HP XC System Software Installation Guide Version 2.1

When nodes are instructed to PXE boot from their network adapter attached to the
administrative network, the nodes automatically proceed through an installation process that
replicates the golden client and does the following :
• Partitions the local disk. By default, the first disk is used because disks other than the
first disk are not supported due to restrictions in the imag e replication environment for
this release.
• Creates file systems
• Downloads the golden image
• Installs the appropriate boot loader
When the automatic installation process completes, each node reboots and continues its
configuration process, eventually ending with the login prompt.
4.2 Before You Begin
Yo u mu s t know where you stored the XC.lic license key file because you will copy or move
it to the head node.
4.3 Prepare for the Question-and-Answer Session
Be prepared to supply the information listed in Table 4-1 during the discovery process, which
is do cumented in Section 4.6, and the system config ur ation process, which is documented
in Section 4 .8.
Yo u can bypass some questions in the discovery p rocess if you provide the related key w ord
and value on the discover command line.
Table 4-1: Configuration Questions and Answers
Question Description and User Action
Questions asked by the cluster_prep command
Node name prefix During the system configuration discovery process, each node is
automatically assigned a name that consists of a user-defined prefix and
a number based on the node’s topographical location in the system. The
default node prefix is the letter n; a six character maximum is allowed in
the node prefix.
You have the option to change the node naming prefix before the system is
configured. For example, you might want to be able to differentiate easily
between nodes in two different systems, or you may want to customize
your node names according to corporate policy.
Maximum number of
nodes in the system
Enter the maximum number of nodes you expect to have in your system,
taking future expansion into consideration.
For flexibility, you might consider entering the maximum number of nodes
allowed by the interconnect. For instance, the interconnect might allow a
maximum of 128 nodes, but your system contains only 64 nodes. In this
case, enter the number 128 when prompted.
Database administrator ’s
password
Define and s et a password to protect the MySQL database. This password
should be different from t he root password.
Yo u will be prompted for this password any time you log into the database.
See Section C .2 for recommendations on choosing strong passwords.
Questions asked by the discover command
Total number of nodes in
this cluster
Enter the total number of nodes in your system configuration. Make sure
the number you enter includes the head node and all compute nodes.
You can include the node= keyword and value on the discover
command line to bypass this question during the discovery process.
4-2 Configuring and Imaging the System