Remdiw GmbH

Tag: Deduplication

  • Deduplication on my Windows 8 Notebook with AX Demo Hyper-V

    [Update 6.8.2015]: Caution, at the moment there is no way to activate Deduplication on Windows 10

    After reading http://www.expta.com/2013/04/updated-blistering-fast-hyper-v-2012.html, http://www.expta.com/2013/02/windows-server-2012-deduplication-is.html and http://weikingteh.wordpress.com/2013/01/15/how-to-enable-data-deduplication-in-windows-8/ I enabled deduplication on my notebook, saving me lots of space on my precious SSD.

    It’s a pity that you cannot enable it on your boot drive, as this happens to be my largest SSD, but my secondary SSD with just 128 GB also benefited from the deduplication. I might reorganize my drives at some later stage.

    Here a short summary of the steps required for enabling deduplication on a windows 8.1 Notebook:

    1. Download Windows Server 2012 deduplication package (e.g. here)
    2. In powershell run the following to install the package files that have been extracted into the current directory
      dism /online /add-package /packagepath:Microsoft-Windows-VdsInterop-Package~31bf3856ad364e35~amd64~~6.3.9600.16384.cab /packagepath:Microsoft-Windows-VdsInterop-Package~31bf3856ad364e35~amd64~en-US~6.3.9600.16384.cab  /packagepath:Microsoft-Windows-FileServer-Package~31bf3856ad364e35~amd64~~6.3.9600.16384.cab /packagepath:Microsoft-Windows-FileServer-Package~31bf3856ad364e35~amd64~en-US~6.3.9600.16384.cab  /packagepath:Microsoft-Windows-Dedup-Package~31bf3856ad364e35~amd64~~6.3.9600.16384.cab /packagepath:Microsoft-Windows-Dedup-Package~31bf3856ad364e35~amd64~en-US~6.3.9600.16384.cab
    3. The to enable deduplication run this powershell command
      dism /online /enable-feature /featurename:Dedup-Core /all
    4. Disable Periodic Processing because our main focus will be the deduplication of VHDs
      Set-DedupSchedule -Name "BackgroundOptimization" -Enabled $false
    5. Enable Dedup on your volume of choice
      Enable-DedupVolume D:
    6. Set minimum age to zero as VHD Files will always have recent modifications. (Maybe wait a moment for the previous command to complete.)
      Set-Dedupvolume D: -MinimumFileAgeDays 0
    7. Run Deduplication only when Hyper-V stopped
      Start-DedupJob –Volume D: –Type Optimization
      Result:
      image
    8. Disable (e.g. before installing Windows 10)
      Start-DedupJob -Volume D: -Type Unoptimization
      Disable-DedupVolume -Volume D:

    [Update 6.8.2015 – Removed Windows 8 commands; Add Disable Command; Warning Windows 10]