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Hyper-V 2012 & R2 Question

Posted on 2014-09-04
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Last Modified: 2014-11-12
Hi there,
   what we have is a hyper-v 2012 R2 which hosts SBS 2011 on it. There are 4 other hosts which run on Hyper-V 2012.
At the moment they are being replicated to our data centre on 2012 and R2 respectively.

I now have need to put a new RAID card in host which runs R2. I am wanting to export the VM off it and re-import it into one of a spare server which already runs some other business critical VMs but has enough resources to run the SBS VM.The server in question has Hyper-V 2012 on it.

I understand I cannot replicate it across.
I am wanting to know the following

   1. Can I export from R2 and then import it into 2012.
    2. Do I need to export / import and can I just copy the Virtual machine folder from R2 and should it just import ok on 2012.
3. The customer in question is a 24/7 business so the SBS VM needs to run on some other server (in this case 2012 not an R2) before I can flatten R2.
4. Plan is to rebuild and install Hyper-V 2012 on it.

Also, the only server with GUI is a 2012 which I used to control all servers including the R2. I wonder if I can export using Hyper-V manager from there on a network share or perhaps straight on to the drive of the server which I intend to host the SBS VM on.

thanks in advance.
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Question by:Kash
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8 Comments
 
LVL 39

Expert Comment

by:Philip Elder
ID: 40304799
The process is actually quite simple: Copy the folder with the VM's settings and the VHDX file(s) over to the other server. Then, in Hyper-V Manager, run the Import process choosing the settings folder and VHDX file(s).

Once complete the VM should boot without issue. Though, if stepping back one version keep an eye on Integration Services and the possible need to re-install.
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Expert Comment

by:Cliff Galiher
ID: 40304915
Actually, importing from 2012 R2 into 2012 is not supported. There is metadata in 2012 R2 (for gen2 VMs, two-tier replication, etc) that 2012 will choke on. Even the VHDX is touched so attaching it to an older VM is troublesome.

The only way to move backwards is to uninstall integration components, backup of the guest OS  then a hardware independent restore into an fresh VM on the older host. Yes, it is a pain. No, there are no good shortcuts. And yes, you'll have to set up your memory, vCPU, and guest network settings (it'll see a new NIC, and for SBS, that means rerunning config wizards too. And installing older integration component. The process isn't pretty.
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Author Comment

by:Kash
ID: 40305330
thanks for the input guys. Not what I wanted to hear for R2 -> 2012. To add to equation the SBS VM is around 2TB so will need a tad better planning me thinks.
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LVL 19

Author Comment

by:Kash
ID: 40305339
having said that the easier option for me would be to just copy the VHD files SBS VM (shutdown first), and then create a fresh Placeholder VM and attached the VHDs there.
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Author Comment

by:Kash
ID: 40305351
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Expert Comment

by:Ratnesh Mishra
ID: 40306048
Things always work if you really want to , i had one of such scenario and I worked it in a little bit different way although I can't recreate the entire setup again at my place however you may try a little bit weird and lengthy process which I tried.

Use VMWare Converter to export the VM running on Hyper-V 2012 R2. and then export the VM from VMware [Workstation or Esx] to Hyper-V 2012.

Its always better to uninstall integration service before such export.
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LVL 19

Accepted Solution

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Kash earned 0 total points
ID: 40314806
I ended up creating a place holder VM and then configuring the attached VHD files with a bit of jigery pokery. It worked.
thanks for help though
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Author Closing Comment

by:Kash
ID: 40322672
because that is the solution I did mesen
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