Custom "Host reboot alarm" is not getting triggering when the Hosts are rebooted through vCenter UI/Host GUI/ SSH

Products

• VMware vSphere ESXi 8.0
• VMware vCenter Server 8.0

Issue/Introduction

Custom "Host reboot alarm" is not getting triggering when the Hosts are rebooted through vCenter UI/Host GUI/ SSH 

Environment

vCenter Server 8.x

ESXi 8.x

Cause

Once ESXi host reboot is requested, the event is generated in hostd and the host gets rebooted, the connection between vpxd and vpxa is lost and the host sync responsible to forward the events from the host to the VC does not manage to do so and therefore, VC never receives the reboot event.

Resolution

VMware by Broadcom Engineering team is working on the improvements.

As a Workaround, create the alarm specifying the task event for host reboot as shown below 

• ESXi host reboot/restart task description is generally ends with keyword "reboot"

• Create a Custom Alarm for ESXi host on vCenter server by specifying the keyword as Description ID:

Select ESXi host -> Select Configure -> Select Alarm Definitions -> Select ADD - Create below Arguments

• After configuring the Alarm with Name "ESXi-Reboot-Alarm", below alarm will be triggered in case ESXi host reboot is initiated by any user: