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How to drain all VMs and Virtual Disks from a CSV on Hyper-V?
Posted in Virtual Machine Manager, Windows Powershell, Windows Server | 3 Comments | 2,444 views | 09/06/2014 01:19

Sometimes, you may need to empty your CSV volume for a maintenance operation or due to a volume corruption.
So you can use this script if you need to drain all virtual machines and virtual disks from a CSV.

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# Target Volume
$TargetVolume = "Volume8"
 
# Get Cluster Nodes
$ClusterNodes = Get-Cluster | Get-ClusterNode
 
foreach ($ClusterNode in $ClusterNodes)
{
	# Clear Variables
	$VMs = $Null;
 
	# Get All Virtual Machines on Target Volume
	$VMs = Get-VM -ComputerName "$ClusterNode" | Where ConfigurationLocation -like "C:\ClusterStorage\$TargetVolume*"
 
	foreach ($VM in $VMs)
	{
		# Get VM Information
		$VMName = $VM.Name
 
		Write-Host " "
		Write-Host "Working on $VMName .."
		Write-Host "Hyper-V Host: $ClusterNode"
 
		# Get Volume Information
		$Volume = ((Get-ClusterSharedVolume | Where {$_.SharedVolumeInfo.FriendlyVolumeName -notlike "*$TargetVolume*"} | Select -ExpandProperty SharedVolumeInfo | Select @{label="Name";expression={(($_.FriendlyVolumeName).Split("\"))[-1]}},@{label="FreeSpace";expression={($_ | Select -Expand Partition).FreeSpace}} | Sort FreeSpace -Descending)[0]).Name
 
		# Move Virtual Machine
		Move-VMStorage -ComputerName "$ClusterNode" -VMName "$VMName" -DestinationStoragePath "C:\ClusterStorage\$Volume\$VMName"
 
		Write-Host "Done."
	}
}

That will move all virtual machines via Storage Live Migration into best available CSV volume.


Comments (3)

NeWay Technologies – Weekly Newsletter #99 – June 12, 2014 | NeWay

June 16th, 2014
20:26:14

[…] How to drain all VMs and Virtual Disks from a CSV on Hyper-V? – […]


NeWay Technologies – Weekly Newsletter #99 – June 13, 2014 | NeWay

June 16th, 2014
20:29:45

[…] How to drain all VMs and Virtual Disks from a CSV on Hyper-V? – […]


Weekly IT Newsletter – June 9-13, 2014 | Just a Lync Guy

June 16th, 2014
21:23:07

[…] How to drain all VMs and Virtual Disks from a CSV on Hyper-V? – […]



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