HP XC System Software Administration Guide Version 3.1

8.1.1 Nagios Components
The components that comprise Nagios are as follows:
• Nagios engine
• Nagios Web interface
• Nagiostats tool
Nagios
These plug-ins are not configured for any particular system. Although they are all provided,
not all these plug-ins are used on HP XC systems.
Standard Plug-Ins
These packages include the following:
• Nagios Remote Plug-In Executor (NRPE), which executes commands on nodes remotely
• Nagios Service Check Acceptor (NSCA), which receive Nagios status data from distributed
monitors
• NAN, which queues and batches Nagios alerts to reduce email messages.
• Nagios Console Monitor (NSC), a text display monitor, based on the curses library
package, for viewing Nagios data
Additional Packages
8.1.2 Nagios Hosts
A Nagios host refers to any entity with an IP address, not just nodes. An interconnect switch and an HP
StorageWorks Scalable File Share (SFS) server are considered Nagios hosts.
8.1.3 Nagios Plug-Ins
The following is a list of Nagios plug-ins provided with the HP XC System Software:
• Apache HTTPS server reports
• Configuration information
• Environment status report
• Load average status report
• LSF failover monitor
• Nagios Host monitor
• Nagios monitor
• Node information report
• Interconnect ping status report
• ProCurve switch status (cluster necs1-1)
• Resource monitor
• Resource status report
• Root key synchronization reports
• SFS appliance status
• SLURM monitor
• SLURM status report
• Supermon metrics monitor
• Switch status reports
• Syslog alert monitor
• Syslog alerts status
• System event log
• System free space status report
For more information on the services monitored by Nagios and the type of function monitored for that
service, see Table 8-2.
8.1.4 Nagios Web Interface
Nagios provides a Web interface capable of displaying current system and networking information in a
browser window. See “Using the Nagios Web Interface” (page 103) for more information.
102 Monitoring the System with Nagios