Isnm; Checking The Status And Recycling The Hardware Server And The Cnm - IBM Power Systems 775 Manual

4.2 ISNM

This section describes some problem scenarios that might be encountered in the areas of
Integrated Switch Network Manager (ISNM) and Central Network Manage (CNM). This
section also provides a practical understanding of the two types of hardware connections
between the various components: the topology and the communication paths. Several CNM
commands are shown in examples to identify and correct common CNM issues.

4.2.1 Checking the status and recycling the hardware server and the CNM

There are instances in which it is necessary to manually stop, start, or recycle the hdwr_svr
and the CNM, as shown in Example 4-6. For example, when a change or update is
implemented on the cluster.
Example 4-6 Confirming status of hdwr_svr and cnm
# ps -ef | grep isnm
root 6750532
-Dhcdaemon -Dfsp run_hmc_only
root 7668424
To recycle the hdwr_svr, use the following kill the hdwr_svr process that is identified in
Example 4-6:
# kill 6750532
Restart the following hdwr_svr:
# /opt/isnm/hdwr_svr/bin/hdwr_svr -Dhcdaemon -Dfsp run_hmc_only &
To recycle CNM, issue the following command:
# chnwm -d
As shown in the following example, CNMD is deactivated successfully:
# chnwm -a
If CNM is deactivated, it must be activated so that the threads come up in timely fashion and
the daemon is running. Confirm that hdwr_svr and CNM are running as shown in the following
example:
# ps -ef | grep isnm
root 6619386
root 3539474
-Dhcdaemon -Dfsp run_hmc_only
Important: The hdwr_svr and CNM processes are stopped, started, and recycled
independently.
1 0 Oct 12 - 34:54 /opt/isnm/hdwr_svr/bin/hdwr_svr
1 0 Oct 14 - 93:05 /opt/isnm/cnm/bin/cnmd
1 0 15:15:41
1 0 15:06:24
- 0:03 /opt/isnm/cnm/bin/cnmd
- 4:25 /opt/isnm/hdwr_svr/bin/hdwr_svr
Chapter 4. Troubleshooting problems
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