Lenovo Flex System x280 X6 Compute Node Installation And Service Manual page 687

the IP address that is displayed in the Setup utility. If it is not the same IP
address, configure the IMM network settings correctly or reset the IMM to
automatically acquire a new IP address.
7. Check the IBM Support Portal for any firmware updates that might apply to
this problem. You can view the release notes for a firmware update to
determine the issues that the update addresses.
8. Check the IBM Support Portal for any service bulletins that are related to
network connectivity.
9. Remove the compute node from the chassis and check the connectors on the
back of the node and on the midplane for bent pins. If the pins are bent,
contact IBM Support.
10. (Trained service technician only) Complete the following steps:
11.
a. Force the link/duplex speed.
b. Check the connectors on the nodes and on the midplane to make sure that
no pins are bent.
c. Replace the I/O expansion card in the management node.
d. Replace the management node.
Multiple nodes cannot ping the CMM in the same chassis (Management
Network):
Use the information in this section to troubleshoot multiple nodes that cannot ping
the Chassis Management Module (CMM) on the management network in the same
chassis.
1. Make sure that the Chassis Management Module is powered on and the
applicable ports are enabled on the CMM. If the CMM is hung, reset the
CMM.
2. Reset the CMM.
3. Check for firmware updates for the CMM.
4. Reset the CMM to factory defaults and attempt to discover the nodes again.
Allow enough time for the IMMs to acquire a network address.
5. Make sure that the compute node IMM has acquired an IP address from the
CMM by using the Setup utility on the node.
6. Note: If the CMM recently lost connection to the DCHP server, you must reset
the IMM by using the CMM interface so that a new IP address can be
acquired.
7. In the CMM user interface, click Chassis Management > Component IP
Configuration and make sure that the IP address that is listed is the same as
the IP address that is displayed in the Setup utility. If it is not the same IP
address, configure the IMM network settings correctly or reset the IMM to
automatically acquire a new IP address.
8. Check the IBM Support Portal for any firmware updates that might apply to
this problem. You can view the release notes for a firmware update to
determine the issues that the update addresses.
9. Remove the compute node from the chassis and check the connectors on the
back of the node for bent pins. If the pins are bent, contact IBM Support.
10. Check the IBM Support Portal for any service bulletins that are related to
network connectivity.
11. (Trained service technician only) Complete the following steps:
12.
Chapter 6. Troubleshooting
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