Designing Disaster Tolerant High Availability Clusters, 10th Edition, March 2003 (B7660-90013)

Building a Continental Cluster
Building the ContinentalClusters Configuration
Chapter 5216
# cmqueryconcl -C cmconcl.config
This file has three editable sections:
• Cluster information
• Recovery groups
• Monitoring definitions
Customize each section according to your needs. The following are some
guidelines for editing each section.
Editing Section 1—Cluster Information
Enter cluster-level information as follows in this section of the file:
1. Enter a name for the continental cluster on the line that contains the
CONTINENTAL_CLUSTER_NAME keyword. This can be any name you
choose, but it cannot be changed after the configuration is applied.
To change the name, you must first delete the existing configuration
as described in “Renaming a Continental Cluster” on page 274.
2. Enter the name of the first cluster after the first CLUSTER_NAME
keyword followed by the names of all the nodes within the first
cluster. Use a separate NODE_NAME keyword and HP-UX host name
for each node.
3. Enter the domain name of the cluster’s nodes following the
DOMAIN_NAME keyword.
4. Optionally, enter the name of the monitor package on the first
cluster after the MONITOR_PACKAGE_NAME keyword and the interval
at which monitoring by this package will take place (minutes and/or
seconds) following the MONITOR_INTERVAL keyword.
The monitor interval defines how long it can take for
ContinentalClusters to detect that a cluster is in a certain state. The
default interval is 60 seconds, but the optimal setting depends on
your system’s performance. Setting this interval too low can result in
the monitor’s falsely reporting an Unreachable or Error state. If you
observe this during testing, use a larger value.
It is suggested that you use the name “ccmonpkg” for all
ContinentalClusters monitors. Create this package on each cluster
containing a recovery package. If you do not wish to monitor a
cluster, not containing a recovery package, you must delete or