Use the information in this section to troubleshoot a single
compute node 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 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 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.
- In the Chassis Management Module (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, configure the IMM network
settings correctly.
- 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) Complete the following steps:
- Force the link/duplex speed.
- Check the connectors on the node and the midplane to make sure
that no pins are bent.
- Replace the system-board assembly (see Removing the system-board
assembly and Installing the system-board assembly).