Red Hat NETWORK SATELLITE 5.1.0 - CHANNEL MANAGEMENT, Справочное руководство

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8. Use the remaining fields to establish the probe's alert thresholds, if applicable. These
CRITICAL and WARNING values determine at what point the probe has changed state.
Refer to Section 5.2, “Establishing Thresholds” for best practices regarding these thresholds.
9. When finished, click Create Probe. Remember, you must commit your Monitoring
configuration change on the Scout Config Push page for this to take effect.
To delete a probe, navigate to its Current State page (by clicking the name of the probe from
the System Details # Probes tab), and click delete probe. Finally, confirm the deletion.
5.2. Establishing Thresholds
Many of the probes offered by RHN contain alert thresholds that, when crossed, indicate a
change in state for the probe. For instance, the Linux::CPU Usage probe allows you to set
CRITICAL and WARNING thresholds for the percent of CPU used. If the monitored system
reports 75 percent of its CPU used, and the WARNING threshold is set to 70 percent, the probe
will go into a WARNING state. Some probes offer a multitude of such thresholds.
In order to get the most out of your Monitoring entitlement and avoid false notifications, Red Hat
recommends running your probes without notifications for a time to establish baseline
performance for each of your systems. Although the default values provided for probes may suit
you, every organization has a different environment that may require altering thresholds.
5.3. Monitoring the RHN Server
In addition to monitoring all of your client systems, you may also use RHN to monitor your RHN
Server, whether that be an RHN Satellite Server a RHN Proxy Server. To monitor your RHN
Server, find a system monitored by the server, and go to that system's System Details #
Probes tab.
Click create new probe and select the
Satellite
Probe Command Group. Next, complete the
remaining fields as you would for any other probe. Refer to Section 5.1, “Managing Probes” for
instructions.
Although the RHN Server appears to be monitored by the client system, the probe is actually
run from the server on itself. Thresholds and notifications work normally.
Note
Any probes that require Red Hat Network Monitoring Daemon connections
cannot be used against a RHN Satellite Server or RHN Proxy Server on which
Monitoring software is running. This includes most probes in the Linux command
group as well as the Log Agent probes and the Remote Program probes. Use the
Satellite command group probes to monitor RHN Satellite Servers and RHN
Proxy Servers. In the case of Proxy scouts, the probes are listed under the
system for which they are reporting data.
Chapter 7. Monitoring
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