Posts Tagged ‘free space’

Enabling Data Deduplication in Windows 8.1

When you do a lot of deployments whitin your Windows 8.1 Client Hyper-V machine, the disk space is getting more and more. Because I’ve only one SSD drive of 250 GB, the free space becomes critical. I’ve got to find a way to reduce it. I read a few blogs and found a solution which is the dedup. But data deduplication is not available whitin Windows 8.1.

This method is not officially supported by Microsoft ,however found a way to save my disk space.

This method requires the CAB files from the Windows Server 2012 R2.  Either you can get those files from a Windows Server 2012 R2 or you can download the files from my OneDrive here.
The files are as follow :

I downloaded the files to a folder as below and installed all the CAB files:

DataDedup_02    DataDedup_01

Next step is to install the CAD files on your Windows 8.1 machine. I’ve used DISM to install these files.

DataDedup_03    DataDedup_04

After you’ve succesfully installed the CAB files, you’re able to install the “Data Deduplication” role. I’ve also used DISM (see screenshot below).

DataDedup_05    DataDedup_06    DataDedup_07

The next step is to enable Data Deduplication on the volume or volumes. First I’ve readthe current free space on my E: drive. After enabling Data Deduplication on this volume, I’ve manually started the Data Dedup task.

DataDedup_08    DataDedup_09    DataDedup_10

DataDedup_11    DataDedup_12    DataDedup_13


But after enabling Data Depuplication and running the Dedup Job, there’s nothing happening!! Why?? Because the minimumFileAgeDays is 3 and my files on the hard drives are 2 days old 🙂 So I’ve added the MinimumFileAgeDays to 0 (zero days). After running the Dedup Job again, let’s have a look on the current free space!! Dedup is doing his job!!! 🙂 Cool!

DataDedup_15    DataDedup_16    DataDedup_17

DataDedup_18    DataDedup_19    DataDedup_20

DataDedup_21    DataDedup_22

The final screenshot are the commands I’ve used to configure this in my lab environment. Once again, this method is not officially supported by Microsoft.It’s a great way to save some disk space on your expensive SSD hard drive! Now you can deploy more virtual machines on the same hard drive, so happy automation and deployment!! 🙂