Parameters
Parameters give PATROL the ability to probe, monitor, and respond to any application or computer variable value. Parameters can monitor the rate at which file systems are filling up or the number of processes started that are still executing. They can provide a detailed statement of all system activity through time so that you can clearly identify peaks, troughs, and trends in the performance of system resources.
A parameter contains commands that are stored and used to collect data from a system resource. The data is made available for
Creating graphic formulas
Providing detailed information about the current status of the application
Performing analysis to determine if automatic recovery actions should be started to avoid a possible problem
Parameters function the same way for computers as they do for applications.
Refer to your console documentation or console Online Help for more information about defining and customizing parameters.
recovery actions
Recovery actions are commands defined as part of the parameter and executed by the PATROL Agent when the parameter value falls within a defined alarm range. A parameter can store a list of recovery actions associated with different alarm ranges for the same problem. If a parameter detects an alarm state, the PATROL Agent tries to repair the problem by issuing the first recovery action defined for the parameter.
If the alarm level is still critical the next time the PATROL Agent runs the parameter, the next recovery action on the list is run and so on until no more recovery actions are left.
The PATROL Agent can send a message to the Console to activate a state change action such as a flashing icon, which lets you know that you need to investigate the problem. Refer to Initiating State Change Actions for more information on the types of alerts PATROL can initiate.
You can modify parameter recovery actions or define your own. Refer to the PATROL Console for UNIX User Guide, the PATROL for Microsoft Windows User Guide volumes 1 through 3, and the PATROL Console online help for more information.
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