Define threshold setting information of the target device, and issue an instruction to start monitoring. You can set multiple thresholds setting information on each device.
The threshold setting information includes "Threshold", "Minimum Threshold Monitoring Interval", "Minimum Alarm Tolerance Time", "Alarm Tolerance Level", and "Lower Level". By configuring these five settings in together, you can determine if there are any problems in the performance data.
Threshold
A value to determine whether there is a problem in the performance data.
Minimum Threshold Monitoring Interval
This is the interval for evaluating whether there are any problems in the performance data. Set this to 1440 if you want to evaluate once a day.
Minimum Alarm Tolerance Time
Specifies the total time to determine whether the performance data exceeds the threshold within the "Minimum Threshold Monitoring Interval".
The thinking behind the total time differs depending on the specification of the "Alarm Tolerance Level".
Alarm Tolerance Level
Specifies "Total Time" or "Continuous Time".
When "Total Time" is specified
The total time for the "Minimum Alarm Tolerance Time" is the total value for all the time in which the performance data exceeds the threshold, during the Minimum Threshold Monitoring Interval.
When "Continuous Time" is specified
The total time for the "Minimum Alarm Tolerance Time" is the time for which the performance data continuously exceeds the threshold within the Minimum Threshold Monitoring Interval.
Lower Level
When "Total Time" is specified for the "Alarm Tolerance Level", the Lower Level can be set.
When the performance data is below this value, the "Minimum Alarm Tolerance Time" total time is reset.
Refer to "7.6 Examples of Threshold Monitoring" for examples of threshold monitoring.
Incidentally, since the threshold monitoring unit is started as a daemon of the Management Server along with the performance management unit, the threshold monitoring unit continues threshold monitoring while the Management Server is active, regardless of the access from the Web Console.
Note
For the CM load (CPU usage) rate, the ROE usage rate is not monitored.
The "Minimum Alarm Tolerance Time" can be specified within a range that is above the monitoring interval and below the Minimum Threshold Monitoring Interval. In addition, the "Minimum Threshold Monitoring Interval" can be specified within a range that is above the "Minimum Alarm Tolerance Time" and below 1440 minutes. For this reason, if the range of monitored volumes is set to "All" to change the monitoring interval automatically, the Alarm Tolerance Time and Threshold Monitoring Interval are also changed automatically. However, the Alarm Tolerance Time cannot be shorter than the initially specified "Minimum Alarm Tolerance Time". In the same way, the Threshold Monitoring Interval cannot be shorter than the "Minimum Threshold Monitoring Interval".
When individually setting the threshold for the newly created volume, perform the following procedure:
Record the performance monitoring settings.
Settings for recording
- Monitoring Interval Time
Stop performance monitoring. (If performance monitoring is used).
Refer to "7.2.8 Instruction for Stopping Performance Management" for details.
Start performance monitoring based on the settings recorded in step 1.
Settings
- Range of Monitoring Volume No (Select "All")
- Monitoring Interval Time
Refer to "7.2.2 Instruction for Performance Management" and "7.2.3 Setting Monitoring Intervals" for details.
