How to know on which XenServer host VMs are running

Load-balancing and High Availability are great XenServer features, however, for various reasons, you might want to check on which host which VM is running, and to have the ability to automate the task.

The following powershell script has been created for the XenServer 6.2, using the following XenServerPSSnapin: XenServerPSSnapIn-6.2.0-1.msi

This script does work the same way with previous versions but the cmdlets names changed (e.g.: Get-XenVM was Get-XenServer:VM...).

# Import the XenServer PSSnapIn

Add-PSSnapIn XenServerPSSnapIn

# Connect to the XenServer pool

Connect-XenServer -Server "IP of the poolmaster" -Username "root" -Password "password" -SetDefaultSession

# Retrieve the information

Get-XenVM | ? {$_.is_a_snapshot -eq $false -and $_.is_a_template -eq $false -and $_.is_control_domain -eq $false -and $_.power_state -eq 'running'} | Select-Object name_label, @{Name="hostname";Expression={(Get-XenHost -ref $_.resident_on).hostname}}

# Disconnect from the XenServer pool

Get-XenSession -Server "IP of the poolmaster" | Disconnect-XenServer