Migration HyperV

If migrating from say 2008 to 2012 (2008 also has virtual machines setup in hyperv manager) do the virtual machines need to be turned off prior to the migration ?
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Cliff GaliherCommented:
Yes, VMs must be in an off state to migrate from 2008/R2 to 2012/R2. Migrating a running machine across versions is only possible when going from 2012 to 2012 R2, and the reverse is NOT possible.
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Shabarinath RamadasanInfrastructure ArchitectCommented:
Yes. If you are trying to Migrate from Windows Server 2008 to Windows Server 2012 Hyper-V, the VM needs to be down.

However, If you are on Windows server 2012, you dont have to shutdown the VM to migrate to Windows Server 2012 R2 HyperV or a different Windows Server 2012 HyperV cluster. This is possible by using shared nothing live migration.

For Windows 2008 to Windows Server 2012 HyperV migration, you can refer this technet blog post.

http://blogs.technet.com/b/keithmayer/archive/2012/09/13/migrating-to-microsoft-hyper-v-server-2012-from-2008-r2-and-vmware-winserv-hyperv-itpro-vmware.aspx#.Uu5EF_mSw_4

I dont even call it as a migration ;) - its just exporting the VM from source and importing the VM from destination.

Good luck !

Shaba
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Windows Server 2008

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