This image is a screen capture that shows the Configure Alert Rule Parameters page. The Rule Type is Threshold. The Asset Type is Operating System. The Monitoring Attribute is*.busyPercentage. The Monitoring Rule name is Percentage of Disk Used. The Description field has the following text: disk usage, percentage busy. The option to Monitor for alert limits continuously is selected. There are two fields for Generate alert after. The first field has 5 and Minutes is selected in the second field.