HP XC System Software Installation Guide Version 3.1

By changing the contents of the appropriate .conf file, you can affect the disk configuration for a particular
node or group of nodes by linking those nodes to the associated master autoinstallation script. You can
also create your own .conf files and associated master autoinstallation script.
For information about creating your own master autoinstallation script, see mkautoinstallscript(8) .
E.3.1 Enable Static Disk Configuration
Dynamic disk configuration method is the default behavior for the HP XC imaging environment. Before
you can use the static disk configuration method to customize the client disk configuration you must
enable it. You cannot use a combination of the two methods simultaneously.
Follow this procedure to enable static disk configuration:
1. Use the text editor of your choice to open the following file:
/etc/systemimager/systemimager.conf
2. Search for the following variable at the bottom of the file:
DYNAMIC_DISK_PROCESSING
3. Set the value to FALSE:
DYNAMIC_DISK_PROCESSING = FALSE
4. Save your change to the file.
The static disk configuration method is now persistently enabled. Each time the cluster_config utility
is run, one (or more) master autoinstallation scripts are created with static disk configuration information
from the appropriate .conf files.
E.3.2 Customize Client Disk Configuration
Customizing a client's disk configuration involves either editing an existing .conf file or creating a new
one. The format of the .conf file is explained in detail in autoinstallscript.conf(5) .
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.
E.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 HP XC system, the associated .conf file is used as input to a
server-specific master autoinstallation script that is created during initialization of the image replication
environment, which is initiated as part of the cluster_config utility processing.
The following procedure describes how to modify an existing server type .conf file:
1. Begin this procedure as the root user on the head node.
2. Save a copy of the existing .conf file before opening it for editing. The .conf files are located in
the /opt/hptc/systemimager/etc directory.
3. Use the text editor of your choice to make the disk configuration modifications to the .conf file. See
autoinstallscript.conf(5) for formatting guidelines.
4. Save your changes to the file.
5. Run the cluster_config utility to create new master autoinstallation scripts
(/var/lib/systemimager/scripts/name.master.0) and generate an updated version of the
golden image:
# /opt/hptc/config/sbin/cluster_config
6. After the cluster_config utility completes its processing, the client nodes are ready to be installed
from the golden image. Do one of the following:
E.3 Configure Disks Statically 135