Apply Bitlocker to OS drive or Active Directory Server

We have Active Directory (2008R2) servers at 35 branch locations.  We store sensitive data on these servers.  We have bitlocker protecting our desktops at these locations but not the servers.  Does anyone know of any problems bitlocking the OS drive of Active Directory servers?
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Field Marshall BobAsked:
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pjamCommented:
Are the servers 2008 r2 Core servers at the other locations?
Have you considered EFS for sensitive data folders or volumes?
https://technet.microsoft.com/en-us/library/cc721923%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396
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McKnifeCommented:
There will be no problem, it is made for AD as well as for clients.
You need to have a TPM chip in your servers, though.
And you need to test recovery.
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Raymond PengSystems EngineerCommented:
From my understanding - there are no complications. You're basically just encrypting the HDD that houses the recovery partition and OS partition.

The link below shows how you would do this for Server 2012 R2. I however recommend looking into virtualizing your DCs using VMware ESX where you don't need to be concerned about physical tampering.

https://technet.microsoft.com/en-us/library/jj612864.aspx

https://social.technet.microsoft.com/Forums/windowsserver/en-US/c52ffc7d-f822-4b61-b633-46f8e04eac80/bitlocker-for-domain-controller
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Field Marshall BobAuthor Commented:
pjam:  full versions of 2008.  I discounted EFS since I don't want issues with certs.  If the server can talk to the rootca then there is no problem there but if the WAN link is down this may not always be the case.  THose sensitive files need to be accessed even if they can't talk to the mother ship.

Raymond: these are at branch offices and need to stay as a physical.  Putting in a hyperV (we don't use vmWare, hyperV only) environment for them is not really feasible.  We have virtualized DCs at both hot sites but the branch offices are staying physical.

McKnife:  Thanks for the feedback.  I figured it was ok to do but couldn't find a definitive answer anywhere.  We are bitlocking a test DC now.  Thanks for the confirmation.
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