reported an alert condition on a fan. Type: fault. (enclosure: 0, WWN: 500C0FE0000B453C) fan 8 (Fan 0, Enclosure 0, Fan Module 4), fan status: Failed;"

The fan will report as failed in the array but the problem will be resolved within a minute.  This may be repeated many times during the day.

Cause

This is due to a bug in the firmware for the storage array.

Environment

Component : U840 ME4084 and U144 ME4012

Resolution

Upgrade the firmware for the management controller to release GT280R009-02 or newer.  The update can be done while the system is in production.  The instructions on how to update the firmware are found at Upgrading firmware on the Dell U144 and U184 storage arrays

As an example from the event logs:

B167       2022-03-14 09:17:57  552   ERROR          An Enclosure Management Processor (EMP) reported an alert condition on a fan. Type: fault. (enclosure: 0, WWN: 500C0FE0000B453C) fan 8 (Fan 0, Enclosure 0, Fan Module 4), fan status: Failed
B168       2022-03-14 09:17:57  200   INFORMATIONAL  Auto-write-through trigger event: fan failed.
A155       2022-03-14 09:18:02  552   ERROR          An Enclosure Management Processor (EMP) reported an alert condition on a fan. Type: fault. (enclosure: 0, WWN: 500C0FE0000B453C) fan 8 (Fan 0, Enclosure 0, Fan Module 4), fan status: Failed
A156       2022-03-14 09:18:02  200   INFORMATIONAL  Auto-write-through trigger event: fan failed.
B169       2022-03-14 09:18:57  552   RESOLVED       An Enclosure Management Processor (EMP) reported an alert condition on a fan. Type: resolved. (enclosure: 0, WWN: 500C0FE0000B453C) fan 8 (Fan 0, Enclosure 0, Fan Module 4)