An alert is a condition or state of interest about a resource that should be brought to an administrator's or operator's attention. Alerts are detected by the Monitor based on metrics that are collected. They are not detected at the database being monitored.

There are predefined alerts for conditions such as low disk space, failed login attempts, and high memory usage. You can change the default threshold values by editing the resource. See Specify alert thresholds.

When an alert condition is met, the alert is listed in the Alert List widget for the specified resource. See Alerts List widget.

By default, alerts appear in the Alert List widgets and they include information about the cause of the problem, and provide advice for resolving the problem. In the Resource List the resource's status changes to reflect the existence and severity of the alert. See Overview dashboard.

You can configure the Monitor to send an email to operators and administrators when an alert occurs. See Send alert emails.