Skip to main content

Power-on problems

Use this information to resolve power-on problems.

Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

The power-on problems table is a two-column table that lists the symptoms and corrective actions for power-on problems. Column 1 lists the symptom. Column 2 describes the corrective actions for each symptom.

  • Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved.
  • See Parts listing, Types 7167 and 2590 to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU) that must be replaced only by a trained service technician.
  • If an action step is preceded by (Trained service technician only), that step must be performed only by a trained service technician.
SymptomAction
Single node does not power on
  1. Check the event logs for any events that are related to the compute node, and solve them. If a management node is available, check the event log on the management node. Otherwise, the Chassis Management Module event log.
  2. Make sure that the CMM can recognize the compute node. Log in to the CMM user interface and verify that the compute node appears in the chassis view. If the CMM cannot recognize the compute node, remove the compute node and inspect the compute node and the back of the node bay to make sure that there is no physical damage to the connectors.
  3. Make sure that the power policy that is implemented on the CMM is sufficient to enable the compute node to power on. You can view the power policy from the CMM user interface (click Power Management > Power Modules and Management).
  4. Make sure that the management node has completed the discovery of the compute node. Log in to the management node user interface and verify that the compute node appears in the list of manageable systems.
  5. Replace the compute node.
    Note
    Until you are able to replace the compute node, you can attempt to power on the compute node from the CMM or from the management node user interface.
Multiple nodes do not power on

Check the event logs for any events that are related to the compute nodes, and solve them. If a management node is available, check the event log on the management node. Otherwise, check the Chassis Management Module event log.

Compute node does not power off
  1. Attempt to power off the compute node through the management node user interface, if a management node is available. Otherwise, attempt to power off the compute node through the CMM user interface.
  2. Attempt to restart the system-management processor for the compute node. You can restart the system-management processor through the CMM user interface. Click the compute node in the chassis view and then click Restart System Mgmt Processor. After the system-management processor has been restarted, attempt to power off the compute node from the CMM.
  3. Attempt to power off the compute node by using the power button on the front of the node.
  4. Attempt to reset the compute node from the CMM command-line interface (CLI) by using the reset command.
  5. Reseat the CMM; then, perform steps 1-4 again.