IBM Flex System x440 Compute Node, Installation And Service Manual

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5. Replace the CMM.
6. Make sure that the compute node IMM has acquired an IP address from the
CMM by using the Setup utility on the node.
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 http://www.ibm.com/supportportal/ 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 http://www.ibm.com/supportportal/ for any service bulletins that are
related to network connectivity.
11. (Trained service technician only) Complete the following steps:
a.
Force the link/duplex speed.
b. Check the connectors on the CMM to make sure that no pins are bent.
c. Check the connectors on the chassis midplane to make sure that no pins
are bent.
d. Remove the CMM and install a working CMM in the same bay.
v
If the problem is solved, replace the CMM that you removed.
v
If the problem remains, replace the midplane.
CMM cannot ping the CMM in a different chassis:
Use the information in this section to troubleshoot a CMM that cannot ping the
CMM in a different chassis.
Action
Complete the following steps until the problem is solved:
1. Make sure that the Chassis Management Modules are powered on and the
applicable ports are enabled.
a. If the CMM is powered on and hung, reset the CMM.
b. Make sure that the IMM, the management node, and the CMMs are all on
the same subnet.
2. Verify that the cables between the CMMs and the top-of-rack switch are
correctly connected and that the activity LEDs are lit on the applicable ports.
3. Make sure that the management node has a correct IP address and is on the
same subnet as the CMMs.
4. Make sure that the compute node IMM has acquired an IP address from the
CMM by using the Setup utility on the node.
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.
Chapter 6. Troubleshooting
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