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Cozumpark Bilisim Portali
Posted in Windows Powershell, Windows Server | 2 Comments | 4,908 views | 20/07/2014 23:31

You may get following issues due to WMI problem:

403042

Reboot is only way to fix it but at least you can prevent future issues:

1. Go to Start -> Run and type wbemtest.exe
2. Click Connect
3. In the namespace text box type “root” (without quotes).
4. Click Connect
5. Click Enum Instances
6. In the Class Info dialog box enter Superclass Name as “__ProviderHostQuotaConfiguration” (without quotes) and press OK.
(Note: the Superclass name includes a double underscore at the front.)
7. In the Query Result window, double-click “__ProviderHostQuotaConfiguration=@”
8. In the Object Editor window, double-click HandlesPerHost
9. In the Value dialog, type in 8192
10. Click Save Property
11. Click Save Object
12. Under properties find the property “MemoryPerHost” or any other ones you need to modify and double click it
13. Change the value from 512 MB which is 536870912 to 1GB which is 1073741824
14. Click Save Property
15. Click Save Object
16. Close Wbemtest
17. Restart the computer

Thanks to Shaon Shan for sharing this solution.


Posted in Virtual Machine Manager, Windows Powershell, Windows Server | 1 Comment | 3,341 views | 20/07/2014 09:31

Lets assume that you have a 3 years old storage and you are using it to place your virtual machines on Hyper-V Cluster. Then you bought a new storage box, you created LUNs on it and assign them as a CSV volumes on your existing Hyper-V Cluster. So next achievement would be migrating your virtual machines from old storage to new one.

That migration could be a headache if you have many VMs and many storage LUNs. So in that case, you can use following script to migrate Virtual Machines per CSV Volume. Just you need to specify which CSV volume you would like to drain. So let’s assume that volume is Volume1. I will specify that volume like following:

Start-CSVMigration -TargetVolume "Volume1"

Now you need to specify other CSV Luns as well to filter them. Otherwise, you can migrate a VM to old storage again. So we are filtering them like following:

Start-CSVMigration -TargetVolume "Volume1" -FilteredVolumes "Volume2","Volume3","Volume4"

So how does it work?

We are creating an array called FilteredVolumes then adding our old storage luns to this array. You will see that I’m also adding $TargetVolume to same array. Because there is a chance to try to migrate a VM to same volume. So that will prevent that kind of issues.

So how can I get destination volume?

$FullQuery = '((Get-ClusterSharedVolume |' + $Query + ' Select -ExpandProperty SharedVolumeInfo | Select @{label="Name";expression={(($_.FriendlyVolumeName).Split("\"))[-1]}},@{label="FreeSpace";expression={($_ | Select -Expand Partition).FreeSpace}} | Sort FreeSpace -Descending)[0]).Name'

As you can notice from the code below, i’m getting all CSV volumes, filtering old storage volumes, sorting new storage CSVs by their free space and selecting the storage which has biggest available disk space.

So I’ll place VM into that volume:

Move-VMStorage -ComputerName "$ClusterNode" -VMName "$VMName" -DestinationStoragePath "C:\ClusterStorage\$Volume\$VMName"

You can also allow VMs with passthrough disks and vHBA. You just need to add -AllowPT switch.

Start-CSVMigration -TargetVolume "Volume1" -FilteredVolumes "Volume2","Volume3","Volume4" -AllowPT

This is what I use to filter VMs with vHBA:

Where {($_ | Select -expand FibreChannelHostBusAdapters) -eq $Null}

If you get the idea, now I can share full script:

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function Start-CSVMigration {
 
<#
    .SYNOPSIS
 
        Function to migrate all virtual machines placed on a CSV volume by using Hyper-V Live Storage Migration.
 
    .DESCRIPTION
 
        Lets assume that you have a 3 years old storage and you are using it to place your virtual machines on Hyper-V Cluster.
		Then you bought a new storage box, you created LUNs on it and assign them as a CSV volumes on your existing Hyper-V Cluster.
		So next achievement would be migrating your virtual machines from old storage to new one.
		This script moves virtual machines into different CSV volumes by using Hyper-V Live Storage Migration.
 
    .PARAMETER  WhatIf
 
        Display what would happen if you would run the function with given parameters.
 
    .PARAMETER  Confirm
 
        Prompts for confirmation for each operation. Allow user to specify Yes/No to all option to stop prompting.
 
    .EXAMPLE
 
        Start-CSVMigration -TargetVolume "Volume1"
 
    .EXAMPLE
 
        Start-CSVMigration -TargetVolume "Volume1" -FilteredVolumes "Volume2","Volume3","Volume4"
 
    .EXAMPLE
 
        Start-CSVMigration -TargetVolume "Volume1" -FilteredVolumes "Volume2","Volume3","Volume4" -AllowPT
 
    .INPUTS
 
        None
 
    .OUTPUTS
 
        None
 
    .NOTES
 
        Author: Yusuf Ozturk
        Website: http://www.yusufozturk.info
        Email: ysfozy@gmail.com
        Date created: 05-July-2014
        Last modified: 20-July-2014
        Version: 1.4
 
    .LINK
 
        http://www.yusufozturk.info
        http://twitter.com/yusufozturk
 
#>
 
[CmdletBinding(SupportsShouldProcess = $true)]
param (
 
	# Target Volume
	[Parameter(
		Mandatory = $true,
		HelpMessage = 'The CSV Volume name that you want to drain, like: Volume1')]
	$TargetVolume,
 
	# Filtered Volumes
	[Parameter(
		Mandatory = $false,
		HelpMessage = 'The CSV Volume names that you want to filter, like: Volume2')]
	[array]$FilteredVolumes,
 
	# Allow Passthrough Disks
	[Parameter(
		Mandatory = $false,
		HelpMessage = 'Allow Passthrough Disks')]
	[switch]$AllowPT = $false,
 
	# Debug Mode
	[Parameter(
		Mandatory = $false,
		HelpMessage = 'Debug Mode')]
	[switch]$DebugMode = $false
)
	# Enable Debug Mode
	if ($DebugMode)
	{
		$DebugPreference = "Continue"
	}
	else
	{
		$ErrorActionPreference = "silentlycontinue"
	}
 
	# Filtered Volumes
	$FilteredVolumes += $TargetVolume
 
	# Clear Query
	$Query = $Null;
 
	# Create Query
	foreach ($FilteredVolume in $FilteredVolumes)
	{
		$Query = $Query + ' Where {$_.SharedVolumeInfo.FriendlyVolumeName -notlike "*' + $FilteredVolume + '"} |'
	}
 
	# Full Query
	$FullQuery = '((Get-ClusterSharedVolume |' + $Query + ' Select -ExpandProperty SharedVolumeInfo | Select @{label="Name";expression={(($_.FriendlyVolumeName).Split("\"))[-1]}},@{label="FreeSpace";expression={($_ | Select -Expand Partition).FreeSpace}} | Sort FreeSpace -Descending)[0]).Name'
 
	# Get Cluster Nodes
	$ClusterNodes = Get-Cluster | Get-ClusterNode
 
	foreach ($ClusterNode in $ClusterNodes)
	{
		# Clear Variables
		$VMs = $Null;
 
		# Create VM Array
		$VMArray = @()
 
		if ($AllowPT)
		{
			# 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
 
				# Add VM to VMArray
				$VMArray += $VMName
			}
		}
		else
		{
			# Get All Virtual Machines on Target Volume
			$VMs = Get-VM -ComputerName "$ClusterNode" | Where ConfigurationLocation -like "C:\ClusterStorage\$TargetVolume\*" | Where {($_ | Select -expand FibreChannelHostBusAdapters) -eq $Null}
 
			foreach ($VM in $VMs)
			{
				# Get VM Information
				$VMName = $VM.Name
 
				if ($VM.HardDrives.Path -like "Disk*")
				{
					# Skipping VM
				}
				else
				{
					# Add VM to VMArray
					$VMArray += $VMName
				}
			}
		}
 
		foreach ($VMName in $VMArray)
		{ 
			Write-Host " "
			Write-Host "Working on $VMName .."
			Write-Host "Hyper-V Host: $ClusterNode"
 
			# Get Volume Information
			$Volume = Invoke-Expression $FullQuery
 
			# Move Virtual Machine
			Move-VMStorage -ComputerName "$ClusterNode" -VMName "$VMName" -DestinationStoragePath "C:\ClusterStorage\$Volume\$VMName"
 
			Write-Host "Done."
		}
	}
}

It’s enough to run this script on one of the Cluster Node, so that will start migrating virtual machines. That will also give an output, so you will be able to see which VM you are migrating.

This is also an example how you can automate storage migrations:

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$Volumes = @()
$Volumes += "Volume1"
$Volumes += "Volume2"
$Volumes += "Volume3"
$Volumes += "Volume4"
$Volumes += "Volume5"
 
foreach ($Volume in $Volumes)
{
	Start-CSVMigration -TargetVolume "$Volume" -FilteredVolumes "Volume1","Volume2","Volume3","Volume4","Volume5","Volume6","Volume7","Volume8","Volume9","Volume10","Volume11","Volume12","Volume13","Volume14","Volume15"
}

I hope you will find it useful. See you!


Posted in Windows Powershell, Windows Server | 1 Comment | 4,880 views | 20/07/2014 09:06

This function works like VMware Storage DRS to do Storage Optimization on CSV volumes.
It moves virtual machines into different CSVs to optimize storage usage.

Updated version for Windows Server 2016 by Bas Roovers:
https://gist.github.com/basroovers/2c1cdf9298c2a26ad633e008d95abf46

So how does it work?

First we are getting best available CSV with following line:

$BestVolume = ((Get-ClusterSharedVolume | Select -ExpandProperty SharedVolumeInfo | Select @{label="Name";expression={(($_.FriendlyVolumeName).Split("\"))[-1]}},@{label="FreeSpace";expression={($_ | Select -Expand Partition).FreeSpace}} | Sort FreeSpace -Descending)[0])

Then we are getting worst available CSV with following line:

$WorstVolume = ((Get-ClusterSharedVolume | Select -ExpandProperty SharedVolumeInfo | Select @{label="Name";expression={(($_.FriendlyVolumeName).Split("\"))[-1]}},@{label="FreeSpace";expression={($_ | Select -Expand Partition).FreeSpace}} | Sort FreeSpace -Descending)[-1])

After that script calculates space gap between those two volumes:

[int64]$SpaceGap = [math]::round((([int64]$BestVolumeFreeSpace - [int64]$WorstVolumeFreeSpace) / 1GB), 0)

If space gap is bigger than 100 GB, so so now we know that, we should migrate virtual machines from $WorstVolume to $BestVolume. If space gap is less than 100 GB, we can assume that volumes are already optimized.

Then we are calculating virtual machines disk space usages on the $WorstVolume:

$VMReports += Get-VM -ComputerName $ClusterNode | Where ConfigurationLocation -like "C:\ClusterStorage\$WorstVolumeName\*" | Measure-VM

So we should migrate a VM which has less disk space then average space gap between $BestVolume and $WorstVolume. Otherwise, a VM with a large disk space can fill all available space in $BestVolume.

$BestVM = ($VMReports | Where TotalDisk -lt $SpaceGapAverageMb | Sort TotalDisk -Descending)[0]

Finally we are migrating VM with following line:

Move-VMStorage -ComputerName "$BestVMHost" -VMName "$BestVMName" -DestinationStoragePath "C:\ClusterStorage\$BestVolumeName\$BestVMName"

You can also allow VMs with passthrough disks and vHBA. You just need to add -AllowPT switch.

Start-VMStorageOptimization -AllowPT

This is what I use to filter VMs with passthrough disks and vHBA:

Where {(($_ | Select -Expand HardDrives).Path -notlike "Disk*") -and (($_ | Select -expand FibreChannelHostBusAdapters) -eq $Null)}

If you get the idea, now I can share full script:

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function Start-VMStorageOptimization {
 
&lt;#
    .SYNOPSIS
 
        Function to optimize storage usage on CSV volumes by using Hyper-V Live Storage Migration.
 
    .DESCRIPTION
 
        If you use dynamic virtual disks with VMs, you may need to monitor free space on your CSV volumes.
	This script moves virtual machines into different CSV volumes by using Hyper-V Live Storage Migration.
 
    .PARAMETER  WhatIf
 
        Display what would happen if you would run the function with given parameters.
 
    .PARAMETER  Confirm
 
        Prompts for confirmation for each operation. Allow user to specify Yes/No to all option to stop prompting.
 
    .EXAMPLE
 
        Start-VMStorageOptimization
 
    .EXAMPLE
 
        Start-VMStorageOptimization -AllowPT
 
    .INPUTS
 
        None
 
    .OUTPUTS
 
        None
 
    .NOTES
 
        Author: Yusuf Ozturk
        Website: http://www.yusufozturk.info
        Email: ysfozy@gmail.com
        Date created: 08-June-2014
        Last modified: 20-July-2014
        Version: 1.4
 
    .LINK
 
        http://www.yusufozturk.info
        http://twitter.com/yusufozturk
 
#&gt;
 
[CmdletBinding(SupportsShouldProcess = $true)]
param (
 
	# Allow Passthrough Disks
	[Parameter(
		Mandatory = $false,
		HelpMessage = 'Allow Passthrough Disks')]
	[switch]$AllowPT = $false,
 
	# Debug Mode
	[Parameter(
		Mandatory = $false,
		HelpMessage = 'Debug Mode')]
	[switch]$DebugMode = $false
)
	# Enable Debug Mode
	if ($DebugMode)
	{
		$DebugPreference = "Continue"
	}
	else
	{
		$ErrorActionPreference = "silentlycontinue"
	}
 
	# Informational Output
	Write-Host " "
	Write-Host "------------------------------------------" -ForegroundColor Green
	Write-Host " Hyper-V Storage Optimization Script v1.4 " -ForegroundColor Green
	Write-Host "------------------------------------------" -ForegroundColor Green
	Write-Host " "
 
	# Set Storage Status
	$StorageStatus = $True
 
	while ($StorageStatus -eq $True)
	{ 
		# Get Worst CSV Volume
		$WorstVolume = ((Get-ClusterSharedVolume | Select -ExpandProperty SharedVolumeInfo | Select @{label="Name";expression={(($_.FriendlyVolumeName).Split("\"))[-1]}},@{label="FreeSpace";expression={($_ | Select -Expand Partition).FreeSpace}} | Sort FreeSpace -Descending)[-1])
 
		# Worst CSV Volume Information
		$WorstVolumeName = $WorstVolume.Name
		$WorstVolumeFreeSpace = $WorstVolume.FreeSpace
 
		# Get Best CSV Volume
		$BestVolume = ((Get-ClusterSharedVolume | Select -ExpandProperty SharedVolumeInfo | Select @{label="Name";expression={(($_.FriendlyVolumeName).Split("\"))[-1]}},@{label="FreeSpace";expression={($_ | Select -Expand Partition).FreeSpace}} | Sort FreeSpace -Descending)[0])
 
		# Best CSV Volume Information
		$BestVolumeName = $BestVolume.Name
		$BestVolumeFreeSpace = $BestVolume.FreeSpace
 
		# Calculate Space Gap
		[int64]$SpaceGap = [math]::round((([int64]$BestVolumeFreeSpace - [int64]$WorstVolumeFreeSpace) / 1GB), 0)
 
		if ($SpaceGap -lt "100")
		{
			# Informational Output
			Write-Host "Storage is already optimized." -ForegroundColor Green
			Write-Host " "
 
			# Set Storage Status
			$StorageStatus = $False
		}
		else
		{
			# VM Reports
			$VMReports = $Null;
 
			# Get Cluster Nodes
			$ClusterNodes = Get-Cluster | Get-ClusterNode
 
			# Informational Output
			Write-Host "Measuring VMs to find the most suitable virtual machine for the migration.. Please wait.." -ForegroundColor Cyan
			Write-Host " "
 
			foreach ($ClusterNode in $ClusterNodes)
			{
				if ($AllowPT)
				{
					# Enable Resource Metering
					$EnableMetering = Get-VM -ComputerName $ClusterNode | Where ConfigurationLocation -like "C:\ClusterStorage\$WorstVolumeName\*" | Enable-VMResourceMetering
 
					# Get Resource Usage
					$VMReports += Get-VM -ComputerName $ClusterNode | Where ConfigurationLocation -like "C:\ClusterStorage\$WorstVolumeName\*" | Measure-VM
				}
				else
				{
					# Enable Resource Metering
					$EnableMetering = Get-VM -ComputerName $ClusterNode | Where ConfigurationLocation -like "C:\ClusterStorage\$WorstVolumeName\*" | Where {(($_ | Select -Expand HardDrives).Path -notlike "Disk*") -and (($_ | Select -expand FibreChannelHostBusAdapters) -eq $Null)} | Enable-VMResourceMetering
 
					# Get Resource Usage
					$VMReports += Get-VM -ComputerName $ClusterNode | Where ConfigurationLocation -like "C:\ClusterStorage\$WorstVolumeName\*" | Where {(($_ | Select -Expand HardDrives).Path -notlike "Disk*") -and (($_ | Select -expand FibreChannelHostBusAdapters) -eq $Null)} | Measure-VM
				}
			}
 
			# Calculate Space Gap Average
			[int64]$SpaceGapAverage = [math]::round(([int64]$SpaceGap / 2), 0)
			[int64]$SpaceGapAverageMb = [int64]$SpaceGapAverage * 1024
 
			# Find Most Suitable VM
			$BestVM = ($VMReports | Where TotalDisk -lt $SpaceGapAverageMb | Sort TotalDisk -Descending)[0]
 
			if ($BestVM)
			{		
				# Best VM Information
				$BestVMName = $BestVM.VMName
				$BestVMHost = $BestVM.ComputerName
 
				# Informational Output
				Write-Host "Moving $BestVMName from $WorstVolumeName to $BestVolumeName by using Hyper-V Storage Live Migration.." -ForegroundColor Yellow
 
				# Move Virtual Machine
				Move-VMStorage -ComputerName "$BestVMHost" -VMName "$BestVMName" -DestinationStoragePath "C:\ClusterStorage\$BestVolumeName\$BestVMName"
 
				# Informational Output
				Write-Host "Done." -ForegroundColor Green
				Write-Host " "
			}
			else
			{
				# Informational Output
				Write-Host "No suitable VM is found.. $WorstVolumeName contains VMs with large spaces." -ForegroundColor Red
				Write-Host " "
 
				# Set Storage Status
				$StorageStatus = $False				
			}
		}
	}
}

Every time you run this script, it moves virtual machines unless space gap between CSVs is minimum.


Posted in Windows Powershell, Windows Server | 1 Comment | 6,315 views | 19/07/2014 22:43

You can search VMs with specific VLAN id with following script:

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$ClusterNodes = Get-Cluster | Get-ClusterNode
foreach ($ClusterNode in $ClusterNodes)
{
	Get-VM -ComputerName $ClusterNode | Where {$_.NetworkAdapters.VlanSetting.AccessVlanId -eq "173"}
}

That will give you VM list which has VLAN 173.


Posted in Windows Powershell, Windows Server | No Comment | 2,770 views | 19/07/2014 08:40

I made a module for HP OpenView on PowerShell. You can download from here:

HP OpenView PowerShell Module v1.4

Exported Functions:

Get-HPOVManagedNode
Set-HPOVManagedNode
Get-HPOVPDTList
Start-HPOVManagedNodePDT
Stop-HPOVManagedNodePDT

How to import Module?

First extract module directory into one of PS module directory path. You can see paths with $env:PSModulePath

Import-Module HPOVPS

Examples:

Getting managed node properties from HP OpenView:

Get-HPOVManagedNode -Name "node.domain.com"

Setting managed node properties from HP OpenView:

Set-HPOVManagedNode -Name "node.domain.com" -Owner "Admin" -CommunicationPath "192.168.0.1"

Getting managed nodes in PDT:

Get-HPOVPDTList

Starting PDT for managed node:

Start-HPOVManagedNodePDT -Name "node.domain.com"

Stopping PDT for managed node:

Stop-HPOVManagedNodePDT -Name "node.domain.com"

Thats all for now. I may add additional functions on this module.


Posted in Windows Powershell, Windows Server | No Comment | 3,694 views | 10/07/2014 15:43

You may need to see passthrough disk information from Hyper-V VMs on several clusters.

So you can use following script:

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# Get Clusters
$Clusters = Get-Content Clusters.txt
 
foreach ($Cluster in $Clusters)
{
	# Get Cluster Nodes
	$ClusterNodes = Get-Cluster $Cluster | Get-ClusterNode
 
	foreach ($ClusterNode in $ClusterNodes)
	{
		# Clear PT Values
		$PTDisks = $Null;
 
		# Get Passthrough Disks
		$PTDisks = Get-VM -ComputerName $ClusterNode | Get-VMHardDiskDrive | Where Path -like Disk*
 
		if ($PTDisks)
		{
			# Get VM Name
			$VMName = $PTDisks[0].VMName
 
			# Informational Output
			Write-Host Working on $VMName..
 
			foreach ($PTDisk in $PTDisks)
			{
				# Get Passthrough Disk Info
				$PTInfo = $PTDisk.Path
 
				# Informational Output
				Write-Host $PTInfo
			}
 
			# Informational Output
			Write-Host " "
			Write-Host " "
		}
	}
}

That will give you disk information output. You should add all clusters names into Cluster.txt file.


Posted in Windows Powershell, Windows Server | No Comment | 2,739 views | 04/07/2014 18:00

Lets assume that you have a 3 years old storage and you are using it to place your virtual machines on Hyper-V Cluster. Then you bought a new storage box, you created LUNs on it and assign them as a CSV volumes on your existing Hyper-V Cluster. So next achievement would be migrating your virtual machines from old storage to new one.

Update: This script is now a function called Start-CSVMigration, you can reach it from:
http://www.yusufozturk.info/virtual-machine-manager/hyper-v-csv-migration-start-csvmigration.html

That migration could be a headache if you have many VMs and many storage LUNs. So in that case, you can use following script to migrate Virtual Machines per CSV Volume. Just you need to specify which CSV volume you would like to drain. So let’s assume that volume is Volume1. I will specify that volume by following line:

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# Target Volume
$TargetVolume = "Volume1"

Now you need to specify other CSV Luns as well to filter them. Otherwise, you can migrate a VM to old storage again. So we are filtering them by following lines:

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# Filtered Volumes
$FilteredVolumes = @()
$FilteredVolumes += $TargetVolume
$FilteredVolumes += "Volume2"
$FilteredVolumes += "Volume3"
$FilteredVolumes += "Volume4"
$FilteredVolumes += "Volume5"
$FilteredVolumes += "Volume6"

We are creating an array called FilteredVolumes then adding our old storage luns to this array. You will see that I’m also adding $TargetVolume to same array. Because there is a chance to try to migrate a VM to same volume. So that will prevent that kind of issues.

So how can I get destination volume?

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# Full Query
$FullQuery = '((Get-ClusterSharedVolume |' + $Query + ' Select -ExpandProperty SharedVolumeInfo | Select @{label="Name";expression={(($_.FriendlyVolumeName).Split("\"))[-1]}},@{label="FreeSpace";expression={($_ | Select -Expand Partition).FreeSpace}} | Sort FreeSpace -Descending)[0]).Name'

As you can notice from the code below, i’m getting all CSV volumes, filtering old storage volumes, sorting new storage CSVs by their free space and selecting the storage which has biggest available disk space.

So I’ll place VM into that volume:

Move-VMStorage -ComputerName "$ClusterNode" -VMName "$VMName" -DestinationStoragePath "C:\ClusterStorage\$Volume\$VMName"

If you get the idea, now I can share full script:

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# Target Volume
$TargetVolume = "Volume1"
 
# Filtered Volumes
$FilteredVolumes = @()
$FilteredVolumes += $TargetVolume
$FilteredVolumes += "Volume2"
$FilteredVolumes += "Volume3"
$FilteredVolumes += "Volume4"
$FilteredVolumes += "Volume5"
$FilteredVolumes += "Volume6"
 
# Clear Query
$Query = $Null;
 
# Create Query
foreach ($FilteredVolume in $FilteredVolumes)
{
	$Query = $Query + ' Where {$_.SharedVolumeInfo.FriendlyVolumeName -notlike "*' + $FilteredVolume + '"} |'
}
 
# Full Query
$FullQuery = '((Get-ClusterSharedVolume |' + $Query + ' Select -ExpandProperty SharedVolumeInfo | Select @{label="Name";expression={(($_.FriendlyVolumeName).Split("\"))[-1]}},@{label="FreeSpace";expression={($_ | Select -Expand Partition).FreeSpace}} | Sort FreeSpace -Descending)[0]).Name'
 
# 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 = Invoke-Expression $FullQuery
 
		# Move Virtual Machine
		Move-VMStorage -ComputerName "$ClusterNode" -VMName "$VMName" -DestinationStoragePath "C:\ClusterStorage\$Volume\$VMName"
 
		Write-Host "Done."
	}
}

It’s enough to run this script on one of the Cluster Node, so that will start migrating virtual machines. That will also give an output, so you will be able to see which VM you are migrating. I hope you will find it useful. See you!

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