HP XC System Software Installation Guide Version 2.1

In an ideal environm ent, client disks obtain th eir configuration directly from t he golden client
(head n ode). When th e golden client and client nodes are of the same platform type, disk
type, and disk size, this work s fine. However, in many XC system configu rations, there is a
heterogeneous mix of platform types, disk types, and disk sizes. Allowing client disks to be
separately config urab le from the golden client becom es a requirem ent, and this is a default
behavior of the XC imaging installation when static disk configuration is enabled.
Several predefined static configuration files are shipped as part of the HP X C so ftware
distribution, which m atch the supported platform typ es and enable the creation of
a disk configuration specific for a particular server platform. As an example, for
XC6000 systems, the following static disk configuration files are available in the
/opt/hptc/systemimager/etc directory:
• rx1620.conf
• rx2600.conf
• rx2620.conf
• rx8620.conf
During imaging environment creation, if static disk configuration is enabled, a master
autoinstallation script for each platform type detected in the cluster is automa tically created with
the appropriate static .conf f ile used as input.
Each host of a particular server type is linked to its appropriate master autoinstallation script. If
a client node is the same server type as the g olden client, the default action is to link the client
node to the m aster autoinstallation script cloned from the gold en client.
By changing the contents of the ap propriate .conf file, you can affect the disk configuration
for a particular node or group of nodes by linking th ose n odes to the associated m a ster
autoinstallation script. You can also create your own .conf files and associated master
autoinstallation script.
See the mkautoinstallscript
(8) manpage f or details about creating your own master
autoinstallation script.
H.3.1 Enabling Static Disk Configuration
Before you can use the static disk configuration method to customize the client disk
configuration, it must be enabled because the dynamic disk configuration method is the default
behavior for the XC imaging environment. It is not possible t o use a comb ination of the two
methods simultaneously.
Follow this procedure to enable static disk con fig uratio n:
1. Use the text editor of your choice to open the following file:
/etc/systemimager/systemimager.conf
2. Search for the follo wing variable at the bottom of the file:
DYNAMIC_DISK_PROCESSING
3. Set the value to FALSE:
DYNAMIC_DISK_PROCESSING = FALSE
4. Save y our change to the file.
The static disk configuration method is now p e rsistently enabled. Each time the
cluster_config utility is run, one (or m ore) master autoinstallation scripts are created with
static disk configuration info rma tion fro m the appropriate .conf files.
Customizing Client Node D isks H-5