VMware VCENTER APPLICATION DISCOVERY MANAGER 6.1 - REPOSITORY Specifications download pdf (Page 170)

Chapter 8: Alerts

search result is returned, but only if the search result is returned over a given time

span. In this case, specify the time span in the Sustained Minutes field.

Note: Because alerts are only evaluated when new data enter the system, set the

Sustained Minutes to a period that matches the collection period for that data

type. By default, performance data is collected every 10 minutes, and

configuration data is collected every 12 hours. Check the Evaluate on settings on

the Scope tab to see whether the alert is evaluated on a performance collection

schedule, or a configuration collection schedule.

Attributes

Some alerts are based on the attributes of the search results instead of the

number of search results. This means that the alert must pluck properties from the

search results and evaluate the value of that property.

To base an alert on the attributes of search results:

1. In the Base Alert On grouping of the Criteria tab, select Attribute.

2. Click Find to see the list of attributes available for evaluation.

Note: The list of available attributes is based on the type of object your

search returns.

3. Select the unit of measure for the attribute you want to evaluate. Because

Virtualization Manager allows XPath functions, it cannot automatically

determine the correct unit.

4. Select an aggregation function to perform operations across the search

results. The following options are available:

l Average

l Total

l Count

5. Define the rules used in evaluation in the Triggers On grouping. Select one

of the following options:

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VMware VCENTER APPLICATION DISCOVERY MANAGER 6.1 - REPOSITORY Specifications Page 170