The diags command

This topic provides an overview of the adapter diagnostics diags command.

You can use the diags command to display information about all devices that are installed in the engine. In addition, you can also run diagnostic tests for each available adapter card in the engine. The list of tasks available for the adapter card is based on the operational mode of the engine:
  • In normal operations mode, you can perform these tasks for a device:
    • Flash the blue "identity" LED on this engine for 2 minutes. This allows you to quickly find the engine in a rack.
    • View the diagnostic error log for this engine. The diagnostic error log displays the log from the last time that the diagnostic tests were run.
    • View the Remote Supervisor Adapter II event log.
    • View the service history log. The service history log provides a list of all changes that have been made to the devices in the engine, such as when a device was replaced or its firmware was updated. The log is located in /var/log/jupiter/service-history.txt and is cumulative. It continues to be updated until it is deleted or the hard drive fails.
    • Reboot or shut down the engine. You will need to reboot the engine when switching between normal operations mode and service mode. You can also reboot the engine to ensure that the latest device information is available.
  • In service mode, you can perform all of the tasks that are available in normal operations mode. In addition, you can perform these tasks:
    Note: You must be logged in as root to run the diagnostic tests.
    • Run the adapter test.
    • Loop the adapter test until an error occurs or until you manually stop the test.
    • Stop a looping test.
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