A Quick Test on Windows 2012 File Deduplication

As part of my certification studies, I decided to give a try on storage pools and file deduplication.

A simple scenario, with a standalone server and three (virtual) disks. You can’t use deduplication on system disks, so I added two 127 Gb volumes, thin provisioning.

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They show up in Server Manager:

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I have created a storage pool:

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And a new volume, for which I picked the mirror option (RAID 1 equivalent):

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Make sure you pick NTFS as your file system.

Before enabling the dedup, I created three folders and copied the same content to each one of them: family pictures!

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Ok. When everything is in place, all you have to do is enable the deduplication for that volume:

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I have set the days to 0, to see immediate results.

And to speed things up, you can manually start the dedup job:

Try a few times, until you see it is running:

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Then you can check the status:

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You can also check it here, in the Volume properties:

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There you go!

Not too hard.

Thank you!