Email notification not sent after an alarm state returns to normal

Products

• VMware vCenter Server

Issue/Introduction

This article provides information to resolve the issue when Email notification is not sent after an alarm state returns to normal.

Symptoms:

• Email notification are sent when an alarm for virtual machine CPU usage reaches a threshold (green to yellow, green to red), but email notification is not sent when it goes back to normal (red to green, yellow to green).
• An email is not sent when a virtual machine CPU usage alarm returns to normal shortly after the alarm is triggered.

Environment

• VMware vCenter Server 4.0.x
• VMware vCenter Server 6.0.x
• VMware vCenter Server 5.0.x
• VMware vCenter Server 4.1.x
• VMware vCenter Server 5.1.x
• VMware vCenter Server 5.5.x

Resolution

The email notification is not sent if the alarms occur within the trigger frequency.

The default trigger frequency is 5 minutes. To resolve this issue, you can change the trigger frequency setting.