Use the information in this section to troubleshoot a single
compute node that cannot ping the I/O module.
Action
Complete the following steps until
the problem is solved:
- If you have recently updated the firmware for one or more devices
in the chassis (I/O module) and have verified the network settings,
install the previous level of firmware.
- Make sure that the I/O module is powered on and the applicable
ports are enabled on the I/O module.
- Make sure that all network cables are correctly connected and
that the activity LEDs are lit. If the cables are correctly connected
and the LEDs are not lit, replace the cable.
- 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 are addressed
by the update.
- Remove the node from the chassis and check the connectors at the
back of the node for bent pins. If the pins are bent, go to the IBM Support Portal to submit a service request.
- Install the compute node in another node bay, if one is available.
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 the IBM Support Portal for any service
bulletins that are related to I/O-module connectivity.
- If the problem remains, replace the I/O module, and go to the IBM Support Portal to submit a service request.
- (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 I/O module and install a working I/O module in the
same I/O bay.
- If the problem is solved, replace the I/O module that you removed.
- If the problem remains, replace the midplane.