Troubleshooting the dmidecode check: Wake-up Type

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December 16, 2009 9:00 PM PST


Symptom

The dmidecode module of Intel® Cluster Checker reports inconsistencies in the “Wake-Up Type” value. The error may appear similar to the following example:

SMBIOS/DMI Uniformity,(dmidecode).............................................FAILED
subtest 'System Information (0x0002): Wake-up Type' failed
- failing hosts node-1, node-2 returned: 'AC Power Restored'
- failing host node-0 returned: 'Power Switch'

Modifying the Power Restore Policy or Restore on AC Power Loss setting, using either the IPMI/BIOS configuration interface or the Save and Restore System Configuration utility (syscfg), has no effect on this error.

Cause

The “Wake-Up Type” value does not represent the current setting for power restore or power-on response. It describes how the system was powered-on after the last power off, regardless of restore settings. This value may change after each boot, depending on what method was used to power-on the individual node.

Resolution

This value stores dynamic data and compute nodes are not expected to have identical data for this value. It can be ignored for the purposes of Intel® Cluster Ready certification and verification.

Exclude the value by adding an exclude element to the dmidecode block in the Intel® Cluster Checker configuration file. For example:

<dmidecode>
  <exclude>System Information (0x0002): Wake-up Type</exclude>
</dmidecode>

In Intel® Cluster Checker 1.4, the exclude element has been enhanced to support regular expression matching. In this case, the following option is sufficient:

<dmidecode>
  <exclude>Wake-up Type</exclude>
</dmidecode>

For more information on troubleshooting the dmidecode check, see this article. 


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This article applies to: Intel® Cluster Checker Knowledge Base,   Intel® Cluster Ready Knowledge Base