Use the information in this section to troubleshoot multiple
nodes that cannot ping the IBM Flex System Manager management node
in the same chassis on the management network.
- Make sure that the management node is powered on and is not hung,
by logging in to the management node. If you are unable to log in
from the management network, attempt to log in from the data network.
If the management node is powered on and hung, perform a virtual reseat
of the management node from the Chassis Management Module (CMM).
- Make sure that the Chassis Management Module (CMM) is powered
on and is not hung, by pinging the Chassis Management Module (CMM)
from the management node:
- If the Chassis Management Module (CMM) is powered on and hung,
reset the Chassis Management Module (CMM).
- Make sure that the IMM, the management node, and Chassis Management
Module (CMM) are all on the same subnet.
- Make sure that the management network port (eth0) in the management
node is enabled.
- Make sure that the management node has an IP address, is on the
same subnet as the Chassis Management Module (CMM), and is able to
ping the Chassis Management Module (CMM).
- Make sure that the system-management processor in each compute
node has a valid IP address by checking the chassis map of the remote
chassis.
- Note: If the Chassis Management Module (CMM) recently lost connection
to the DCHP server, you must reset the IMM by using the Chassis Management
Module (CMM) interface so that a new IP address can be acquired.
- If a system-management processor does not have a valid IP address,
complete the following steps:
- Restart the Chassis Management Module (CMM).
- Check the IBM Support Portal for any firmware or software updates
that might apply to this issue. You can view the release notes for
a firmware update to determine the issues that are addressed by the
update.
- Remove and reinstall Chassis Management Module (CMM).
- Replace the Chassis Management Module (CMM).
- Check the IBM Support Portal for any service bulletins that are
related to network connectivity.
- Remove the management node and make sure that the connectors on
the midplane and the management node are not damaged.
- (Trained service technician only) Complete the following steps:
- Force the link/duplex speed.
- Check the connectors on the nodes and the midplane to make sure
that no pins are bent.
- Replace the I/O expansion card in the management node.
- Replace the management node.