vSphere

:: PowerCLI | Remove VMs

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:: PowerCLI | Remove VMs

Just a quick script from me that will help delete a bunch of VMs.
You need to have a list with all computer names in a .txt or .csv file for that.

Uncomment the get-credential part if you are not running the ISE with your admin that has access to the vCenter server.

<#
.SYNOPSIS Removes a VM from View and vCenter 
.EXAMPLE get-content "list-of-machines.csv" | remove-vm.ps1 
.EXAMPLE remove-vm.ps1 vm1 
.EXAMPLE remove-vm.ps1 vm1, vm2, vm3 
.PARAMETER VM One or more Virtual Machine names 
#>
[CmdletBinding()]param([Parameter(Mandatory=$True,ValueFromPipeline=$True)][string[]]$VM ) 

BEGIN { 
  $ErrorActionPreference = "Stop" 
} 

PROCESS { 
  ForEach ($a in $VM) { 
    try { 
      remove-vm -vm $a -DeletePermanently -confirm:$false 
      Write-Output "$a successful!" 
      } 

catch { 
  $ErrorMessage = $_.Exception.Message 
  Write-Output $ErrorMessage 
  Write-Output "$a failed!" 
} 

finally {} 
} 
} 
END {}

PowerCLI | Increase and Expand VM Guest OS Disk

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:: Increase and Expand VM Guest OS Disk ::

Hi all,

as i finally have worked out two scripts that are able to increase and extend the Guest OS Disk (XP/Win7) i thought you might find it useful.

Please note that for the XP version to work both VMs (or all VMs) need to be powered off. Like that you can also increase/extend system disks.

 

hdd-increase-xp.ps1

<#
.SYNOPSIS
Increases Harddisks for Windows machines (including Guest OS extend)
.EXAMPLE
get-content "list-of-machines.csv" | hdd-increase.ps1
.EXAMPLE
hdd-increase.ps1 vm1
.EXAMPLE
hdd-increase.ps1 vm1, vm2, vm3
.PARAMETER VM
One or more Virtual Machine names
#>

[CmdletBinding()]
param(
    [Parameter(Mandatory=$True,ValueFromPipeline=$True)]
    [string[]]$VM
)

BEGIN {
    $ErrorActionPreference = "Stop"
    $admincred = Get-Credential
    $capacityKB = "62914560"
    $helpervm = '<insert helper vm here>'
    }

PROCESS {
    ForEach ($a in $VM) {
        Get-VM $a | Get-Harddisk | where {$_.Name -eq "Hard disk 1" } | Set-HardDisk –CapacityKB $capacityKB -ResizeGuestPartition -helpervm $helpervm -Confirm:$false -GuestCredential $admincred
        #Get-VM $a | Get-View -ViewType VirtualMachine -Filter @{"Name" = $_ } | write-output $_.Guest.Disk.Length
        Write-Output "$a successful!"
        Start-VM $a
        Write-Output "$a started."
        }
    }
END {}

hdd-increase-w7.ps1

<#
.SYNOPSIS
Increases Harddisks for Windows 7 machines (including Guest OS extend)
.EXAMPLE
get-content "list-of-machines.csv" | hdd-increase.ps1
.EXAMPLE
hdd-increase.ps1 vm1
.EXAMPLE
hdd-increase.ps1 vm1, vm2, vm3
.PARAMETER VM
One or more Virtual Machine names
#>

[CmdletBinding()]
param(
    [Parameter(Mandatory=$True,ValueFromPipeline=$True)]
    [string[]]$VM
)

BEGIN {
    $ErrorActionPreference = "Stop"
    $admincred = Get-Credential
    $capacityKB = "62914560"
    $harddisk = "Hard disk 1"
    }

PROCESS {
    try {
        foreach ($a in $VM) {
        Get-VM $a | Get-Harddisk | where { $_.Name -eq $harddisk } | Set-HardDisk –CapacityKB $capacityKB -ResizeGuestPartition -Confirm:$false
        Write-Output "$a successful!"
        }
    }
    catch {
        $ErrorMessage = $_.Exception.Message
        Write-Output $ErrorMessage
        Write-Output "$a failed!"
        }
    finally {
    }
}
END {}

 

Report Guest Disk Sizes | PowerCLI

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I already explained in my previous post how to grow/extend Guest OS disks with PowerCLI.

Now before we can increase harddrives we also need to identify them. I therefor created this script. 

$MyCollection = @()
$AllVMs = Import-Csv -Header Desktop "hdd-check-input.csv" | foreach-object { Get-View -ViewType VirtualMachine -Filter @{"Name" = $_.Desktop}}
$SortedVMs = $AllVMs | Select *, @{N="NumDisks";E={@($_.Guest.Disk.Length)}} | Sort-Object -Descending NumDisks
ForEach ($VM in $SortedVMs){
 $Details = New-object PSObject
 $Details | Add-Member -Name Name -Value $VM.name -Membertype NoteProperty
 $DiskNum = 0
 Foreach ($disk in $VM.Guest.Disk){
 $Details | Add-Member -Name "Disk$($DiskNum)path" -MemberType NoteProperty -Value $Disk.DiskPath
 $Details | Add-Member -Name "Disk$($DiskNum)Capacity(MB)" -MemberType NoteProperty -Value ([math]::Round($disk.Capacity/ 1MB))
 $Details | Add-Member -Name "Disk$($DiskNum)FreeSpace(MB)" -MemberType NoteProperty -Value ([math]::Round($disk.FreeSpace / 1MB))
 $DiskNum++
 }
 $MyCollection += $Details
}
$MyCollection | export-csv hdd-check-output.csv
#Out-GridView
# Export-Csv, ConvertTo-Html or ConvertTo-Xml can be used above instead of Out-Gridview

The advantage using get-view is the nice performance if you run this script.

Try it out. You cant break things 🙂 It will give you a nice .csv as output.

Change & Grow VM Hard Disk

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We are right now in the need of resizing all of our Hard Disks on the Virtual Desktop VMs from 40GB to 60GB.
I was looking quite some time to find the appropriate command and this is how you do it:

Get-HardDisk -vm "VMName" | where {$_.Name -eq "Hard Disk 1"} | Set-HardDisk –CapacityKB 62914560 -ResizeGuestPartition -Confirm:$false

A little bit of extra information (we ran into some issues performing this):

The second part of the script (Set-Harddisk) actually calls a library function that is using the “Invoke-VMScript” command.

You need to have following privileges on the vCenter System to execute it.
VirtualMachine.GuestOperations.Modify and VirtualMachine.GuestOperations.Execute.

vmware

Update:

This script makes it even more comfortable. You provide a list of desktops in the input file and it will do all of them in one run. After that you will see a report of the changes in the output file.

Import-Csv -Header Desktop "hdd-increase-input.csv" | foreach-object { Get-HardDisk -vm $_.Desktop | where {$_.Name -eq "Hard disk 1"} | Set-HardDisk –CapacityKB 62914560 -ResizeGuestPartition -Confirm:$false
Write-host "-----------------------------------------------------------------------------------------" -foregroundColor White -backgroundColor DarkGreen
} | export-csv "hdd-increase-output.csv"