Red Hat NETWORK SATELLITE 5.1.0 - CHANNEL MANAGEMENT, Reference Manual

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4.6. General::Uptime (SNMP)
The General::Uptime (SNMP) probe records the time since the device was last started. It uses
the SNMP object identifier (OID) to obtain this value. The only error status it will return is
UNKNOWN.
Requirements — SNMP must be running on the monitored system and access to the OID must
be enabled to perform this probe.
This probe's transport protocol is User Datagram Protocol (UDP).
Field Value
SNMP Community String* public
SNMP Port* 161
SNMP Version* 2
Timeout* 15
Table C.14. General::Uptime (SNMP) settings
5. Linux
The probes in this section monitor essential aspects of your Linux systems, from CPU usage to
virtual memory. Apply them to mission-critical systems to obtain warnings prior to failure.
Unlike other probe groups, which may or may not require the Red Hat Network Monitoring
Daemon, every Linux probe requires that the
rhnmd
daemon be running on the monitored
system.
5.1. Linux::CPU Usage
The Linux::CPU Usage probe monitors the CPU utilization on a system and collects the
following metric:
• CPU Percent Used — The five-second average of the percent of CPU usage at probe
execution.
Requirements — The Red Hat Network Monitoring Daemon (
rhnmd
) must be running on the
monitored system to run this probe.
Field Value
Timeout* 15
Critical Maximum CPU Percent Used
Warning Maximum CPU Percent Used
Appendix C. Probes
234