HP XC System Software Administration Guide Version 3.1

Table 1-3 HP XC Configuration Files (continued)
Configuration FilesReferenced inComponent
/opt/hptc/config/roles_services.ini
/opt/hptc/config/etc/services/*.ini
Chapter 4 (page 55)Services
/hptc_cluster/slurm/etc/slurm.conf
Chapter 14 (page 157)SLURM
/opt/hptc/syslog-ng/etc/global/*
/opt/hptc/syslog-ng/etc/global/syslog_ng_global_template
/opt/hptc/syslog-ng/etc/regional/*
/opt/hptc/syslog-ng/etc/regional/syslog_ng_regional_template
/opt/hptc/syslog-ng/etc/local/*
Chapter 7 (page 83)Syslog-ng
/opt/hptc/systemimager/etc/*
/etc/systemimager/pxelinux.cfg/*
/etc/systemimager/autoinstallscript.template
/etc/systemimager/rsync_stubs/*
/etc/systemimager/systemimager.conf
/etc/systemimager/imagemanip.conf
/etc/systemimager/imagemanip.perm
/etc/systemimager/updateclient.local.exclude
/etc/systemimager/client.conf
/etc/systemimager/flamethrower.conf
Chapter 10 (page 129)SystemImager
1.5.3 Configuration Files in Imaged Nodes
Client nodes receive their image from the HP XC system's golden master. Unless you either update the
golden master or set an override file, the changes made locally to configuration files on the client nodes
are lost the next time the node is re-imaged. For more information on the golden master and how to
distribute software throughout the HP XC system, see Chapter 10 (page 129).
1.6 Installation and Software Distribution
HP XC System Software is installed during the initial installation (new installation), described in the HP
XC System Software Installation Guide. Periodically, later releases may require you to reinstall the system
software or upgrade it from its most recent version. To determine whether the system software is a new
installation or an upgrade, see “Determining the Installation Type” (page 37).
System software, third-party software, and individual files must be distributed to target nodes in the HP
XC system. The section titled “Software Distribution” (page 38) provides an overview of this topic.
1.6.1 Determining the Installation Type
It may be necessary to determine whether your system software is the result of a new installation or
upgraded from a previous version. Use any of the following methods to do so:
• Run the shownode command to determine the existence of the xc_prev_version parameter.
— The following example indicates that the HP XC system was upgraded from Version V3.0:
# shownode config sysparams | grep prev
xc_prev_version: V3.0
— The absence of output in following example indicates that the HP XC system is a new installation:
# shownode config sysparams | grep prev
• Verify the existence of the /var/log/preupgradesys directory. If this directory exists, the HP XC
system was upgraded from a previous release. Otherwise, the system is a new installation.
1.6 Installation and Software Distribution 37