Knowledge Article: ID X0A20001 " OS hung and restarted

Description

This Operating System running on the server either hung or rebooted.

Causes

This alert is generated when the operating system locks up and no longer responds. Subsequently, a system restart (reboot) begins. The alert is supported on servers with Intelligent Platform Management Interface (IPMI).

Implications

This alert should be discussed at the earliest opportunity.

Resolutions

1.    Follow the suggested actions:
       "    Contact your authorized operators and/or system administrators.
       "    Consult the System User Guide.
       "    Gather all the available information about your Alert.
       "    Retain the full recorded logs.

2.    Monitor the system for future events, keep track of all alerts, events and logs.

Additional information

To troubleshoot issues with the OSA IPMI device driver or the BMC, visit the "IBM System x support search" Web site, select "Troubleshooting" for "Task", and then select the "Product Family", "Machine type", and "Operating system" values of interest. Then, for "Refine results" select either "OSA IPMI" or "Baseboard Management Controller (BMC)". In the result list, follow the appropriate links, and then read through the articles and follow the applicable instructions. For BladeCenter x86 blade servers, visit the IBM BladeCenter support search Web site and follow similar steps.

To download the latest OSA IPMI device driver, the latest BMC firmware, or both, visit the "IBM System x support search" Web site, select "Download" for "Task", and then select the "Product Family", "Machine type", and "Operating system" values of interest. Then, to download the latest device driver, select "OSA IPMI" in the "Refine results" list; to download the latest BMC firmware, select "Baseboard Management Controller (BMC)" instead. In the result list, click the appropriate link. For BladeCenter x86 blade servers, visit the IBM BladeCenter support search Web site and follow similar steps.

For the compatibility matrix between IBM System x systems and Windows, consult IBM ServerProven System x and xSeries compatibility - Microsoft.

For complete product information about IBM RSA-II, visit IBM Remote Supervisor Adapter II. To plan for systems management upgrades with RSA-II, consult IBM ServerProven System x System Management Upgrades.