HP XC System Software Installation Guide Version 3.1

Table 3-6 Default Client Node Partition Layout
SizeFile System Name
Swap space is calculated based on the amount of memory on the node, and it is
governed by minimum and maximum values you set (see Appendix E (page 131) for
more information).
By default, swap space is calculated as 100% x (total memory).
One swap partition
1% x (total disk size minus swap space)
/boot or /boot/efi
60% x (total disk size minus swap space)
/ (root)
39% x (total disk size minus swap space)
/var
If the default client node disk partition layout is satisfactory for your needs, you do not have to do anything.
However, if the system requires a different, customized partitioning layout on client disk devices, see
Appendix E (page 131) for instructions.
3.7.13 Create the HP Modular Cooling System Configuration File
This task is optional. Perform this task only if the hardware configuration includes a water-based HP
Modular Cooling System (MCS) device.
Follow this procedure to create and populate an MCS configuration file called mcs.ini. The discover
command uses the information in this file to discover the MCS devices.
1. Begin this procedure as the root user on the head node.
2. Change to the following directory:
# cd /opt/hptc/mcs/config
3. Copy the MCS template file into a file called mcs.ini:
# cp mcs_template.ini mcs.ini
4. Use the text editor of your choice to populate the mcs.ini file with site-specific MCS device
information. A sample of the mcs.ini file is shown in Example 3-1 (page 65).
The following list describes the parameters in the mcs.ini file:
mcs_units Specifies each MCS device name separated by a comma.
mcs_server_units Specifies the name of each MCS device that controls one or more service
nodes, separated by a comma
name Specifies the name of the MCS device.
ipaddr Specifies the IP address of the MCS device.
location Specifies the cabinet that contains the nodes that are under control of the
MCS device
nodes Defines the range of nodes under control of the MCS device. The node range
is specified in the format node_prefix[n-n].
status Lists the status of the MCS device. Valid values are offline or online.
Nagios monitors only the MCS devices that are in the online state. For
more information about MCS device status, see manage_mcs_status(8).
Before you change the device status to online, make sure the MCS devices
are online and operating correctly.
5. Save your changes and exit the file.
64 Configuring and Imaging the System