Hi
I have identical hosts with an exact CPU config (X5680, Westmere EP).
I can succesfully migrate VM with hardware version 9 but not the ones with hardware version 7 or 8.
Once I upgrade my version 7 VM to 9 it worked. When I deploy a new VM through the thick client this is done with version 8 and I am unable to migrate that one as well.
The error refers to carryless multiply or AES not being supported or enabled.
I found the following article VMware KB: vMotion/EVC incompatibility issues due to AES/PCLMULQDQ and I assume that I may need to disable the setting.
Once I enabled EVC for Nehalem processors as per KB article it worked fine but I am still wondering why it is not an issue for HW version 9 though?
Cheers