In this tutorial we will show you a fast and easy way to configure Data Deduplication via Powershell.
At first we need to add role for deduplication:
Import-Module ServerManager Add-WindowsFeature -name FS-Data-Deduplication Import-Module Deduplication
Now we need to enable deduplication (this time on E: drive).
Enable-DedupVolume E: -UsageType Default
If you are planning to make deduplication for Hyper-V machines storages, run this command:
Enable-DedupVolume E: -UsageType HyperV
Now we need to set the minimum age for files (days before the deduplication starts).
Set-Dedupvolume E: -MinimumFileAgeDays 20
If you want, you can add a folder for deduplication
Set-DedupVolume –Volume "E:" -ExcludeFolder "E:\temp"
Now set the minimum size for file:
Set-DedupVolume –Volume "E:" -MinimumFileSize "32768"
At this step we need to disable deduplication for files in use:
Set-DedupVolume –Volume "E:" -OptimizeInUseFiles:$False
Set-DedupVolume –Volume "E:" -OptimizePartialFiles:$False
To get the list of deduplication processes run the following command:
To get deduplication schedule run:
If you want to add a new task, run this command — New-DedupSchedule
Here is an example on how to add new optimization task:
New-DedupSchedule –Name "ThroughputOptimization" –Type Optimization –Days on,Tues,Wed,Thurs,Fri,Sunday –Start 00:00 –DurationHours 8 -Priority Normal
Now let`s take a closer look on this example:
–Name — new task name
–Type — task type (Optimization/GarbageCollection/Scrubbing)
Scrubbing — recovers damaged data
GarbageCollection — free up some space
Optimization — deduplication and data compression
–Days in what days should the task run?
—Start at what time?
–DurationHours how many hours the task will be on run
To view current deduplication status run command:
You must get something like this:
Enabled UsageType SavedSpace SavingsRate Volume
——- ——— ———- ———— ——
True Default 76.94 GB 66 % E:
In this example, deduplication reduced space from 65GB to 354MB.
And that`s great efficiency! Easy set ups, guys! In newer article we also took a look on data deduplication in newer Windows Server 2016 version.