User guide

Add Threshold Threshold Notification
8-13
AlliedView NMS Administration Guide (Setting Up Performance Management)
Assume you want to set the number of pages to be loaded in a printer to depend on the Toner level. Moreover, when the
toner level is 80% of the number of pages to be printed, you wish to be notified. To achieve this, you create a Percentage
Threshold with a value 80. Collect data for two Statistics, Toner level and Number of pages in the printer. Divide the first
by the second to find the percentage. If the resulting value exceeds the Threshold value (80), then you will receive notifi-
cation. The steps are:
1. Data will be collected for first statistic.
2. When compared with Threshold value, if Threshold type is percentage, for the associated statistic (second statistic)
data will be collected.
3. Both will be divided and result multiplied by 100, thus giving a percentage.
The notification that you receive when the collected value exceeds the Threshold value is in the form of a Threshold Event.
An event is an occurrence of some action. Hence, whenever the Threshold value is exceeded, a Threshold event will be gen-
erated, which will be handled by AlliedView NMS Fault module. Refer to the NMS User Guide for viewing events. Also,
every Threshold event is associated with a Severity to denote the criticality of the situation. For example, a severity of Criti-
cal should indicate that immediate attention is needed on data collection.
You can associate multiple thresholds with a single Statistic. Doing so allows you to control every value collected. For exam-
ple, you can say if the collected value is above 10, the severity is minor. If the collected value is above 20, severity is major.
In such a case the following will happen:
1. Until a threshold reaches it's reset value, it will be in that severity state itself. As soon as it reaches the reset value, the
threshold gets reset and waits for the collected data to again exceed its limit.
2. If another threshold exists of lower severity and if the collected data falls in its limits then that threshold will generate the
message.
3. If a threshold exist with higher severity, the higher severity threshold will take precedence and its message will be dis-
played. The threshold with lower severity loses its importance and will not be generated until the threshold with a higher
severity reaches reset state.
8.4.2 Add Threshold
To add a Threshold, access the Configuration Collection view, and then select Edit -> Threshold -> Add Threshold. The fol-
lowing figure appears, showing three tabs, one for each type of threshold. Type long is the default tab. The tabs are for long,
string, and percentage properties. Refer to the following figure.