Use the information in this section to troubleshoot the
chassis when multiple nodes cannot connect to the network during initial
setup.
Action
Complete the following steps until
the problem is solved:
- If you have just updated the firmware for one or more devices
in the chassis (such as an I/O module or Chassis Management Module),
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.
- Verify that all cables between the I/O module and the network
device (switch or router) are correctly connected and secure and that
the activity LEDs are lit on the applicable ports.
- From the compute node operating system, verify that the network
device is active. See the documentation that comes with the operating
system for information about viewing network devices. From the compute
node operating system, check the network settings, such as IP address,
subnet mask (if you are using IPv4), DNS, DHCP settings, and vLAN
settings, to make sure that the settings match the settings of the
network device. See the documentation that comes with the operating
system for information about checking network settings.
- 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.
- 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 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.