Use the information in this section to troubleshoot a single
compute node that cannot ping the IBM Flex System Manager management
node in a different 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 compute node is the only one in the chassis
that the management node cannot ping. If it is not, follow the steps
in Multiple nodes cannot ping the management node in the same chassis.
Make sure that the compute node appears on the chassis map (it might
not be fully discovered by the management node software).
- Make sure that the IMM has acquired an IP address from the Chassis
Management Module (CMM) by using the Setup utility on the compute
node.
- 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.
- 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.
- Check the IBM Support Portal for any firmware 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.
- Check the IBM Support Portal for any service bulletins that are
related to network connectivity.
- Remove the compute node and make sure that the connectors on the
midplane and the node are not damaged.
- (Trained service technician only) Check the connectors on the
node and the midplane to make sure that no pins are bent.