HP XC System Software Installation Guide Version 3.2.1

Special Considerations for Nagios and LSF
During the system configuration phase, the cluster_config command attempts to create a
nagios and an lsfadmin account for use by Nagios and LSF, respectively.
To use existing nagios and lsfadmin user accounts from a site wide NIS system (or some
other external user authentication system), you must manually create local XC accounts that
mirror the site wide accounts (with matching user identification (UID) and group identification
(GID) values). In that way, the cluster_config command uses these local accounts to properly
configure Nagios and LSF with the right file permissions, access, and so on.
3.7.12 Override Default User and Group Account IDs
This task is optional. Perform this task only if the default user and group IDs are not suitable for
your environment.
Table 3-6 lists the user and group account IDs that are configured by default on an HP XC system
if they are not already in use. If any of the default user and group identifiers conflict with other
accounts or are not suitable for your environment, you can override them by creating the user
accounts manually now (before running the cluster_config utility).
Table 3-6 HP XC Default User and Group Account IDs
GIDGroup NameUIDUser Name
222hpasm222nagios
232qsnet232qsnet
500slurm500slurm
501lsfadmin501lsfadmin
79hpsmh79hpsmh
3.7.13 Customize Client Node Disk Partitioning
This task is optional. Perform this task only if you want to change the default partition layout
on client nodes.
The HP XC client node imaging process requires a single system disk on each client node for the
operating system installation. Client node disk devices are partitioned automatically as part of
the automated client imaging process.
Table 3-7 lists the default disk partition layout on client nodes. Partition sizes are created as a
percentage of available disk space after subtracting the total swap size.
Table 3-7 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 189) for more information).
By default, swap space is calculated as 100% x (total memory).
One swap partition
300 MB
/boot or /boot/efi
60% x (total disk size minus space for swap and /boot partition)/ (root)
40% x (total disk size minus space for swap and /boot partition)/var
If the default client node disk partition layout is satisfactory for your needs, you do not have to
do anything.
84 Configuring and Imaging the System