Cisco Cisco ME 3600X Series and ME 3800X Series DC power supply Guida Alla Risoluzione Dei Problemi

Contributed by Dixon Ho and Vishal Mehta, Cisco TAC Engineers.
May 03, 2013

Introduction
Continuous Messages for GPIO Access Failure
     Nexus 5000 and NX−OS Version Earlier than 5.0(3)N2(1)
     Nexus 5000 and NX−OS Version 5.0(3)N2(1) or Later
     Nexus 7000
Other Failure Messages for FEX Power Supply
Troubleshooting
Related Information

This document describes failure messages and general troubleshooting procedures for the Cisco Fabric
Extender (FEX) power supply.

In this example, the logs reveal continuous messages for general purpose input/output (GPIO) access failure:

%SATCTRL−FEX133−2−SOHMS_DIAG_ERROR: FEX−133 Module 1: Runtime diag 

detected major event: GPIO access failure

%SATCTRL−FEX133−4−SOHMS_PS_GPIO: FEX−133 System PS access failure 

on Power supply: 1

%SATCTRL−FEX133−4−SOHMS_PS_GPIO: FEX−133 System PS access failure 

on Power supply: 2

The appropriate solution depends upon the software version on the Nexus 5000 or Nexus 7000.

This is a known cosmetic issue; see Cisco bug ID CSCtl77867 (FEX PS runtime diag detected major event:
GPIO access failure). The solution is to reload the FEX or upgrade to version 5.0(3)N2(1) or later.

See Cisco bug ID CSCtz84683 (continuous GPIO access failure message seen on FEX).

Note: Only FEX power supplies with serial numbers that start with DTN are affected; power supplies with
serial numbers that start with LIN are not affected.