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The first step in the configuration process is to prepare the
system by running the cluster_prep command. This process
sets up the node naming prefix, the number of nodes in the system, the configuration
and management database administrator's password, the external Ethernet
connection on the head node, starts the MySQL service, and initializes the
configuration and management database. Begin this procedure as the root user
on the head node. Change to the following directory: # cd /opt/hptc/config/sbin |
Start the system preparation process: Command output is similar to the following. Table 3-1 describes each prompt and provides information
to help you with your answers. |
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 want to continue? (yes/no) [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]: your_prefix 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 : your_password
Please re-enter password: your_password
Do you want to configure the external connection on the
head node? [y] Enter
External Ethernet device on the head node [eth1] Enter
IP address []: 192.0.2.6
Netmask []: 255.255.252.0
You have the option to provide an IPv6 address for the external
Ethernet connection.
You can enter an IPv6 address, press the [ ] keys to delete the
value shown, or press the Enter key to accept the value shown.
IPv6 address (optional) []: Enter
Gateway IP address []: 192.0.2.51
You have the option to override the system default MTU value.
You can enter 9000 to enable jumbo frames,
press the [ ] keys to delete the value shown and use the system default,
or press the Enter key to accept the value shown.
MTU value (optional) []: Enter
IP address for DNS name server [ ]: 192.0.2.50
Provide one or more DNS domains to use for search paths or press the
Enter key to accept the default response.
Enter one domain name on a line, and after the last domain name, enter
a period (.) on a line by itself and press the Enter key.
Search path: [ ]southpole.com
. 4
[P]roceed, [R]etry: p 5
Restarting network ... done |
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| 1 | Node prefix naming conventions are described in Table 3-1. The default node
prefix is the letter n. | | 2 | In this example, the maximum number
of nodes supported by the interconnect switch is 16. Enter the maximum number
of nodes allowed by the interconnect switch. If the system is configured with
HP server blades, you are not prompted for the maximum number of nodes. | | 3 | The internal host name of the head node is based on the
default node naming prefix and the maximum number of nodes in the system.
Therefore, as shown in this example, the head node host name is set to n16. | | 4 | Be sure to include a period (.) after the last domain
name. | | 5 | Enter the letter r to change a response. Otherwise,
enter the letter p to continue. |
Restart the X server to accommodate
the head node host name change: Press Ctrl+Alt+Backspace to
restart the X server. Log back in to the system as the root user. Click on the Linux for High Performance
Computing splash screen to close it. Open a terminal window from the Gnome
desktop: From the Applications menu,
select the System Tools menu. Scroll down the list of options, and
select Terminal to open a terminal window.
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