functions/Add-VMDiskSpace.ps1
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<# .SYNOPSIS Add disk space to a VMware Windows VM in vCenter .EXAMPLE Add-VMDiskSpace -VM test-1 -IncreaseSpaceGB 10 #> function Add-VMDiskSpace { [CmdletBinding()] param( [Parameter(Mandatory=$true)] [string]$VM, [Parameter(Mandatory=$true)] [string]$IncreaseSpaceGB, [Parameter(Mandatory=$true)] [string]$vCenterServer ) process { Write-Output 'Connecting to vcenter' Connect-VIServer $vCenterServer | Out-Null #See if any disk is same size and if so exit $AllDisks = Get-VM $VM | ForEach-Object {$_.Guest.Disks} | Select-Object CapacityGB | Measure-Object | Select-Object count $UniqueDisks = Get-VM $VM | ForEach-Object {$_.Guest.Disks} | Select-Object CapacityGB -Unique | Measure-Object | Select-Object count if ($AllDisks.Count -ne $UniqueDisks.Count) { Write-Output "VM has more disks that are the same size. Exiting" Return } #Get VM hard disks $HardDisks = Get-HardDisk -VM $VM | Select-Object name,capacitygb,parent #Get VM guest hard disks $Disks = Get-VM $VM | ForEach-Object {$_.Guest.Disks | ForEach-Object { $GuestCapacity = [math]::Round($_.CapacityGB) $HardDiskLabel = '' #Match Hard Disk with Guest Disk based on size rounded ForEach ($HardDisk in $HardDisks) { $HardDiskCapacity = [math]::Round($HardDisk.CapacityGB) If ($GuestCapacity -like $HardDiskCapacity) { $HardDiskLabel = $HardDisk.Name } } #Create hashtable of each pipeline object $_ | Select-Object -Property Path,@{ Name='CapacityGB';Expression={[math]::Round($_.CapacityGB)}},@{ Name='FreeSpaceGB';Expression={[math]::Round($_.FreespaceGB)}},@{ Name='HardDiskName';Expression={$HardDiskLabel}},@{ Name='VM';Expression={$VM} } } } Write-Output 'Disks available:' $Disks | Format-Table -Autosize #Type in hard disk name exactly to increase $HardDiskChoice = Read-Host -Prompt "**Specify hard disk by name to resize**" #Match answer to prompt with disk $Drive = ($Disks | Where-Object {$_.HardDiskName -eq $HardDiskChoice}).Path.Replace(':\','') if (!$Drive) { Write-Verbose -Message 'Something went wrong while selecting drive letter' Return } else { Write-Verbose "$Drive letter selected to resize" } #Get current size of disk and increase it $Size = Get-HardDisk -Name $HardDiskChoice -VM $VM | Select-Object -ExpandProperty CapacityGB Write-Output 'Adding VM hard disk size' Get-HardDisk -Name $HardDiskChoice -VM $VM | Set-HardDisk -CapacityGB ($Size + $IncreaseSpaceGB) -Confirm:$False | Select-Object Parent,Name,CapacityGB | Format-Table -AutoSize #Remote into Windows computer Invoke-Command -ComputerName $VM -ArgumentList $Drive -ScriptBlock { #"Rescan" shows the new increased drive in the Windows OS "rescan" | diskpart | Out-Null #Get supported size and then increase to max Write-Output '**Resizing Windows partition' $size = (Get-PartitionSupportedSize -DriveLetter $Using:Drive) Resize-Partition -DriveLetter $Using:Drive -Size $size.SizeMax -Confirm:$False Write-Output "**New Size for $Using:Drive" Get-Partition -DriveLetter $Using:Drive | Select-Object Driveletter,@{Name="New Disk Size"; Expression={[math]::Round($_.Size/1GB)}} | Format-Table -AutoSize } Disconnect-VIServer -Confirm:$False } } |