Undetermined problems

Any undetermined problem​

1. Check the IMM event log and follow the suggested actions to resolve any event codes (see IMM event log).
2. Find the symptoms that you are experiencing in the troubleshooting tables in this section and follow the suggested actions to solve any problems.
3. If the problem remains, submit a service request (see Getting help and technical assistance).

Compute nodes are not discovered by the Flex System Manager management node or the CMM​

1. Make sure that the compute node is recognized by the Flex System Manager management node (if installed) or the CMM. It might appear as an unknown device in the chassis map. If it is not recognized, complete the following steps:
   1. 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 connectors.
   2. Move the compute node to another node bay.
   3. Replace the system-board assembly (see Removing the system-board assembly and Installing the system-board assembly).
2. Make sure that the Flex System Manager management node or the CMM can ping the compute nodes. If it cannot, see Cannot ping the Flex System Manager management node on the management network.
3. If the compute nodes are in another chassis, make sure that you have the necessary software entitlements to manage that chassis with the Flex System Manager management node.
4. Check the Lenovo Support Portal for any firmware updates that might apply to this issue. You can view the release notes for a firmware update to determine the issues that are addressed by the update.
5. Check the Lenovo Support Portal for any service bulletins that are related to network connectivity.