HP XC System Software Administration Guide Version 3.2

The Supermon components consist of the kernel modules to collect the statistics, the
mond and supermond daemons, and the script to load and configure the daemons.
The data collected by Supermon includes system performance sensor and environment
data, such as fan, temperature, and power supply status. This data is collected on a
regular basis.
— The syslog and syslog-ng Services
The syslog service runs on each node in the HP XC system. These daemons capture
log information and send it to an aggregator regional node. Regional nodes are assigned
to each client node.
The syslogng_forward service on each regional node enables the node to act as a
log aggregator for the global node. Log information is gathered, consolidated, and
forwarded to the global node; the global node is not necessarily the head node.
Nagios has a syslog plug-in , check_syslogAlerts, that applies a set of rules against
all the events in the consolidated log file and generates alerts for those events that match
one of the rules. The rules reside in the
/opt/hptc/nagios/etc/syslogAlertRules. You can modify this rules file if you
want to add additional rules.
7.2 Monitoring Strategy
The HP XC system monitoring strategy is built on open source tools that are configured
automatically to provide a seamless integration with the HP XC system. The key open source
components of the monitoring suite are:
• Nagios
• Supermon
• syslog and syslog-ng
The syslog-ng tool provides consolidated logging across the HP XC system. The supermon
tool allows metrics to be gathered efficiently throughout the HP XC system and aggregated into
the Configuration and Management database (CMDB). Nagios provides dynamic health
monitoring and reporting as well as integration of the various monitoring services. Figure 7-1
illustrates the interaction of these tools.
88 Monitoring the System