Unidesk 2.0 Script to Increase UEP size

Transcription

1 Unidesk 2.0 Script to Increase UEP size Summary When creating a desktop the size of the Personalization Layer (UEP) is defined in GB for the desktop. There are two vmdk files that make up the UEP both set to this size. One is for Application files and Settings; the other is for user data. They are normally the last two disks attached to the desktop as show below. This script can be used to increase the size of the UEP. The script uses VMware PowerCli PowerShell Cmdlets to perform the following process 1. Iterate through the defined desktops 2. For each desktop a. Remove Any Existing Snapshots If we don t remove the snapshots we cannot increase the size of the disks. b. Iterate through the Desktops disks i. If the Disk has /User/ in the path increase its size to the defined value ii. Then within Windows increase the disk partition to the same value The desktop can be running and the user can be logged on. The script uses VMware Tools scripting integration to perform the partition extension in Windows. Version 2.0 April 20, 2012 Page 1

2 Restrictions The following restriction should be kept in mind: 1. This applies to Unidesk 2.0 systems only, do not use on Unidesk 1.x 2. The desktop must be running when the script is run, therefore if desktops are actively being REBIC ed ensure that the desktops you are running the script against are not in the list of those being rebuilt 3. Requirements 4. PowerCli is required on the machine the script is run from 5. Administrator Access to vcenter is required 6. Administrative Access to the desktops is required Setting up the script Copy the script into a folder. Edit the script appropriately. At the top of the script there is a section where variables are defined as shown below. Each of these settings must be configured for your environment. # Define Variables #Enter one or more Desktops in an array $Desktops #Enter Size in GB $SizeinGB = 10 #Enter vcenter Server FQDN. You will be prompted for credentials $vcenter = "vircenter.zylowski.com" #Enter Admin User and password on Windows Desktops $GuestUser = "zylowski\administrator" $GuestPassword = "password" The $Desktops array can have as many desktops defined as needed. Just separate the desktops with a coma and put quotes around them. The $size in GB is the size the script sets the UEP to. vcenter server and Desktop Admin credentials are required. When you run the script it will prompt for vcenter credentials. Modify VMware Script GuestDiskExpansion_WindowsGuest VMware include a script with PowerCLI that is used here to expand the disk within windows. This script has a command that starts the diskmgmt mmc to ensure that the diskpart command is available. However this call to the service creates errors the user would see in windows. The command is actually not necessary and it can be removed. To make the change on the machine where you are running the script and have PowerCLI installed go to the following path and edit this file: Version 2.0 April 20, 2012 Page 2

3 Then rem out the line that calls diskmgmt.msc Running the script Run PowerCLI and change directories to the script folder. Make sure you have previously run the following command to allow scripts to run on this system or run it now Set-ExecutionPolicy Remote Signed Then run the script by typing>.\growuep.ps1 Version 2.0 October 12, 2012 Page 3

4 The script will output lots of information as it runs, including when is needs to delete a snapshot or update the disks. The results of the increase are shown below. The upgrade here was from 4 to 10 GB. The script #Script Developed by Rob Zylowski, Unidesk Corporation #Version #This script can be used to increase the size of the Personalizaiton Layer for Unidesk Persistent Desktops #The desktops should be running and the user can even be logged on #The script requires VMware PowerCLI be installed on your workstation #This may generate an error if its already loaded so we will clear the error cache $Error.Clear() # Define Variables #Enter one or more Desktops in an array $Desktops #Enter Size in GB $SizeinGB = 10 #Enter vcenter Server FQDN. You will be prompted for credentials $vcenter = "vircenter.zylowski.com" #Enter Admin User and password on Windows Desktops $GuestUser = "zylowski\administrator" $GuestPassword = "password" # MAIN SCRIPT #Load the powercli cmdlets #If necessary run the powercli snappin. If it is already loaded you will see an error add-pssnapin VMware.VimAutomation.Core Connect-VIServer -Server $vcenter $Capacity = 1024*1000*$SizeinGB #Run the process for each MM in the Desktops Array foreach ($MM in $Desktops) Version 2.0 April 20, 2012 Page 4

5 #If there is a snapshot on the desktop remove it $Snapshot = Get-Snapshot -VM $MM If ($Snapshot -ne $null) "Deleting Snapshot..." Remove-Snapshot $Snapshot -RemoveChildren -Confirm:$false #Get the list of hard drives for the virtual machine $GetAllHds = Get-HardDisk -VM $MM #For each hard disk see if its a UEP disk by looking at the path. If it has a /User/ in the path its a UEP. foreach ($s in $GetAllHds) $TargetDisk = Get-HardDisk -VM $MM where $_.Name -eq "$s" If ($TargetDisk.Filename -like "*/User/*") $TargetDisk.Filename + " is a UEP Disk" Set-HardDisk $TargetDisk -CapacityKB $capacity -ResizeGuestPartition -GuestUser $GuestUser -GuestPassword $GuestPassword -confirm:$false Else $TargetDisk.Filename + " is Not a UEP Disk" Version 2.0 October 12, 2012 Page 5