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The term "threshold" refers to the maximum number of times a message can appear within a specified number of minutes. The threshold parameters for each message can be adapted to site requirements.
Following are some instances where you should specify a threshold.
Example 1
A rule "shouts" to a TSO user whenever a specific message appears on the console. For some reason, this message is issued many times and the TSO user is notified repeatedly. The messages are the result of a single problem and the information they provide repeatedly is therefore irrelevant.
In this case, it is recommended to stop the automatic response to the repetitive console messages after a threshold is reached.
Example 2
A rule triggers a job that copies and cleans SYS1.LOGREC whenever a specific message appears on the console. For some reason, SYS1.LOGREC fills up very quickly and the SYS1.LOGREC dataset is dumped repeatedly.
In this case, it is recommended to stop dumping the dataset and send a message to the system administrator after a threshold is reached. The person responsible can then handle any hardware problem or, if necessary, resize the SYS1.LOGREC dataset.
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