[Dry technology] is set to take effect zabbix trigger

1. To which a trigger on zabbix existing monitoring item, for example (here I use the term in which to monitor the CPU usage of a host as a demo example). As shown
   
   in FIG. 1
   from the figure can be seen that the total CPU utilization stage.

2. Since the original trigger the expression above does not meet the requirements of my experiment, so I decided to add one. As shown in FIG 2.
   
   FIG 2

3. We can now see the emergence of alarms. Figure 3.
   
   Figure 3
   in the box we can see the alarm time.

4. Now we set the time on the trigger enabled, click on "Expression Builder" in Figure 4, Figure 5.
   
   Figure 4
   
   Figure 5
   results options in the time of writing format is "hhmmss" (when minutes and seconds) , meaning greater than 3:00.

5. Two expressions result, as shown in FIG 6.
   
   FIG 6
   binding means two expressions is: not less than 3:00 (day, 24-hour, the literal value is greater than or equal to 3) time, the CPU utilization rate is greater than 1 % trigger an alarm.

6. Non-execution time, the default recovery, no alarm is generated. 7. As shown
   
   in FIG. 7

7. Or may add a time period, as shown in FIG 8, FIG 9
   
   8
   
   9
   can now see the re-emergence of the alarm, the set period of time.