Hyper-V Advice!!

[ReggieDunlap]

Hi All,

I am in the process of rebuilding a host server for Hyper-V. The server has dual Xeon 5520 processors. It will be rebuilt with WinSrv 2012 R2. I will eed to migrate 4 VMs back to this server when the rebuild is complete.

The Temp Hosts of these 4 VMs are simple Desktop level pc's running WinSrv 2012 R2. One temp host has an Intel Core 2 Duo E8400 processor, the other has a Core i5-3450 processor.

My intention is to use the "Shared Nothing Live Migration" to migrate the VMs. The matrix for processor compatibilty implies the migration should succeed:
Host A processor features = subset of Host B, migrate A - B succeeds.

My question is:
Do I HAVE to enable "Processor Compatibility Mode" on the VM's before I attempt the migration? Or can I migrate them with it off?

If anyone has any thoughts or theories, I'd appreciate hearing them.

Thanks.

 

[ReggieDunlap]

Nevermind.
While I do not believe I would have had to enable Processor Compatibility Mode, it became irrelevant because the hosts have to be members of a domain in order to use the "Shared Nothing Live Migration".

My temp hosts are not joined to my domain, so when I tried to configure Live Migration on them, I was halted by Hyper-V advised the host computer is not joined to a domain.

I wound up using the free version of the Veeam Backup and Restore app to migrate 3 of 4 VMs to the new host. The last VM is a file server with a VHD over 700GB, so I'll probably just bite the bullet and start a straight file copy from the temp host to the new host tonight. When the copy is complete, then Ill just use "Import" to import the VM into the new host Hyper-V manager.

I saw lots of views but I guess no one had any opinions either way. Of course, this may have been in the wrong thread too.