HP XC System Software Installation Guide Version 2.1

H.3.2 Custom i zing Client Disk Configuration
Customizing a cl ient ’s di sk configuration involves either editing an existing .conf
file or creatin g a new one. The format of the .conf file is explained in detail in the
autoinstallscript.conf
(5) m anpag e .
If you must create a new .conf file, HP recommends that you copy an existing .conf file
with the proper disk architecture (/dev/sd, /dev/hd, /dev/cciss) as a starting point,
and make the necessary modifications to the copied file.
H.3.2.1 Example 1: Changing An Existing .conf File
As described in the previous section, predefined .conf files exist for each supported server
model . If a particular server model is part of an XC system, the associated .conf file is used as
input to a server-specific master autoin stallation script that is cr eated duri ng initiali zation of the
image repli cation environment, which is initiated as part o f the cluster _co nfi g utility processing.
The following procedure describes h ow to modify an existing server type .conf file. Begin
this pro cedure as the ro ot user on the head node:
1. Save a copy of the existin g .conf file before openin g it for editing. The .conf files are
located in the /opt/hptc/systemimager/etc directory.
2. Use the text edito r of your choice to make the disk c o nfiguration modifications to the
.conf file. Refer to the autoinstallscript.conf
(5) manpage for formatting
guidelines.
3. Save y our changes to the file.
4. Run the cluster_config utility to create new master autoinst allat ion scripts
(/var/lib/systemimager/scripts/<name>.master.0) and generate an
updated version of the golden imag e :
# /opt/hptc/config/sbin/cluster_config
5. After the cluster_config utility com pletes its processin g, the clien t nodes are ready
to be installed from the golden image. Do one of the followin g:
• If the client nodes have not been previously installed wi th th e XC System Software,
see Section 4.10 t o continue the initial installation procedure.
• If the client nodes were prev iou sly installed, issue the following sequence of
commands to set the nodes to network boot and reboot the client nodes:
# setnode --resync --all
# stopsys
# startsys
Wait until the stopsys comman d com pletes be fore inv oking th e startsys
command.
H.3.2.2 Example 2: Creating a New .conf File and A ssociated Master Autoinstallation
Script
If necessary, you can create your own master autoinstallation script with static disk configuration
included from a customized .conf file. You can then link a specific group of client nodes to
this master autoinstallation script to customize this group of nodes within the overall XC system.
Begin t his procedure as the root user on the head node:
1. Use an existing .conf file with the appropriate disk type and make a copy of the file:
# cd /opt/hptc/systemimager/etc
# cp rx2620.conf login_node.conf
H-6 Customizing Client Node Disks