System information

Figure 37. Threshold Definitions
In the above figure you can see how to configure thresholds within the monitor
service. You just have to double-click the mouse button on the monitor display
to which you want to set up a threshold. Then the threshold definition menu will
show up (see Figure 37). You can give this threshold a name and then you have
to specify the following data. You first have to define the duration, which means
the time, for which the exceeding of the threshold continues before sending an
alert. Then specify the resending delay, which is the amount of time the system
waits before resending a duplicate alert, because the threshold is still exceeded.
Finally, you have to specify the threshold values, which you may put in different
categories for the type of alert being issued (error or warning alert) and also if
the real value should be lower or higher than the threshold value before sending
an alert. 3.2.6, “Applications Sending Alerts to the Alert Manager” on page 104
shows details about the different alerts and how to define and route them.
2.1.1.11 Critical File Monitoring
Figure 38. Critical File Monitor Service
The Critical File Monitor is used to monitor specific files and the access to them;
which means that you can define a file within this monitoring function where all
access to this file will be recorded by the Alert Manager. The appropriate action
defined within the Alert Manager for this alert will be issued. For example, you
may define an alert which will then monitor some LAN definition files, which
normally nobody, except the LAN administrator is allowed to access. Now, if in
this example somebody accesses these LAN definition files, a pop-up window
28 Systems Management from an NT Server Point of View