Rule definitions identify the specific attributes of a resource that you want to monitor, the severity of an alert OpenEdge Management generates in response to performance, and the action that occurs when an alert is generated. Rule definitions for system, network, and file resource types are composed of the following elements:
Specific rules you set for each resource type. For example, the rule definition for a disk resource includes setting an alert that triggers when disk activity exceeds a specified percentage.
Depending on the resource type and rule set, the Threshold field allows you to set the threshold limits in terms of units, such as number of polling cycles or percentage.
Alert severity, which is one of four alert levels: Information, Warning, Error, or Severe.
The Throw alert after failed poll(s) and Clear alert after successful poll(s) fields, which allow you to monitor changing resource circumstances over any number of polling cycles rather than set an alert to occur immediately after a single failure of an active rule. These can also automatically clear the alert after a single successful cycle. Monitoring resource successes and failures over a number of polling intervals allows you to reduce noise that would cause erroneous alerts due to normal fluctuation in resource behavior.
The Throw additional alerts field, which lets you choose when the alerts are thrown. The choices are either after a clear or after a specified number of failures.
The On alert perform action and On clear perform action fields, which indicate whether the alert initiates an action. Possible actions include sending an e-mail to a designated individual, logging the alert in a log file, or a combination of several different actions into one compound action.
Specific rules you set for each resource type. For example, the rule definition for a disk resource includes setting an alert that triggers when disk activity exceeds a specified percentage.
