How to Configure Data Deduplication on Windows Server

deduplication on windows server

Deduplication is a Windows server feature that lets you save Disk Space on a server by grouping identical sectors. This can be very helpful in cost-cutting. Large data sets usually have duplicate data that take up extra disk space, thereby increasing storage costs. Deduplication prevents this from happening.

In summary, deduplication looks for duplicate data junks in your Windows server file system, removes the duplicate, and compresses the remaining data.

In this guide, I will show you how to install and configure Deduplication on Windows servers 2016, 2019, and 2022. But before then, take note that it is not recommended to enable this feature on disk volumes hosting your virtual machines, databases, and WSUS or any related file.

In addition, you should ensure that your backup software is compatible with deduplication before proceeding.

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Installing Deduplication Feature on Windows Server

Navigate to Server manager > Manage > Add roles and features and click the Next button.

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Click on the Next button and expand the File and Storage Services, then the File and ASCII Services. Here, select Data Deduplication.

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Select the available role, and continue clicking the Next button till you get to Install. Click on this to install the selection.

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Wait till installation is complete, then close the wizard.

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Configure Data Deduplication

Now that you have deduplication installed on your server. Navigate to Server Manager > File and Storage Services > Volumes. Here, you will see all available disks. To enable data deduplication for a Disk, right-click on it, and select Configure Data Deduplication.

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This opens the deduplication settings. From the Data Deduplication option menu, select the deduplication type. In my case, I’m going to select the General purpose file server option.

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Next, select the date range of data to be deduplicated.

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Next, you can add custom files to exclude from the deduplication.

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And looking at the lower left corner of the screen, you can select the Set Duplication Schedule button to enable background optimization. Click the Apply button to save your settings.

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When you are done with this section, and have closed the wizard. You will notice a new deduplication rate on the selected disk. This indicate the deduplication compression that was done on the disk volume.

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Following your settings, your disk volume should be optimized with deduplication. I hope you find this guide helpful, kindy lave a comment if you have any questions.

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