Considerations of PtoVing a Primary Domain Controller Emulator and GCS?


I wanted to get people's feedback on PtoVing a primary domain controller emulator and GCS server.  It is running on a 2012R2 server.  What are the ramifications of doing this, is it a good idea, considerations etc?  Server 2012R2 is supposed to be an enlightened OS.

The only reason I am considering this, is I have inherited this setup and currently this role is running on an overpowered bare metal server, which has plenty of room for hardware upgrades.  It would make a great virtualization host.  Also domain controllers although massively important, don't need a whole lot of horsepower.

Thanks for the feedback and tips.
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Seth SimmonsSr. Systems AdministratorCommented:
build a new vm and promote as a domain controller
move fsmo roles, decommission first server

something could go wrong during the conversion then you have bigger issues
migrating like this is cleaner
Do you have more dc's for redundancy?  MS does not recommend p2v or live migrations of dc's because kerberos is so dependent on time.  The best idea is to fire up a vm on your current VM Host make it a DC, cleanly transfer the FSMO roles then remove the DC you wanted to p2v.  

If you have no other dc's then when you make the newly available server a Host you can put a dc there.  Now you have 2 dc's each on it's own host!  Yay!
man people are fast :)
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
The recommended and best practice is to create a new Server, Add the AD Role, and Transfer the Roles.

HOWEVER, that is not to say that P2V does not function, and can be done if careful, we have worked with many clients, that have no choice, and we all do not work in a greenfield sites!

What does your current DC look like ?

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CnicNVAuthor Commented:
Thank you gentlemen, we have consensus.  

If we start becoming resource constrained and I want to re-purpose that bare-metal server as a VM host.  I will bring up another VM and promote it to a DC, transfer all roles, and demote the old one to a member server.  But for now, I will not rock the boat until such time as needed.

Have a good weekend:-)
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