HP XC System Software Installation Guide Version 3.0

Task 6: Run the cluster_config Utility to Configure the System
The next step in the process is to configure the system. The cluster_config utility assigns roles to all
nodes in your system based on the size of the system (and other considerations). A node role is defined by
the services provided by the node. A role is an abstraction that groups one or more services.
You have the option to modify this default configuration. When you are satisfied with the node role
assignments, the configuration procedure builds the system configuration database, installs LSF (either LSF-HPC
with SLURM or standard LSF), installs and configures SLURM (if LSF-HPC with SLURM is chosen), enables
Nagios, starts all services on the head node and other service nodes, and creates the golden image from
which all nodes are replicated.
Follow this procedure to configure the system:
1. Enter the following command to back up the system configuration database to a file in the current
directory:
# managedb backup ./filename
You can save the backup file to a directory of your choice, and you may want to add a date and time
stamp to the file name to easily determine when the backup file was created.
2. Enter the following command to capture command output into a file; this step is optional:
# script your_filename
3. Change to the configuration directory:
# cd /opt/hptc/config/sbin
Caution
Make sure that no other terminal windows or shells are actively open in the /hptc_cluster directory.
If any processes are using the /hptc_cluster directory, the file system mounting that is done by the
cluster_config utility does not properly export the /hptc_cluster directory, which causes a
failure.
4. Begin the cluster configuration process:
# ./cluster_config
5. When the following command-line menu options are displayed, enter the letter h to display a description
of each option; entries are not case sensitive:
Cluster Configuration - XC Cluster version HP XC V3.0 <kit> <date>
[L]ist Nodes, [M]odify Nodes, [A]nalyze, [H]elp, [P]roceed, [Q]uit: h
This utility enables you to modify node role assignments
and define external network connections on nodes other than the head node.
Valid commands are:
L - Lists discovered nodes with current location, assigned roles,
and external network connections
M - Modifies nodes with the Modify Node submenu
A - Analyze current configuration
H - Displays this help message
P - Proceeds to the next cluster configuration step
Q - Quits this utility leaving the cluster unmodified
[L]ist Nodes, [M]odify Nodes, [C]heck, [H]elp, [P]roceed, [Q]uit:
6. HP recommends that you enter the letter l to list the default configuration; then enter the letter b or the
letter a to view an abbreviated or full version of the output:
[L]ist Nodes, [M]odify Nodes, [A]nalyze, [H]elp, [P]roceed, [Q]uit: l
Output Type - a[B]breviated, [A]ll, [C]ancel:
• The a[B]breviated output looks similar to the following. Nodes with the same role assignments
are condensed into one line item.
Task 6: Run the cluster_config Utility to Configure the System 51