Might check the disk sector size.
https://docs.microsoft.com/en-us/answers/topics/windows-server.html
HI everyone,
Good morning! Hope you can help, I already performed this twice. Here is what I encountered.
On the old file server running windows 2012, the current occupied size on the data drive is 3.5tb. No compression there. Then I used robocopy to transfer the data to a 6tb drive on a new file server running 2022. After 4 days, the 6tb drive on the new server is packed! I thought the first I may not do the robocopy command correctly. So I started over the process by deleting anything on the new server, but the outcome is still the same.
May I ask what happened? The 3.5tb on the old server will become 6tb? What should I check?
Thank you for your help.
Takami Chiro
3 answers
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Takami Chiro 251 Reputation points
2021-10-04T15:39:23.607+00:00 Hi DSPatrick,
I think I know why. I found that the deduplication of the windows file server feature is enabled on the existing file server. So I just enabled and installed the same feature on the new file server and perform the data transfer again. I will see if that will preserve the same data size as the old server on the new server.
Thank you for your response!
Takami Chiro.
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Limitless Technology 39,381 Reputation points
2021-10-06T18:21:40.21+00:00 Hello @Takami Chiro
You can check if Disk deduplication enabled or not on your data volume as per below powershell command example.
Get-DedupStatus -Volume "D:","F:"
Also check if the volume is formatted with NTFS or ReFS file system.
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