Use the information in this section to troubleshoot a single
compute node that cannot ping the CMM on
the management network in the same chassis.
Complete the following steps until the problem is solved:
- Make sure that the Chassis Management Module is
powered on and the applicable ports are enabled on the CMM.
- 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.
- 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.
- Check Lenovo Support 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.
- 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 Lenovo Support.
- Install the compute node in another node bay to determine whether
the problem remains. If the problem remains, make sure that the compute
node is connected to a port that has been enabled and that the vLAN
settings allow that port to connect to the network.
- Check Lenovo Support for any service
bulletins that are related to network connectivity.
- (Trained service technician only) Complete the following steps:
- Force the link/duplex speed.
- Check the connectors on the I/O module to make sure that no pins
are bent.
- Check the connectors on the chassis midplane to make sure that
no pins are bent.
- Remove the CMM and
install a working CMM in
the same bay.
- If the problem is solved, replace the CMM that
you removed.