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ii. Create the spot resource:
•
/usr/lpp/bos.sysmgt/nim/methods/m_mkspot -o -a server=master -a
•
location=/install/nim/spot/ -a source=no <osimage>
iii. Check if the osimage includes any of the following resources:
•
"installp_bundle", "script", "root", "tmp", "home"
•
"shared_home", "dump" and "paging"
If the resources exist, use the following commands:
•
/usr/sbin/nim -Fo define -t <type> -a server=master -a
location=<location>
•
<osimagename>_<type>"
d. To create all the necessary NIM resources, use the resource location returned by
"lsdef -t osimage -l" command.
If the osimage includes shared_root resource is defined, the shared_root resource
directory must be removed before the shared_root resource is created, as shown in the
following example:
rm -rf /install/nim/shared_root/71Bshared_root/
/usr/sbin/nim -Fo define -t shared_root -a server=master -a
location=/install/nim/shared_root/71Bshared_root -a spot=71Bcosi
71Bshared
NIM master: If the NIM master was running on the standby management node
before failover, the NIM master hostname must be changed. Make this change by
using smit nim to perform the NIM master hostname change.
If you are experiencing Secure Shell (SSH) issues when you are attempting to secure
the compute nodes or any other nodes, the hostname in the SSH keys under the
$HOME/.ssh directory must be updated.
e. Run nimnodeset or mkdsklsnode
Before run nimnodeset or mkdsklsnode, make sure the entries in file /etc/exports
match the exported NIM resources directories, otherwise, you receive exportfs errors
and nimnodeset/mkdsklsnode is not completed successfully.
Performing management operations
After these steps are completed, the standby management node is ready to manage the
cluster, and you run any xCAT commands to manage the cluster. For example, if the diskless
nodes need to be rebooted, you can run the following command to initialize the network
reboot:
rpower <noderange> reset or rneboot <noderange>
Complete the following steps to restart the NFS service and re-export the NFS exports:
1. On AIX, run the following commands:
a. exportfs -ua
b. stopsrc -g nfs
c. startsrc -g nfs
d. exportfs -a
Chapter 3. Monitoring assets
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