Alarm Policies

To access this page, click on the icon available in the Admin tab. Then, select the Alarm Policies option in the Alerts tile. The eG Enterprise system includes four predefined alarm policies namely standard, immediate, shortterm, and longterm that are used by the system to determine when to generate alarms. For instance there might be an instantaneous spike in the cpu utilization of a system. While an instantaneous spike may not be a problem, a set of periodic spikes or a persistent increase in the measurement may indicate a problem. To differentiate between these different scenarios, the eG Enterprise system uses two parameters Window size and Number of crossings. While Window size reflects the number of measurements in the past that are used to determine the current state of a measure, the number of crossings indicates the minimum number of measurements in the window which if abnormal change the state to bad.

This page shows the default alarm policies supported by eG Enterprise. By default, these policies will be arranged in the Ascending order of their window sizes. You can change the sort order to Descending, by picking that option from the Sort order drop-down list. You can modify any of the default policies by clicking on the Modify () icon corresponding to that policy, but you cannot delete the default policies.

New policies can be added using the Add New Policy button. Once you define your own policies, then those will also be listed in this page under the USER DEFINED ALARM POLICY section. Unlike default policies, a user-defined policy can be modified and/or deleted. Deleting an existing policy is possible using the Delete icon.

Once a user-defined policy is associated with a measure, then, a Show Associates button will additionally appear against that policy in the USER DEFINED ALARM POLICY section. Clicking on this button will reveal a page using which you can quickly figure out which measure(s) are using the corresponding policy. This information is typically useful when attempting to determine which measures will be impacted when modifying an alarm policy.

If there are too many alarm policies listed in this page, you can search for a particular policy to modify/delete using the Search option. In the Search text box, specify the whole/part of the alarm policy name to search for. Then, click on the right-arrow button next to the text box. All alarm policies with names that embed the specified search string will then appear.