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I have a bit of a weird one that I hope one of you have come across. In Resmon, my C, D, E, and F drives all show up as follows:

H:2\
H:3\
H:4\
H:5\

In Perfom and Disk Manager it shows up correctly. The drives are all TinTri drives, and the server in question is a HyperV guest. This VM runs SQL Server 2016 SP1 Developer Edition.

It doesn't seem that anything is affected negatively, it is just strange. The resources I was able to find on Google (links below) doesn't give any real answers.

Here is a screenshot:

Resmon Showing the strange drive letters

Here are the links to this specific issue I was able to find:

https://social.technet.microsoft.com/Forums/lync/en-US/9e98829b-8391-491f-97ce-64559f27e9ca/resource-monitor-shows-disk-activity-on-wrong-disk?forum=w7itproperf

https://www.sevenforums.com/performance-maintenance/286853-w7-resource-monitor-shows-activity-wrong-drive.html][2]

It seems that this issue is not limited to SQL Server and can pretty much happen to any system (a guy in the link below referred to adding a hard drive in his laptop then it happened)

Like I said, it doesnt seem to impact anything negatively, its just strange and it will be great to know why this is happening.

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