HP XC System Software Installation Guide Version 2.1

3. Enter the follo wing command to configure the administrative network interface on
the head node, set the password for the MySQL database administrator, configure the
interconnect, start the M y SQL server, and ini tial ize the system configur a tio n database:
# ./cluster_prep
Command output looks sim ilar to t he following:
The cluster_prep utility prepares the head node for the
automated discovery process. This utility is run during the initial
cluster configuration or any time your cluster is reconfigured.
If you reconfigure your cluster, you must run the discover
command after running the cluster_prep utility.
Do you wish to continue? [y/n] y
Enter the prefix to assign to internal node names. The prefix
can contain up to 6 alphanumeric characters, and the last
character must be alphabetic. The default node prefix
is the letter "n":
Enter node naming prefix [n]:
Enter 1
Enter the Maximum Number of nodes in this cluster: 16 2
Setting system name to n16 ... done 3
Please enter the Database Admin Password : password
Please re-enter password: password
1 All nodes in the system use the same prefix a n d node naming conventio ns. The node
prefix can contain up to 6 alphanumeric characters. The last character in the prefix
must be alphabetic. By default, nh is assigned as the head node alias, regardless of
the node prefix.
Assuming th e n ode prefix is n and the m aximum number of nodes is 128, th e head
node is named n128.
All other nodes that are connected directly to the root switches are named with
the node prefix and are numb ered in descending order from the highest numbered
node. All other nodes that are connected to branch switches are named with the
node prefix and num bered in ascending order, starting at 1 on the first p ort of the
first branch switch.
2 In this example, the maximum number of nodes supported by the interconnect switch
is 16. Enter the maximum number of n odes allowed by your system’s interconnect.
3 The internal host name of the head node is based on the default node naming prefix
and the m aximum n um ber of nodes in the system. Therefore, as shown in this
example, the host name is set to n16.
4. Restart the X server to accommodate the head node host name change:
a. Press Ctrl/Alt/Backspace to restart the X server.
b. Log b ack in to the system as the root user.
c. Open a terminal window:
i. Click the footprint icon on the toolbar to open the Gnome main menu.
ii. From the System Tools menu, scroll down the list of options, and choose
Terminal to open a terminal window.
d. Go back to the configuration directory:
# cd /opt/hptc/config/sbin
4-6 Configuring and Imaging the System