Alert grouping types

Alerts are grouped into various types to streamline problem identification and management. An alert can belong to only one alert group at a time.

Watch this brief video to learn about alert grouping and how it organizes alerts into clusters based on specific criteria.

You can view all alert groups by navigating to Event Management > All Alerts, where the icon in the Group column denotes the alert group type. Alerts not associated with any group will not have an entry in the Group column. Double-click the Group column for an alert group to open the Grouped Alerts dialog box, where you can display all alerts in the group and manually add or remove alerts.

Note:

The filter that defines alert groups must not be on fields that do not appear in the [em_alert_history] table because impact calculation is not a calculated property. This situation occurs because fields like Event Count, Priority, and Priority Group are not copied to the [em_alert_history] table for impact calculation.

Table 1. Alert grouping types

Type	Icon	Description	Creation method	Additional information
Log Analytics	L	Log Analytics groups are formed when the system identifies multiple related Log Analytics alerts, grouping them based on their significant connections.	Created as part of log analytics event processing.	Kinds of Health Log Analytics alerts
Rule-based	R	Rule-based groups consist of related alerts that are organized based on compliance with alert correlation rules, which determine how alerts are grouped according to their relationships.	Created via business rule (Calculate correlation rule) on em_alert table when alert is created or updated.	Create an alert correlation rule
Automated	A	Automated groups are formed by alert aggregation and include a virtual alert as the primary alert of the group. An Aggregated automated group is created when two or more alerts share the same CI type and metric name.	Created via scheduled job.	Automated alert grouping
CMDB-based	C	CMDB-based groups are formed based on CI relationships in the CMDB, specifically for CIs that are not included in rule-based or automated groups.	Created via scheduled job.	CMDB based alert grouping
Text-based	T	Text-based groups are formed by grouping alerts based on similar text from frequently used words in following fields. Description Metric Name CI Class	Created via scheduled job.	N/A
Tag cluster	Tag	Tag cluster groups are formed by grouping alerts according to user-defined tag-based alert clustering definitions.	Created via scheduled job.	Tag cluster alert grouping
Manual	M	Alerts grouped manually by users to organize related issues.	Created manually by the user.	Create alert group manually

For information on scheduled jobs and parameters, refer to Scheduled jobs and parameters for alert grouping. For detailed information on configuring alert correlation logic order, see Configure alert correlation logic order.