PC Processors

[hyperepic]

Hello,

This is my first post, I was referred here by AMD support.

The situation is as follows :

I have two physical servers, server 1 has an AMD Epyc 7272 CPU and Windows 2019 installed, server 2 has an AMD Epyc 9224 CPU and Windows 2022 installed.
Both servers are running Hyper-V and I'm trying to live migrate a machine from server 1 to server 2. I get an error stating that "the hardware on the destination computer is not compatible with the hardware requirements of this virtual machine. Error code '32784' "
Hyper-V configuration version on server 1 is 9.0 so I don't see an issue there.

I can move the machine while it is offline without any problems.
Bios is upgraded on both servers, network configuration is the same.

Are there any known issues between the two architectures that do not allow live migration between machines ?

[BillyFeltrop]

There are no known compatibility issues between the AMD Epyc 7272 and AMD Epyc 9224 CPUs for live migration in Hyper-V. However, several factors can lead to migration failures, including differences in processor features, BIOS settings, and Hyper-V configuration versions. To address these potential issues, users should consider enabling "Processor Compatibility Mode" in Hyper-V to ensure compatibility across CPU generations. Additionally, it's crucial to verify and update BIOS settings on both servers, paying attention to virtualization support and memory mapping. Checking and aligning the Hyper-V configuration versions on both servers is essential to prevent mismatches that may cause migration failures. Ensuring consistent network configurations and addressing connectivity issues can further enhance migration reliability. In cases where live migration continues to fail, users can explore cold migration as an alternative method, involving the temporary shutdown, file transfer, and restart of the virtual machine. While CPU compatibility is usually not the primary concern, these steps help troubleshoot and resolve live migration problems in Hyper-V effectively.

[elstaci · Accepted solution]

This thread would be best posted at AMD SERVERS GURU which deals with everything to do with EPYC Server processors and its hardware and software to get extra exposure: https://community.amd.com/t5/server-gurus/ct-p/amd-server-gurus