Displaying alert seasonality

Alerts can occur within a seasonal time window. For example, an alert might tend to occur on a certain day of the week or a certain time of the day. Alerts that tend to occur within a seasonal time window are highlighted in the Alert Viewer using a circle Circle or a circle with a check mark Circle with a check mark in the alert's Seasonal column. Click these icons to find out when the alert tends to occur.

Examples of seasonal time windows include the following times:

Hour of the day

Between 12:00 and 1:00 pm

Day of the week

On Mondays

Day of the month

On the 3rd of the month

Day of the week at a specific hour

On Mondays, between 12:00 and 1:00 pm

Day of the month at a specific hour

On the 3rd of the month, between 12:00 and 1:00 pm

Procedure

  1. Identify alerts that are seasonal.

    • Alerts that are not part of an alert group, that have associated seasonality, have a circle Circle visible in the Seasonal column.

    • Alerts that are part of an alert group, that have associated seasonality, have a circle with a check mark Circle with a check mark in the Seasonal column, but you must first open the alert group in order to see the alert. Open the alert group by clicking the Down chevron icon Downward-pointing chevron icon in the parent alert group row.

  2. Click the circle or dot to display more information on the alert of interest.

    A side panel that contains multiple information sections opens in the table. The Seasonality section is open and displays one or more seasonal time windows for the selected alert.

  3. Click the Down chevron icon Downward-pointing chevron icon next to each seasonal time window to see a visual representation of the time window.

    For example, if the underlying algorithm has identified that the selected alert tends to occur between 12 noon and 1:00 pm, then this alert will have a seasonal time window as follows, and this will be displayed using a clock-based representation:

    Between 12:00 and 1:00 pm

  4. Click the More information link at the end of the side panel's Seasonality section to launch out to the Seasonality details page.

Seasonality details
Seasonality details

This page provides a calendar view of all of the historical alerts that contributed to the selected seasonal alert. One or more seasonal time windows are listed in the top left pane. Select a seasonal time window to filter the view to show just historical alerts that contributed to that time window. The Seasonality details page contains the following sections:

  • Toolbar

    • Search: searches alert data in all event group instances that are shown on this page.

    • Filter: filters the alerts that are shown by severity level:

      • Critical Critical

      • Major Major

      • Minor Minor

      • Warning Warning

      • Information Informational

      • Indeterminate Indeterminate

  • Seasonal time windows

    One or more seasonal time windows are listed together with a number indicating how many historical alerts occurred within this time window during the historical period analyzed. The color of the square is the color code for the respective seasonal time window. Select a seasonal time window to filter the Calendar and the Historical alert table to show just historical alerts that contributed to that time window.

  • Calendar

    A calendar of the historical period analyzed (the last three months or more) showing days on which the historical alerts of interest occurred, and colored with the color code for the respective time window. Click one or more days in the calendar view to filter the table of alerts details to the selected date.

  • Historical event table

    Table listing the historical alerts during the historical period analyzed.