HP Insight Cluster Management Utility manual HP Insight CMU configuration considerations

cmuadmin1

cmuadmin2

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 25) and “Configuring HA control of HP Insight CMU” (page 26) 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 26), cmuconf0-xxxx.savis the local configuration file for the first server, and cmuconf1-yyyy.savis the local configuration file for the second server. The local configuration is restored to the shared filesystem /opt/cmu-storeon 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 26), 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.

2.4 Installing HP Insight CMU with high availability 29