HP Insight Cluster Management Utility - Manual (Page 30)

2.4.3.2 HP Insight CMU HA service requirements
When you configure the HA software layer, configure the HP Insight CMU HA service with the
following resources:
•
A shared file system. The mount point of this file system must be /opt/cmu-store and must
be created on all HP Insight CMU management servers.
•
A shared IP address.
•
If your HP Insight CMU cluster uses separate site and compute networks, an additional IP
address resource must be configured and assigned to your HP Insight CMU HA service.
•
The HP Insight CMU HA service must be able to invoke the /etc/init.d/cmu script with
start
and stop parameters:
# /etc/init.d/cmu start
# /etc/init.d/cmu stop
2.4.3.3 Installing and testing
1. Install the HP Insight CMU rpm as described in “Installation procedures” (page 22) . Be sure
all prerequisites are fulfilled.
2. To test HP Insight CMU on the first cluster member, run the HP Insight CMU software. Verify
that the HP Insight CMU software performs correctly.
2.4.4 Configuring HA control of HP Insight CMU
IMPORTANT: During the following procedure, results of the /etc/init.d/cmu script are saved
to /var/log/cmuservice_hostname.log where hostname is the host name of the HP Insight
CMU management cluster member. Refer to these log files for troubleshooting.
1. If HP Insight CMU is running, set audit mode before you stop HP Insight CMU:
cmuadmin1# /etc/init.d/cmu set_audit
cmuadmin1# /etc/init.d/cmu stop
2. In /opt/cmu/etc/cmuserver.conf, the CMU_CLUSTER_IP variable defines the IP address
used by compute nodes to reach the management cluster. This variable must be set with the
same IP address defined as the shared IP address resource for the compute network on the
HP Insight CMU HA service:
CMU_CLUSTER_IP=X.X.X.X
Where X.X.X.X is the address known by compute nodes to reach the management node.
3. Start the HP Insight CMU cluster HA service. Use the appropriate command for your HA
software to start the service on the first management cluster member. As a result of starting
the service, the following resources must be available:
•
The shared file system mounted on /opt/cmu-store
•
The cluster IP address
4. Run cmu_ha_postinstall:
cmuadlmin1# /opt/cmu/tools/cmu_ha_postinstall
*** starting setup procedure to operate CMU in HA (Highly Available) environment
*** note: this only affects the management nodes of the HPC cluster
**********************************************************************
requirements to building an Highly Available cluster of cmu mgt nodes:
**********************************************************************
* *
* 1] a shared filesystem mounted at /opt/cmu-store *
* *
* it must support locking via flock() *
* it must be mounted only by one (active) cmu mgt node at a time *
30 Installing and upgrading HP Insight CMU