Tag Archives: Windows 2012

How to enable Data Deduplication in Windows 2012

Windows Server 2012

In this post I’ll look at how to install and setup Data Deduplication in Windows 2012. It’s the same process for Windows 2012 R2.




1. Open Server Manager, select Manager, select Add Roles and Features, follow the prompts until you get to Server Roles. Expand File and Storage Services, expand File and iSCSI Services, and select Data Deduplication. Click Next, Next, Install.

Add Roles and Features - Data Deduplication

2. Now Data Deduplication is installed, I would recommend running the DDPEval.exe command on the volume you intend to use Data Deduplication with. This will give you an estimate of the amount of disk space you will save. Note – you can only run this on a volume before you have configured Data Deduplication on that volume.


3. Once you are happy with the estimated space savings in Server Manager, select File and Storage Services, select Volumes. Right click the volume you would like to enable Data Deduplication on, and select Configure Data Deduplication.

Configure Data Deduplication

4. Check the Enable data deduplication check box. Enter a value in the Deduplicate files older than (in days) option. The default is 5, in the example below i’ve chosen 30 to start off with.

Next, click the Set Deduplication Schedule.

Enable Data Deduplication

5. Check the box to Enable background optimization, and in the example below i have checked Enabled throughput optimization too.

Enable Deduplication Schedule

6. After Data Deduplication been run assess how successful it has been, and tweak any optimization settings as required.

Below is a before and after shot using the settings above.

Data Deduplication before

Data Deduplication after

Useful Resources

1. Technet – Install and Configure Data Deduplication

2. Microsoft Storage Team Blog

Related Posts

1. Free ebook: Introducing Windows Server 2012 R2

2. How to install Exchange 2010 (SP3) on Windows Server 2012

3. PowerShell: Get-ADUser to retrieve password last set and expiry information

4. Training Resources for 74-409 Server Virtualization with Windows Server Hyper-V and System Center

5. How to install Exchange 2013 (SP1) on Windows Server 2012 R2

Recommended Small Business Scenarios with Windows Server 2012 Guide Available for Download

Microsoft have kindly put together a cheat sheet for Small Business Scenarios with Windows Server 2012, it details on premise, hybrid and cloud solutions, along with an FAQ and can be downloaded here.

Windows 2012 Deployment guide

A full blog post can be found over at the Microsoft SMS&P Partner Community Blog here.

Update for WSUS 3.0 SP2 to provide updates for Windows 8 and Server 2012 installation walkthrough

Microsoft released an update to WSUS 3.0 SP2 on Friday, KB2734608.

The update lets servers runing WSUS 3.0 SP2 provide updates to Windows 8 and Windows Server 2012 machines.

It also fixes issues with KB2720211, and includes three other fixes, KB2530678, KB2530709, KB2720211.

Click here for full details.

Below is a walkthrough of the installation.

From the KB Article page download the x32 or x64 bit version of the update, for SBS 2011 we’re downloading the x64 bit version.

WSUS 3.0 SP2 Update

WSUS KB2734608 DownloadOnce downloaded run the update.

WSUS Update Installation

On my test SBS server the update took about 5 minutes to install.

WSUS Update Restart RequiredOnce the update has completed a restart is required.

Open the SBS Console, go to Security and the Updates tab. Click Synchronize now.

Synchronize Now

The synchronization can take a while, so check back later. Once it’s completed you are ready to update Windows 8 and Windows 2012 computers.

WSUS Synchronizing Updates

If you have Windows 8 or Server 2012 computers that have synchronized with WSUS prior to the update being applied you have a bit more work to do.

On the client computers run the following commands.

net stop wuauserv

rd /s %windir%softwaredistribution

net start wuauserv

You should now be able to receive Windows 8 and Windows 2012 updates from the WSUS server.

Introducing Windows Server 2012 – Free ebook

Microsoft press are offering a free ebook “Introducing Windows Server 2012”, penned by Mitch Tulloch and the Windows Server Team. If you want to get ahead with Windows 2012 it looks like a good starting point.

See the link below for full details.

Introducing Windows Server 2012

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