Alert Formulas

Alert Formulas are an advanced feature of the alerting facility. This feature allows you to set thresholds on any system counter, including those that do not explicitly appear in the System Counter drop-down menu on the Alert Edit screens. In particular, you can set thresholds on device address message counters, even though these are not explicitly listed in the drop-down menus.

Additionally, you can create complex formulas that reference multiple counters, such as summing up various counters with specific weights. For example, you can set a threshold on the sum of various counters, where each counter is first multiplied by a specific factor or, you can set a threshold on the log10 value of a counter, to compress the counter value into a logarithmic scale.

On the Alerts > Config > Alert Formulas tab, you can create math formulas that work with the BMC Defender Server Alert Counter facility. You first create a formula using special notations to refer to one or more system counters. After you create a formula, it appears in Alert Counters Edit screen with a Formula/ prefix. You can then select the formula like any other system counter.