HP Insight Cluster Management Utility - Manual (Page 33)

e. Unset the audit mode on the new member:
# /etc/init.d/cmu unset_audit
cmu ha:cmu service needs (re)start
f. Start HP Insight CMU under HA control.
g. Use your HA tool to migrate the HP Insight CMU HA service on the new member.
2.4.5 HP Insight CMU configuration considerations
The HA installation procedures described in “Installing HP Insight CMU under HA” (page 29) and
“Configuring HA control of HP Insight CMU” (page 30) convert a standalone HP Insight CMU
administration node into an HP Insight CMU HA administration cluster. During this procedure, the
cmu_ha_postinstall
script behaves as follows with respect to HP Insight CMU configurations:
•
The cmu_ha_postinstall script saves the local HP Insight CMU configuration of individual
servers. For the configuration example in
“Configuring HA control of HP Insight CMU”
(page 30) , cmuconf0-xxxx.sav is the local configuration file for the first server, and
cmuconf1-yyyy.sav is the local configuration file for the second server. The local
configuration is restored to the shared filesystem /opt/cmu-store on the first server that
runs cmu_ha_postinstall. This HP Insight CMU configuration is made available to other
HP Insight CMU management servers.
•
When cmu_ha_postinstall runs on the first HP Insight CMU management server,
cmu_ha_postinstall
does not save any cluster-wide configuration. The following message
appears:
cmu_ha: nothing to backup from the cmu HA share
•
When cmu_ha_postinstall runs on the second HP Insight CMU management server,
cmu_ha_postinstall
saves a cluster-wide configuration. For the configuration example
in “Configuring HA control of HP Insight CMU” (page 30) , this configuration file is
cmuconf2-zzzz.sav .
Using this example, you do not have to manually restore any configuration. All necessary save
and restore operations are performed by the cmu_ha_postinstall script. Other scenarios
might require a manual intervention. For example, using different members of a future HP Insight
CMU administration cluster in standalone mode might result in different configurations on each HP
Insight CMU management server. The resulting cluster-wide configuration will reflect only one of
these configurations. These different configurations cannot automatically merge.
2.4.6 Upgrading HP Insight CMU HA service
To upgrade an HP Insight CMU management cluster under control of an HA software layer:
1.
Set audit mode on server 1, which is the server currently running the HP Insight CMU HA
service.
2. Remove the previous HP Insight CMU rpm on server 1.
3. Install the new HP Insight CMU rpm on server 1.
4. Relocate the HP Insight CMU HA service to server 2.
5. Set audit mode on server 2.
6. Remove the previous HP Insight CMU rpm on server 2.
7. Install the new HP Insight CMU rpm on server 2.
8. Run cmu_ha_postinstall on server 2.
9. Unset the audit mode on server 2.
10. Relocate the HP Insight CMU HA service to server 1.
11. Run cmu_ha_postinstall on server 1.
12. Restore the cluster-wide configuration on server 1.
2.4 Installing HP Insight CMU with high availability 33