HP XC System Software Administration Guide Version 3.0

• top
• uptime
• vmstat
• w
You can use these administrative commands from any node to determine the health of an individual node.
Information for these commands is available from their corresponding manpages.
The HP XC system also includes the Nagios Web-based utility for system monitoring and such commands
as the shownode command. These are discussed in this chapter.
Commands for Monitoring Node Status
The shownode metrics command, which can be issued from any node in the HP XC system, provides
the ability to monitor the status of all the nodes in the system.
The following arguments to the shownode metrics command monitor the node status:
• shownode metrics cpus
• shownode metrics cputotals
• shownode metrics load
• shownode metrics mem
• shownode metrics paging
• shownode metrics sensors
• shownode metrics swap
For more information, see “Displaying System Statistics” (page 72) and shownode(8).
Nagios
The HP XC System Software uses the Nagios Open Source monitoring application to gather and display
system statistics, such as processor load and disk usage. Nagios is a system and network health monitoring
application. It watches hosts and services that you specify and alerts you when problems occur or are
resolved. On the HP XC system, Nagios is integrated with Supermon for monitoring capabilities.
The HP XC system automatically configures the Nagios environment based on the configuration of the system.
The autoconfiguration is based on the information in the HP XC configuration and management database
(cmdb). The configuration is updated as a result of changes to the HP XC database. Autoconfiguration
includes setting up Nagios configuration templates mapped to the configuration for both hosts and services.
Nagios reports information collected using the Supermon infrastructure. The data collected by Supermon
includes both system performance metrics and environment data, such as fan, temperature, and power supply
status. This data is collected on a regular basis by the Supermon facility.
Table 6-1. lists the services monitored by Nagios and the type of function monitored for that service.
62 Monitoring the System