Solved

In-place virtualization of server 2012 onto Hyper-V

Posted on 2014-12-19
3
257 Views
Last Modified: 2014-12-30
We have a single server running Windows Server 2012 which is our domain controller.

The server has tons of horsepower for our environment and I want to use it more effectively. We have a volume license to Windows Server 2012 R2 that I want to take advantage of, too.

Is there a relatively painless way to perform an in-place virtualization of this physical server?  So the end result is that we have a physical server running Windows Server 2012 R2 + Hyper-V role + 1x virtual machine which is the physical server?

The main challenges I'm seeing myself potentially facing right now is:

1) Licensing. Server currently runs an OEM license to Windows Server 2012. We possess a Volume License to Windows Server 2012 R2 which has downgrade rights so I'm pretty sure we're legit but I am wondering if there will be unexpected Windows Activation issues that we won't be able to resolve without re-installing

2) VHD disk size. the new virtual machine will, of course, need to have virtual hard disks that are smaller than the disks currently inside our server. This makes a simple "backup and restore" method of doing P2V a lot more difficult

3) Driver issues. Failure to boot after we virtualize because of missing or unloaded SATA / SCSI / AHCI drivers

4) Specialization issues. MAC address on the NIC changes, or other unexpected problems because of the sudden change in hardware on the guest OS

5) No way to quickly go back if things go horribly wrong


Is there some Microsoft-supported way of doing this?
0
Comment
Question by:Frosty555
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 58

Accepted Solution

by:
Cliff Galiher earned 500 total points
ID: 40510357
If you want a *supported * way then I'd set up a new hyper-v server (old hardware is fine) and stand up a new VM as a new DC. Then you can use 2012 R2 and not downgrade. Remote the old DC, reinstall a clean 2012 R2 server with the hyper-v role on the final hardware. The move the VM. Fully supported. Better final OS. And pretty painless.
0
 
LVL 31

Author Comment

by:Frosty555
ID: 40510387
:S that's going to be a lot of work, and this DC is being used as a fileserver and application server too (that's part of the reason for doing this migration is to separate this stuff out and make things adhere to best practices more) but let me make sure I'm understanding correct:

- Bring in a temporary server, install Server 2012 R2+Hyper-V role, create a new VM
- Install Server 2012 R2 on the new VM, join to domain, promote to DC
- Migrate everything over to the new DC VM (migrate FSMO roles, DHCP, etc.)
- Migrate other stuff (e.g. files, LOB applications, other stuff people put on the original server) to new VMs on the temporary server
- Demote the original server, wipe it, re-install Server 2012 R2, Hyper-V role, etc.
- Move the VM from the temporary server over to the original server
- Remove temporary server from the network, hope that it can do something else useful one day
0
 
LVL 58

Expert Comment

by:Cliff Galiher
ID: 40510389
That's what I'd do. It meets all of your goals, including having a way back if things go wrong, is fully supported by MS (most P2V paths are not), and limits disruption to end users. It isn't as complex as it reads, and can be done with relative ease.
0

Featured Post

Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

OfficeMate Freezes on login or does not load after login credentials are input.
Is your company's data protection keeping pace with virtualization? Here are 7 dynamic ways to adapt to rapid breakthroughs in technology.
In this Micro Tutorial viewers will learn how to restore their server from Bare Metal Backup image created with Windows Server Backup feature. As an example Windows 2012R2 is used.
This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…

751 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question