In order to ensure the XenServer server host and all virtual machines can be shutdown correctly, users have to configure the account and password of root user for host shutdown. Fill in the Account and Password fields with actual username and password for shutdown action on the Event Action/Settings page.
Configure Startup and Shutdown of Virtual Machines on VMware ESX/ESXi
In order to ensure that all virtual machines and the VMware ESX/ESXi server host can be shut down and restart gracefully:
zSelect the topmost VMware ESX/ESXi server host from the tree hierarchy on the left side. Go to Configuration Æ Virtual Machine Startup/Shutdown menu Æ Properties of the vSphere Client.
zEnable the Allow virtual machines to start and stop automatically with the system option
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