External HD Folders on a secondary server

I have 1 2012 server(physical) and 1 2008R2 server(virtual).  Both are setup as DC but have different functions.  I have a 3TB external drive connected to the 2012 box and have setup a folder that will be shared to everyone.  I have been unsuccessful in finding a way to see the folder in explorer from the external drive on the 2008R2 box.  I can map the external drive to the 2008R2 box but not extend the folder into the file explorer so others can see.  Rather than giving everyone access to the external drive as a mapped network drive I would like to only show the folder in the file explorer.  I am attempting to allow different departments to place old documets onto the external drive and free space on the internal drives.  Any assistance with this would be greatly appreciated.
William DabbsAsked:
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Aret the physical and the VM part of the same system hyper-v setup?

You need to have the hyper-v pass the USB external to the VM
USB based even with USB-3 would be as fast as if it were connected directly via SATA/esata.

You can then setup folders as you see fit and share them as you see fit.
Create a DFS \\domain\archive


I am not quite sure why .

It might be using age of the file  last modify, that you could search through the current repository of each department and relocate the file into the archive.
a single drive 3TB poses a risk of loss of whatever data is placed on it.

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David Johnson, CD, MVPOwnerCommented:
When one adds storage to a network one has to budget an additional 3X the amount of added storage for backup using the 3-2-1 principle (3 Backups/2Different Media/1offsite)

as far as using the 3TB drive as a single drive letter to a hyper-V machine you have lots of options:
instead of using the new virtual machine wizard, create a new virtual disk one of the options is to use a physical disk on the host. Or one could make a approx 3TB vhdx and mount it or.. create the 3TB vhdx and make it iSCSI target.
William DabbsAuthor Commented:
Worked great!
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Windows Server 2008

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